TY  - JOUR
AU  - Bjelica, Vukašin
AU  - Anđelković, Marko
AU  - Lakušić, Margareta
AU  - Maričić, Marko
AU  - Arsovski, Dragan
AU  - Tomović, Ljiljana
AU  - Golubović, Ana
PY  - 2023
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5718
AB  - When captured by a predator, the prey’s options for escape decrease dramatically; however, some species, such as dice snakes, display a wide variety of behaviours in order to escape. We explored how factors such as locality, body temperature, body size, sex, reproductive status (i.e. gravid vs. non-gravid), presence and state of injuries, and the presence of food affect the occurrence of behavioural displays in a capture situation within and among four free-ranging populations of dice snakes, Natrix tessellata (Colubridae). Our study shows that dice snakes regularly hiss, discharge their cloacal glands, and coat themselves in musk when captured, while other behaviours were displayed only occasionally. Our study corroborates previous findings of local differentiation in snake behaviour, especially the case of supposed Batesian mimicry in dice snakes. In three of four localities where the dice snake lives in proximity or in sympatry with nose-horned vipers, they display fake striking, with additional head flattening as opposed to the viper-free locality. Larger snakes exhibit a wider array of antipredator behaviours, which commonly include musking and hissing. Expectedly, warmer snakes were more likely to display vigorous antipredator
behaviours such as struggling and striking. Injured snakes (a possible measure of a previous exposure to predation) displayed fewer behaviours and musked and hissed less. We call into question the analysis of isolated antipredator behavioural displays, and encourage using entire behavioural sequences in order to understand the complexity of antipredator behaviour.
PB  - New York: Springer Nature
T2  - Behavioral Ecology and Sociobiology
T1  - A dicey situation: capture behaviours in free‑ranging dice snakes
IS  - 5
VL  - 77
DO  - 10.1007/s00265-023-03323-9
SP  - 48
ER  - 

@article{
author = "Bjelica, Vukašin and Anđelković, Marko and Lakušić, Margareta and Maričić, Marko and Arsovski, Dragan and Tomović, Ljiljana and Golubović, Ana",
year = "2023",
abstract = "When captured by a predator, the prey’s options for escape decrease dramatically; however, some species, such as dice snakes, display a wide variety of behaviours in order to escape. We explored how factors such as locality, body temperature, body size, sex, reproductive status (i.e. gravid vs. non-gravid), presence and state of injuries, and the presence of food affect the occurrence of behavioural displays in a capture situation within and among four free-ranging populations of dice snakes, Natrix tessellata (Colubridae). Our study shows that dice snakes regularly hiss, discharge their cloacal glands, and coat themselves in musk when captured, while other behaviours were displayed only occasionally. Our study corroborates previous findings of local differentiation in snake behaviour, especially the case of supposed Batesian mimicry in dice snakes. In three of four localities where the dice snake lives in proximity or in sympatry with nose-horned vipers, they display fake striking, with additional head flattening as opposed to the viper-free locality. Larger snakes exhibit a wider array of antipredator behaviours, which commonly include musking and hissing. Expectedly, warmer snakes were more likely to display vigorous antipredator
behaviours such as struggling and striking. Injured snakes (a possible measure of a previous exposure to predation) displayed fewer behaviours and musked and hissed less. We call into question the analysis of isolated antipredator behavioural displays, and encourage using entire behavioural sequences in order to understand the complexity of antipredator behaviour.",
publisher = "New York: Springer Nature",
journal = "Behavioral Ecology and Sociobiology",
title = "A dicey situation: capture behaviours in free‑ranging dice snakes",
number = "5",
volume = "77",
doi = "10.1007/s00265-023-03323-9",
pages = "48"
}

Bjelica, V., Anđelković, M., Lakušić, M., Maričić, M., Arsovski, D., Tomović, L.,& Golubović, A.. (2023). A dicey situation: capture behaviours in free‑ranging dice snakes. in Behavioral Ecology and Sociobiology
New York: Springer Nature., 77(5), 48.
https://doi.org/10.1007/s00265-023-03323-9

Bjelica V, Anđelković M, Lakušić M, Maričić M, Arsovski D, Tomović L, Golubović A. A dicey situation: capture behaviours in free‑ranging dice snakes. in Behavioral Ecology and Sociobiology. 2023;77(5):48.
doi:10.1007/s00265-023-03323-9 .

Bjelica, Vukašin, Anđelković, Marko, Lakušić, Margareta, Maričić, Marko, Arsovski, Dragan, Tomović, Ljiljana, Golubović, Ana, "A dicey situation: capture behaviours in free‑ranging dice snakes" in Behavioral Ecology and Sociobiology, 77, no. 5 (2023):48,
https://doi.org/10.1007/s00265-023-03323-9 . .

TY  - JOUR
AU  - Tomović, Ljiljana
AU  - Anđelković, Marko
AU  - Golubović, Ana
AU  - Arsovski, Dragan
AU  - Ajtić, Rastko
AU  - Sterijovski, Bogoljub
AU  - Nikolić, Sonja
AU  - Crnobrnja-Isailović, Jelka
AU  - Lakušić, Margareta
AU  - Bonnet, Xavier
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5478
AB  - Insular populations offer excellent opportunities to study the factors that influence phenotypes. We observed island dwarfism in a widespread snake, the nose-horned viper (Vipera ammodytes). Island vipers were ~20% smaller than mainland individuals. They also produced fewer and smaller offspring. In snakes, food availability has a positive influence on body size, fecundity and offspring size. Consequently, low energy intake is a plausible explanation for insular dwarfism. The diet of island vipers was principally represented by lizards and centipedes, whereas the most profitable prey items (e.g. rodents) were regularly found in the stomach of mainland vipers. Furthermore, the proportion of individuals captured with a full stomach and good body condition were lower on the island compared with the mainland. Thus, island vipers were likely to be experiencing permanent energy restriction, with cascading effects on adult body size and reproductive output. Large prey promotes high relative jaw length in snakes. Island
vipers displayed smaller relative jaw length compared with mainland populations, suggesting that plasticity played a role in insular dwarfism. But the difference in relative tail length between island and mainland populations, a trait not subjected to food-induced plasticity, indicates local adaptation. Both plasticity and adaptation might influence the phenotype of island vipers.
PB  - Oxford University Press on behalf of The Linnean Society of London
T2  - Biological Journal of the Linnean Society
T1  - Dwarf vipers on a small island: body size, diet and fecundity correlates
IS  - 2
VL  - 137
DO  - 10.1093/biolinnean/blac085
SP  - 267
EP  - 279
ER  - 

@article{
author = "Tomović, Ljiljana and Anđelković, Marko and Golubović, Ana and Arsovski, Dragan and Ajtić, Rastko and Sterijovski, Bogoljub and Nikolić, Sonja and Crnobrnja-Isailović, Jelka and Lakušić, Margareta and Bonnet, Xavier",
year = "2022",
abstract = "Insular populations offer excellent opportunities to study the factors that influence phenotypes. We observed island dwarfism in a widespread snake, the nose-horned viper (Vipera ammodytes). Island vipers were ~20% smaller than mainland individuals. They also produced fewer and smaller offspring. In snakes, food availability has a positive influence on body size, fecundity and offspring size. Consequently, low energy intake is a plausible explanation for insular dwarfism. The diet of island vipers was principally represented by lizards and centipedes, whereas the most profitable prey items (e.g. rodents) were regularly found in the stomach of mainland vipers. Furthermore, the proportion of individuals captured with a full stomach and good body condition were lower on the island compared with the mainland. Thus, island vipers were likely to be experiencing permanent energy restriction, with cascading effects on adult body size and reproductive output. Large prey promotes high relative jaw length in snakes. Island
vipers displayed smaller relative jaw length compared with mainland populations, suggesting that plasticity played a role in insular dwarfism. But the difference in relative tail length between island and mainland populations, a trait not subjected to food-induced plasticity, indicates local adaptation. Both plasticity and adaptation might influence the phenotype of island vipers.",
publisher = "Oxford University Press on behalf of The Linnean Society of London",
journal = "Biological Journal of the Linnean Society",
title = "Dwarf vipers on a small island: body size, diet and fecundity correlates",
number = "2",
volume = "137",
doi = "10.1093/biolinnean/blac085",
pages = "267-279"
}

Tomović, L., Anđelković, M., Golubović, A., Arsovski, D., Ajtić, R., Sterijovski, B., Nikolić, S., Crnobrnja-Isailović, J., Lakušić, M.,& Bonnet, X.. (2022). Dwarf vipers on a small island: body size, diet and fecundity correlates. in Biological Journal of the Linnean Society
Oxford University Press on behalf of The Linnean Society of London., 137(2), 267-279.
https://doi.org/10.1093/biolinnean/blac085

Tomović L, Anđelković M, Golubović A, Arsovski D, Ajtić R, Sterijovski B, Nikolić S, Crnobrnja-Isailović J, Lakušić M, Bonnet X. Dwarf vipers on a small island: body size, diet and fecundity correlates. in Biological Journal of the Linnean Society. 2022;137(2):267-279.
doi:10.1093/biolinnean/blac085 .

Tomović, Ljiljana, Anđelković, Marko, Golubović, Ana, Arsovski, Dragan, Ajtić, Rastko, Sterijovski, Bogoljub, Nikolić, Sonja, Crnobrnja-Isailović, Jelka, Lakušić, Margareta, Bonnet, Xavier, "Dwarf vipers on a small island: body size, diet and fecundity correlates" in Biological Journal of the Linnean Society, 137, no. 2 (2022):267-279,
https://doi.org/10.1093/biolinnean/blac085 . .

TY  - JOUR
AU  - Urošević, Aleksandar
AU  - Crnobrnja-Isailović, Jelka
AU  - Ljubisavljević, Katarina
AU  - Vukov, Tanja
AU  - Anđelković, Marko
AU  - Ivanović, Ana
AU  - Golubović, Ana
AU  - Vučić, Tijana
AU  - Tomović, Ljiljana
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5549
AB  - In this paper, the updated checklist of Serbian amphibians and reptiles is
presented. The updated checklist of Serbian amphibians and reptiles was compiled
from the literature on distribution, taxonomy and phylogeny. The checklist
contains 48 autochthonous and two introduced species. Five species underwent
taxonomic revisions (Triturus ivanbureschi, T. macedonicus, Pelobates balcanicus,
Bufotes viridis and Mediodactylus kotschyi). Two species were added after recent
taxonomic splits of species’ complexes (Hyla orientalis and Anguis colchica).
Presence of new (Lacerta trilineata) and introduced species (Hemidactylus turcicus)
was confirmed during recent fieldwork. There are at least eight more species
that can potentially be present in Serbia. The national protection legislative should
be updated according to the current checklist.
AB  - У овом раду приказујемо ажурирану листу фауне водоземаца и
гмизаваца у Србији. Листа је састављена на основу литературе о
дистрибуцији, таксономији и филогенији водоземаца и гмизаваца који
припадају нашој фауни. Садржи 48 врста аутохтоних за Републику
Србију као и две интродуковане врсте за које је потврђено да се на
територији Србије размножавају и успостављају популације. Пет
врста на овој листи су недавно прошле кроз таксономску ревизију
(Triturus ivanbureschi, T. macedonicus, Pelobates balcanicus, Bufotes
viridis и Mediodactylus kotschyi), а две врсте су придодате након
скорашњег таксономског раздвајања комплекса врста (Hyla orientalis и
Anguis colchica). Најновија теренска истраживања су потврдила при-
суство једне нове (Lacerta trilineata) и једне интродуковане врсте
(Hemidactylus turcicus). Потенцијално је на територији Репубике Срби-
је присутно још најмање осам врста водоземаца и гмизаваца, пре свега
у пограничним областима. Од 48 врста аутохтоних за Републику
Србију, седам су рањиве/готово угрожене на међународном нивоу,
према критеријумима IUCN, три су у прилозима CITES-а, 39 се налазе
на анексима Директиве о стаништима (Habitat Directive), а све су на
прилозима Бернске конвенције. У току је процена конзервационог
статуса свих врста на националном нивоу, на основу чега ће бити
предложена нова легислатива.
Са 48 врста, Србија се може сматрати за богату биолошком
разноврсношћу водоземаца и гмизаваца па чак и центром диверзитета
појединих таксона – пре свега великих мрмољака и других комплекса
врста (Hyla, Pelophylax, Anguis). Даља истраживања батрахо- и херпе-
тофауне требало би концентрисати на контактне/хибридне зоне
комплекса врста и пограничне области наше земље.
PB  - Belgrade: Natural History Museum
T2  - Bulletin of the Natural History Museum
T1  - An updated checklist of the Serbian batracho- and herpetofauna
T1  - Ажурирана листа батрахо- и херпетофауне Републике Србије
VL  - 15
DO  - 10.5937/bnhmb2215149U
SP  - 149
EP  - 169
ER  - 

@article{
author = "Urošević, Aleksandar and Crnobrnja-Isailović, Jelka and Ljubisavljević, Katarina and Vukov, Tanja and Anđelković, Marko and Ivanović, Ana and Golubović, Ana and Vučić, Tijana and Tomović, Ljiljana",
year = "2022",
abstract = "In this paper, the updated checklist of Serbian amphibians and reptiles is
presented. The updated checklist of Serbian amphibians and reptiles was compiled
from the literature on distribution, taxonomy and phylogeny. The checklist
contains 48 autochthonous and two introduced species. Five species underwent
taxonomic revisions (Triturus ivanbureschi, T. macedonicus, Pelobates balcanicus,
Bufotes viridis and Mediodactylus kotschyi). Two species were added after recent
taxonomic splits of species’ complexes (Hyla orientalis and Anguis colchica).
Presence of new (Lacerta trilineata) and introduced species (Hemidactylus turcicus)
was confirmed during recent fieldwork. There are at least eight more species
that can potentially be present in Serbia. The national protection legislative should
be updated according to the current checklist., У овом раду приказујемо ажурирану листу фауне водоземаца и
гмизаваца у Србији. Листа је састављена на основу литературе о
дистрибуцији, таксономији и филогенији водоземаца и гмизаваца који
припадају нашој фауни. Садржи 48 врста аутохтоних за Републику
Србију као и две интродуковане врсте за које је потврђено да се на
територији Србије размножавају и успостављају популације. Пет
врста на овој листи су недавно прошле кроз таксономску ревизију
(Triturus ivanbureschi, T. macedonicus, Pelobates balcanicus, Bufotes
viridis и Mediodactylus kotschyi), а две врсте су придодате након
скорашњег таксономског раздвајања комплекса врста (Hyla orientalis и
Anguis colchica). Најновија теренска истраживања су потврдила при-
суство једне нове (Lacerta trilineata) и једне интродуковане врсте
(Hemidactylus turcicus). Потенцијално је на територији Репубике Срби-
је присутно још најмање осам врста водоземаца и гмизаваца, пре свега
у пограничним областима. Од 48 врста аутохтоних за Републику
Србију, седам су рањиве/готово угрожене на међународном нивоу,
према критеријумима IUCN, три су у прилозима CITES-а, 39 се налазе
на анексима Директиве о стаништима (Habitat Directive), а све су на
прилозима Бернске конвенције. У току је процена конзервационог
статуса свих врста на националном нивоу, на основу чега ће бити
предложена нова легислатива.
Са 48 врста, Србија се може сматрати за богату биолошком
разноврсношћу водоземаца и гмизаваца па чак и центром диверзитета
појединих таксона – пре свега великих мрмољака и других комплекса
врста (Hyla, Pelophylax, Anguis). Даља истраживања батрахо- и херпе-
тофауне требало би концентрисати на контактне/хибридне зоне
комплекса врста и пограничне области наше земље.",
publisher = "Belgrade: Natural History Museum",
journal = "Bulletin of the Natural History Museum",
title = "An updated checklist of the Serbian batracho- and herpetofauna, Ажурирана листа батрахо- и херпетофауне Републике Србије",
volume = "15",
doi = "10.5937/bnhmb2215149U",
pages = "149-169"
}

Urošević, A., Crnobrnja-Isailović, J., Ljubisavljević, K., Vukov, T., Anđelković, M., Ivanović, A., Golubović, A., Vučić, T.,& Tomović, L.. (2022). An updated checklist of the Serbian batracho- and herpetofauna. in Bulletin of the Natural History Museum
Belgrade: Natural History Museum., 15, 149-169.
https://doi.org/10.5937/bnhmb2215149U

Urošević A, Crnobrnja-Isailović J, Ljubisavljević K, Vukov T, Anđelković M, Ivanović A, Golubović A, Vučić T, Tomović L. An updated checklist of the Serbian batracho- and herpetofauna. in Bulletin of the Natural History Museum. 2022;15:149-169.
doi:10.5937/bnhmb2215149U .

Urošević, Aleksandar, Crnobrnja-Isailović, Jelka, Ljubisavljević, Katarina, Vukov, Tanja, Anđelković, Marko, Ivanović, Ana, Golubović, Ana, Vučić, Tijana, Tomović, Ljiljana, "An updated checklist of the Serbian batracho- and herpetofauna" in Bulletin of the Natural History Museum, 15 (2022):149-169,
https://doi.org/10.5937/bnhmb2215149U . .

TY  - CONF
AU  - Bjelica, Vukašin
AU  - Maričić, Marko
AU  - Anđelković, Marko
AU  - Golubović, Ana
AU  - Ajtić, Rastko
AU  - Sterijovski, Bogoljub
AU  - Arsovski, Dragan
AU  - Tomović, Ljiljana
AU  - Bonnet, Xavier
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5278
AB  - Golem Grad island, better known as “Snake Island” due to the large population of dice snakes
(Natrix tessellata) is a strictly protected area within National Park Galičica (North Macedonia). From
2008, the snakes’ tale started slowly unravelling, thanks to the start of mark-recapture monitoring.
More than 6.000 snakes were marked during >15 years. Opportunistic dissections provided information
about fecundity and body condition. Three distinct colour morphs coexist: ‘green back with dark spots’
is the most common, but uniformly green and melanistic individuals are not rare either. Furthermore,
this population exhibits gigantism, possibly due to the abundance of food: the largest island male
and female measured 113cm and 129cm, respectively, in contrast to maximal body sizes from other
populations reported in literature: 95cm and 122.5cm. Worryingly, this island population faces serious
threats, especially fish poaching. Hundreds of snakes meet their untimely fate tangled and ultimately
drowned in fishing nets, or even persecuted, while small individuals are crushed by the rocks they hide
under by wandering tourists. Despite continuous conservation efforts, this snake population is rapidly
declining, particularly since 2011 when poaching pressure increased. More recently, additional dice
snake population surveys were launched in Prespa, in Konjsko village (MK) and on Mal Grad Island (AL).
The conservation status differs among the three localities. According to IUCN Red Lists, the dice snake
is considered as Near Threatened (NT) in North Macedonia, while in Albania it is still classified as Not
Evaluated (NE; however in the new, updated list of 2019 (still unpublished) is has been evaluated as
Least Concern (LC)). We plan to use genetics and recapture analyses to assess the genetic structure and
the degree of (possible) connectivity among sites. This information will be especially useful in order to
understand how viable Prespa Lake’s dice snake population(s) are, despite the various pressures they
face. Efficient conservation actions rely on such insight, while a species conservation action plan at the
transboundary level is required.
PB  - Skopje: Macedonian Ecological Society
C3  - Abstract book: 6th Congress of Ecologists of the Republic of North Macedonia, with International Participation; 2022 Oct 15-18; Ohrid, North Macedonia
T1  - A twist of fate: Conservation of Lake Prespa’s iconic snakes
SP  - 159
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5278
ER  - 

@conference{
author = "Bjelica, Vukašin and Maričić, Marko and Anđelković, Marko and Golubović, Ana and Ajtić, Rastko and Sterijovski, Bogoljub and Arsovski, Dragan and Tomović, Ljiljana and Bonnet, Xavier",
year = "2022",
abstract = "Golem Grad island, better known as “Snake Island” due to the large population of dice snakes
(Natrix tessellata) is a strictly protected area within National Park Galičica (North Macedonia). From
2008, the snakes’ tale started slowly unravelling, thanks to the start of mark-recapture monitoring.
More than 6.000 snakes were marked during >15 years. Opportunistic dissections provided information
about fecundity and body condition. Three distinct colour morphs coexist: ‘green back with dark spots’
is the most common, but uniformly green and melanistic individuals are not rare either. Furthermore,
this population exhibits gigantism, possibly due to the abundance of food: the largest island male
and female measured 113cm and 129cm, respectively, in contrast to maximal body sizes from other
populations reported in literature: 95cm and 122.5cm. Worryingly, this island population faces serious
threats, especially fish poaching. Hundreds of snakes meet their untimely fate tangled and ultimately
drowned in fishing nets, or even persecuted, while small individuals are crushed by the rocks they hide
under by wandering tourists. Despite continuous conservation efforts, this snake population is rapidly
declining, particularly since 2011 when poaching pressure increased. More recently, additional dice
snake population surveys were launched in Prespa, in Konjsko village (MK) and on Mal Grad Island (AL).
The conservation status differs among the three localities. According to IUCN Red Lists, the dice snake
is considered as Near Threatened (NT) in North Macedonia, while in Albania it is still classified as Not
Evaluated (NE; however in the new, updated list of 2019 (still unpublished) is has been evaluated as
Least Concern (LC)). We plan to use genetics and recapture analyses to assess the genetic structure and
the degree of (possible) connectivity among sites. This information will be especially useful in order to
understand how viable Prespa Lake’s dice snake population(s) are, despite the various pressures they
face. Efficient conservation actions rely on such insight, while a species conservation action plan at the
transboundary level is required.",
publisher = "Skopje: Macedonian Ecological Society",
journal = "Abstract book: 6th Congress of Ecologists of the Republic of North Macedonia, with International Participation; 2022 Oct 15-18; Ohrid, North Macedonia",
title = "A twist of fate: Conservation of Lake Prespa’s iconic snakes",
pages = "159",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5278"
}

Bjelica, V., Maričić, M., Anđelković, M., Golubović, A., Ajtić, R., Sterijovski, B., Arsovski, D., Tomović, L.,& Bonnet, X.. (2022). A twist of fate: Conservation of Lake Prespa’s iconic snakes. in Abstract book: 6th Congress of Ecologists of the Republic of North Macedonia, with International Participation; 2022 Oct 15-18; Ohrid, North Macedonia
Skopje: Macedonian Ecological Society., 159.
https://hdl.handle.net/21.15107/rcub_ibiss_5278

Bjelica V, Maričić M, Anđelković M, Golubović A, Ajtić R, Sterijovski B, Arsovski D, Tomović L, Bonnet X. A twist of fate: Conservation of Lake Prespa’s iconic snakes. in Abstract book: 6th Congress of Ecologists of the Republic of North Macedonia, with International Participation; 2022 Oct 15-18; Ohrid, North Macedonia. 2022;:159.
https://hdl.handle.net/21.15107/rcub_ibiss_5278 .

Bjelica, Vukašin, Maričić, Marko, Anđelković, Marko, Golubović, Ana, Ajtić, Rastko, Sterijovski, Bogoljub, Arsovski, Dragan, Tomović, Ljiljana, Bonnet, Xavier, "A twist of fate: Conservation of Lake Prespa’s iconic snakes" in Abstract book: 6th Congress of Ecologists of the Republic of North Macedonia, with International Participation; 2022 Oct 15-18; Ohrid, North Macedonia (2022):159,
https://hdl.handle.net/21.15107/rcub_ibiss_5278 .

TY  - CONF
AU  - Bjelica, Vukašin
AU  - Maričić, Marko
AU  - Anđelković, Marko
AU  - Lakušić, Margareta
AU  - Arsovski, Dragan
AU  - Tomović, Ljiljana
AU  - Golubović, Ana
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5274
AB  - Prey animals have developed a wide array of antipredator behaviours to confront, dissuade or escape a predator. Death feigning (DF), where prey animals get in a tonic immobile state and resemble dead animal, is a sort of a last-ditch attempt to escape consumption. Even if this behaviour works, it is vitally important that the prey chooses the right time to escape: a quick decision may attract the predators' attention, while waiting too long might prolong exposure. In the field, we measured both the occurrence and the duration of DF in three distinct colour morphs of dice snakes; the most common dice morph, uniformly green, and melanistic individuals. We sampled only adult individuals and considered factors such as sex, size, body temperature, injuries, and presence of food, gravidity as well as absolute crawling speeds on the occurrence and duration of DF. Our results suggest that females DF more often than males and that gravid females DF the least often. Snakes that crawled faster were less likely to DF, but interestingly, gravid females that crawled faster were more likely to DF. Diced and green gravid snakes spent far less time in DF than nongravid individuals, while in melanistic snakes gravidity did not affect DF duration. These differences are especially pronounced in the uniformly green snakes. Additionally, colder, bigger and faster snakes DF for longer intervals. Larger snakes cannot be immediately consumed and thus can afford to try a risky strategy such as DF, which is supposedly used as a hard reset in a predator-prey interaction. Gravidity undoubtedly imposes significant constraints on snakes and probably limits escape options and makes DF too risky. However, melanism can offer certain advantages to gravid individuals, notably thermal benefits and in turn a higher metabolic rate and locomotor capacity which can prove beneficial in a DF situation.
PB  - Belgrade: Institute for Biological Research "Siniša Stanković"– National Institute of Republic of Serbia, University of Belgrade
C3  - Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia
T1  - Drop dead gorgeous: death feigning behaviour in three distinct colour morphs. of dice snakes
SP  - 103
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5274
ER  - 

@conference{
author = "Bjelica, Vukašin and Maričić, Marko and Anđelković, Marko and Lakušić, Margareta and Arsovski, Dragan and Tomović, Ljiljana and Golubović, Ana",
year = "2022",
abstract = "Prey animals have developed a wide array of antipredator behaviours to confront, dissuade or escape a predator. Death feigning (DF), where prey animals get in a tonic immobile state and resemble dead animal, is a sort of a last-ditch attempt to escape consumption. Even if this behaviour works, it is vitally important that the prey chooses the right time to escape: a quick decision may attract the predators' attention, while waiting too long might prolong exposure. In the field, we measured both the occurrence and the duration of DF in three distinct colour morphs of dice snakes; the most common dice morph, uniformly green, and melanistic individuals. We sampled only adult individuals and considered factors such as sex, size, body temperature, injuries, and presence of food, gravidity as well as absolute crawling speeds on the occurrence and duration of DF. Our results suggest that females DF more often than males and that gravid females DF the least often. Snakes that crawled faster were less likely to DF, but interestingly, gravid females that crawled faster were more likely to DF. Diced and green gravid snakes spent far less time in DF than nongravid individuals, while in melanistic snakes gravidity did not affect DF duration. These differences are especially pronounced in the uniformly green snakes. Additionally, colder, bigger and faster snakes DF for longer intervals. Larger snakes cannot be immediately consumed and thus can afford to try a risky strategy such as DF, which is supposedly used as a hard reset in a predator-prey interaction. Gravidity undoubtedly imposes significant constraints on snakes and probably limits escape options and makes DF too risky. However, melanism can offer certain advantages to gravid individuals, notably thermal benefits and in turn a higher metabolic rate and locomotor capacity which can prove beneficial in a DF situation.",
publisher = "Belgrade: Institute for Biological Research "Siniša Stanković"– National Institute of Republic of Serbia, University of Belgrade",
journal = "Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia",
title = "Drop dead gorgeous: death feigning behaviour in three distinct colour morphs. of dice snakes",
pages = "103",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5274"
}

Bjelica, V., Maričić, M., Anđelković, M., Lakušić, M., Arsovski, D., Tomović, L.,& Golubović, A.. (2022). Drop dead gorgeous: death feigning behaviour in three distinct colour morphs. of dice snakes. in Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia
Belgrade: Institute for Biological Research "Siniša Stanković"– National Institute of Republic of Serbia, University of Belgrade., 103.
https://hdl.handle.net/21.15107/rcub_ibiss_5274

Bjelica V, Maričić M, Anđelković M, Lakušić M, Arsovski D, Tomović L, Golubović A. Drop dead gorgeous: death feigning behaviour in three distinct colour morphs. of dice snakes. in Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia. 2022;:103.
https://hdl.handle.net/21.15107/rcub_ibiss_5274 .

Bjelica, Vukašin, Maričić, Marko, Anđelković, Marko, Lakušić, Margareta, Arsovski, Dragan, Tomović, Ljiljana, Golubović, Ana, "Drop dead gorgeous: death feigning behaviour in three distinct colour morphs. of dice snakes" in Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia (2022):103,
https://hdl.handle.net/21.15107/rcub_ibiss_5274 .

TY  - CONF
AU  - Bjelica, Vukašin
AU  - Anđelković, Marko
AU  - Lakušić, Margareta
AU  - Maričić, Marko
AU  - Arsovski, Dragan
AU  - Tomović, Ljiljana
AU  - Golubović, Ana
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5275
AB  - Prey animals have a wide array of strategies that they use to avoid or deter predators. In some cases, these strategies include warding off a predator attack by advertising strong chemical defences, such as venom, or by mimicking sympatric species, which do possess such defences (i.e. bluffing/mimicry). Dice snakes are nonvenemous natricine snakes that often live in sympatry with vipers. These snakes also have an ample arsenal of antipredator behavioural displays that include bluffing, characterized by hissing (auditory mimicry) with head flattening and fake strikes (visual mimicry). We measured the occurrence of bluffing displays in four different localities; on Golem Grad Island and in Konjsko (North Macedonia), where dice snakes share their habitat with nose-horned vipers (Vipera mmodytes) while in the other two localities, Mal Grad Island (Albania) and Pančevački rit Serbia), vipers are not present. We analysed the effect of locality, size (snout to vent length) nd sex on occurrence of bluffing as an antipredator strategy. Our results show that the ccurrence of bluffing was significantly affected by locality and body size. Notably, in the two localities where dice snakes share the same habitat with vipers the occurrence of bluffing displays is significantly higher than in the two localities where vipers are not present. This possibly indicates a case of Batesian mimicry, reported for the first time in dice snakes. Additionaly, our analysis shows that the predicted probabilities of the occurrence of bluffing increased with size. This seems intuitive, as bluffing behaviours should have a certain size threshold when they become effective, since small snakes can be easily consumed.
PB  - Belgrade: Institute for Biological Research "Siniša Stanković"– National Institute of Republic of Serbia, University of Belgrade
C3  - Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia
T1  - Barking Dogs Never Bite: Bluffing behaviour in dice snakes (Natrix tessellata)
SP  - 117
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5275
ER  - 

@conference{
author = "Bjelica, Vukašin and Anđelković, Marko and Lakušić, Margareta and Maričić, Marko and Arsovski, Dragan and Tomović, Ljiljana and Golubović, Ana",
year = "2022",
abstract = "Prey animals have a wide array of strategies that they use to avoid or deter predators. In some cases, these strategies include warding off a predator attack by advertising strong chemical defences, such as venom, or by mimicking sympatric species, which do possess such defences (i.e. bluffing/mimicry). Dice snakes are nonvenemous natricine snakes that often live in sympatry with vipers. These snakes also have an ample arsenal of antipredator behavioural displays that include bluffing, characterized by hissing (auditory mimicry) with head flattening and fake strikes (visual mimicry). We measured the occurrence of bluffing displays in four different localities; on Golem Grad Island and in Konjsko (North Macedonia), where dice snakes share their habitat with nose-horned vipers (Vipera mmodytes) while in the other two localities, Mal Grad Island (Albania) and Pančevački rit Serbia), vipers are not present. We analysed the effect of locality, size (snout to vent length) nd sex on occurrence of bluffing as an antipredator strategy. Our results show that the ccurrence of bluffing was significantly affected by locality and body size. Notably, in the two localities where dice snakes share the same habitat with vipers the occurrence of bluffing displays is significantly higher than in the two localities where vipers are not present. This possibly indicates a case of Batesian mimicry, reported for the first time in dice snakes. Additionaly, our analysis shows that the predicted probabilities of the occurrence of bluffing increased with size. This seems intuitive, as bluffing behaviours should have a certain size threshold when they become effective, since small snakes can be easily consumed.",
publisher = "Belgrade: Institute for Biological Research "Siniša Stanković"– National Institute of Republic of Serbia, University of Belgrade",
journal = "Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia",
title = "Barking Dogs Never Bite: Bluffing behaviour in dice snakes (Natrix tessellata)",
pages = "117",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5275"
}

Bjelica, V., Anđelković, M., Lakušić, M., Maričić, M., Arsovski, D., Tomović, L.,& Golubović, A.. (2022). Barking Dogs Never Bite: Bluffing behaviour in dice snakes (Natrix tessellata). in Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia
Belgrade: Institute for Biological Research "Siniša Stanković"– National Institute of Republic of Serbia, University of Belgrade., 117.
https://hdl.handle.net/21.15107/rcub_ibiss_5275

Bjelica V, Anđelković M, Lakušić M, Maričić M, Arsovski D, Tomović L, Golubović A. Barking Dogs Never Bite: Bluffing behaviour in dice snakes (Natrix tessellata). in Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia. 2022;:117.
https://hdl.handle.net/21.15107/rcub_ibiss_5275 .

Bjelica, Vukašin, Anđelković, Marko, Lakušić, Margareta, Maričić, Marko, Arsovski, Dragan, Tomović, Ljiljana, Golubović, Ana, "Barking Dogs Never Bite: Bluffing behaviour in dice snakes (Natrix tessellata)" in Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia (2022):117,
https://hdl.handle.net/21.15107/rcub_ibiss_5275 .

TY  - JOUR
AU  - Golubović, Ana
AU  - Anđelković, Marko
AU  - Tomović, L.
AU  - Arsovski, D.
AU  - Gvozdenović, S.
AU  - Šukalo, G.
AU  - Ajtić, R.
AU  - Bonnet, X.
PY  - 2021
UR  - https://onlinelibrary.wiley.com/doi/10.1111/jzo.12882
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/4198
AB  - Once cornered by a predator, prey can try to intimidate the assailant or repel it, with irritating sprays for example. If seized, they may scratch, bite or struggle to cause the predator to release its grip. At the other extreme, they can adopt passive behaviours such as death feigning (DF, i.e. thanatosis). DF is observed widely across the animal kingdom; it usually involves a combination of displays such as immobility, supination, leg-folding, mouth opening and release of nauseating secretions. When displaying DF, individuals are highly vulnerable and effectively bet on the attitude of the predator; this risky choice is presumably under positive selection. We explored how propensity for DF varies among and within populations of dice snakes (Natrix tessellata). We also considered the influence of sex, body size, reproductive status, colour morph and presence of injuries (N = 2760 snakes; five populations). DF propensity differed among populations, possibly due to variation in local predation pressures. Larger snakes displayed DF more frequently and carried more signs of probable past predation attempts (scars and recent injuries). We found no sex effect on antipredator behaviour. Gravid females used DF less frequently compared with non-gravid females. Differential expression of DF across populations, body sizes and reproductive status suggests that this complex behaviour was selected to respond to environmental and intrinsic factors. Future studies should explore which elements affect duration, intensity and success of DF in defence against various predators.
PB  - Blackwell Publishing Ltd
T2  - Journal of Zoology
T1  - Death‐feigning propensity varies within dice snake populations but not with sex or colour morph
DO  - 10.1111/jzo.12882
SP  - jzo.12882
ER  - 

@article{
author = "Golubović, Ana and Anđelković, Marko and Tomović, L. and Arsovski, D. and Gvozdenović, S. and Šukalo, G. and Ajtić, R. and Bonnet, X.",
year = "2021",
abstract = "Once cornered by a predator, prey can try to intimidate the assailant or repel it, with irritating sprays for example. If seized, they may scratch, bite or struggle to cause the predator to release its grip. At the other extreme, they can adopt passive behaviours such as death feigning (DF, i.e. thanatosis). DF is observed widely across the animal kingdom; it usually involves a combination of displays such as immobility, supination, leg-folding, mouth opening and release of nauseating secretions. When displaying DF, individuals are highly vulnerable and effectively bet on the attitude of the predator; this risky choice is presumably under positive selection. We explored how propensity for DF varies among and within populations of dice snakes (Natrix tessellata). We also considered the influence of sex, body size, reproductive status, colour morph and presence of injuries (N = 2760 snakes; five populations). DF propensity differed among populations, possibly due to variation in local predation pressures. Larger snakes displayed DF more frequently and carried more signs of probable past predation attempts (scars and recent injuries). We found no sex effect on antipredator behaviour. Gravid females used DF less frequently compared with non-gravid females. Differential expression of DF across populations, body sizes and reproductive status suggests that this complex behaviour was selected to respond to environmental and intrinsic factors. Future studies should explore which elements affect duration, intensity and success of DF in defence against various predators.",
publisher = "Blackwell Publishing Ltd",
journal = "Journal of Zoology",
title = "Death‐feigning propensity varies within dice snake populations but not with sex or colour morph",
doi = "10.1111/jzo.12882",
pages = "jzo.12882"
}

Golubović, A., Anđelković, M., Tomović, L., Arsovski, D., Gvozdenović, S., Šukalo, G., Ajtić, R.,& Bonnet, X.. (2021). Death‐feigning propensity varies within dice snake populations but not with sex or colour morph. in Journal of Zoology
Blackwell Publishing Ltd., jzo.12882.
https://doi.org/10.1111/jzo.12882

Golubović A, Anđelković M, Tomović L, Arsovski D, Gvozdenović S, Šukalo G, Ajtić R, Bonnet X. Death‐feigning propensity varies within dice snake populations but not with sex or colour morph. in Journal of Zoology. 2021;:jzo.12882.
doi:10.1111/jzo.12882 .

Golubović, Ana, Anđelković, Marko, Tomović, L., Arsovski, D., Gvozdenović, S., Šukalo, G., Ajtić, R., Bonnet, X., "Death‐feigning propensity varies within dice snake populations but not with sex or colour morph" in Journal of Zoology (2021):jzo.12882,
https://doi.org/10.1111/jzo.12882 . .

TY  - JOUR
AU  - Novčić, Ivana
AU  - Krunić, Sara
AU  - Golubović, Ana
AU  - Zorić, Katarina
AU  - Haubner, Mark E.
PY  - 2021
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/4739
AB  - Data reliability is the degree to which the data can be replicated by the same or different observers and should be one of the most basic aspects of scientific data assessment. Yet, for example, information on the reliability of feeding rate data in shorebirds is strikingly lacking in the literature. In this study, the reliability of foraging behavior metrics collected on Semipalmated Sandpipers (Calidris pusilla) and Short-billed Dowitchers (Limnodromus griseus) during their spring stopovers in Delaware Bay, Maryland, USA, was examined. Using video recordings of 30 foraging individuals scored by four observers, including one experienced observer, assessed: (1) to what extent the data on these two species' foraging rates can be replicated while viewing videos at real-time speed as opposed to videos viewed in slow-motion; and (2) whether intra- and inter-observer reliabilities vary between species and with the observer experience. The results demonstrate that scoring feeding rates in Short-billed Dowitchers does not require the analysis of the footage in slow motion, implying that data may be obtained in real time in the field, following an appropriate training of observers. By contrast, detailed scoring of different foraging techniques in small sandpipers requires either slow-motion reviews of the field-sourced footage, or the clumping of foraging techniques into tactile and visual types to provide sufficient reliability of the data collected in the field if filming of birds is not feasible.
PB  - Washington: The Waterbird Society
T2  - Waterbirds
T1  - The reliability of measurements of foraging behavior in shorebirds: a comparison of real-time and slow-motion recordings
IS  - 1
VL  - 44
DO  - 10.1675/063.044.0106
SP  - 68
EP  - 75
ER  - 

@article{
author = "Novčić, Ivana and Krunić, Sara and Golubović, Ana and Zorić, Katarina and Haubner, Mark E.",
year = "2021",
abstract = "Data reliability is the degree to which the data can be replicated by the same or different observers and should be one of the most basic aspects of scientific data assessment. Yet, for example, information on the reliability of feeding rate data in shorebirds is strikingly lacking in the literature. In this study, the reliability of foraging behavior metrics collected on Semipalmated Sandpipers (Calidris pusilla) and Short-billed Dowitchers (Limnodromus griseus) during their spring stopovers in Delaware Bay, Maryland, USA, was examined. Using video recordings of 30 foraging individuals scored by four observers, including one experienced observer, assessed: (1) to what extent the data on these two species' foraging rates can be replicated while viewing videos at real-time speed as opposed to videos viewed in slow-motion; and (2) whether intra- and inter-observer reliabilities vary between species and with the observer experience. The results demonstrate that scoring feeding rates in Short-billed Dowitchers does not require the analysis of the footage in slow motion, implying that data may be obtained in real time in the field, following an appropriate training of observers. By contrast, detailed scoring of different foraging techniques in small sandpipers requires either slow-motion reviews of the field-sourced footage, or the clumping of foraging techniques into tactile and visual types to provide sufficient reliability of the data collected in the field if filming of birds is not feasible.",
publisher = "Washington: The Waterbird Society",
journal = "Waterbirds",
title = "The reliability of measurements of foraging behavior in shorebirds: a comparison of real-time and slow-motion recordings",
number = "1",
volume = "44",
doi = "10.1675/063.044.0106",
pages = "68-75"
}

Novčić, I., Krunić, S., Golubović, A., Zorić, K.,& Haubner, M. E.. (2021). The reliability of measurements of foraging behavior in shorebirds: a comparison of real-time and slow-motion recordings. in Waterbirds
Washington: The Waterbird Society., 44(1), 68-75.
https://doi.org/10.1675/063.044.0106

Novčić I, Krunić S, Golubović A, Zorić K, Haubner ME. The reliability of measurements of foraging behavior in shorebirds: a comparison of real-time and slow-motion recordings. in Waterbirds. 2021;44(1):68-75.
doi:10.1675/063.044.0106 .

Novčić, Ivana, Krunić, Sara, Golubović, Ana, Zorić, Katarina, Haubner, Mark E., "The reliability of measurements of foraging behavior in shorebirds: a comparison of real-time and slow-motion recordings" in Waterbirds, 44, no. 1 (2021):68-75,
https://doi.org/10.1675/063.044.0106 . .

TY  - JOUR
AU  - Lakušić, Margareta
AU  - Billy, Gopal
AU  - Bjelica, Vukašin
AU  - Golubović, Ana
AU  - Anđelković, Marko
AU  - Bonnet, Xavier
PY  - 2020
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/4848
AB  - Theoretically, animals integrate intrinsic and extrinsic factors to
respondappropriately to thewide range of stressors they encounter
during their life span. We examined how stress response varies
betweensexes andamongmorphotypes inwild dice snakes (Natrix
tessellata).Wealso considered reproductive and feeding status and
antipredator behavior. We used two indicators of stress (glucose
[GLUC] and corticosterone [CORT] levels) at eight sampling time
intervals (immediately after capture, up to 17 h after) and a large
sample size (N p 113 snakes). Concentrations of both markers
increased sharply after capture (an equivalent of predation). This
acute phase occurred earlier for GLUC (30 min) compared to
CORT (60 min). Then the values plateaued to very high levels
without decline over time, indicating prolonged saturation of the
hypothalamus-pituitary-adrenal axis. In contrast to our expectations,
we found no effect of sex, morphotype, or reproductive status.
Yet the CORT stress response of those individuals displaying
death-feigning (DF) antipredator behavior was attenuated
compared to those that did not. Low stress hormones levels may
facilitate the expression of DF (high levels supporting fleeing
behavior). The presence of partially digested material in the
stomach was associated with higher blood GLUC during the
plateau. Assaying bloodGLUCrequires very little blood butwas
as good as CORT at gauging acute stress response. The prolonged
plateau suggests that captivity should be minimized
during field studies.
PB  - NLM (Medline)
T2  - Physiological and Biochemical Zoology
T1  - Effect of Capture, Phenotype, and Physiological Status on Blood Glucose and Plasma Corticosterone Levels in Free-Ranging Dice Snakes
IS  - 6
VL  - 93
DO  - 10.1086/711958
SP  - 477
EP  - 487
ER  - 

@article{
author = "Lakušić, Margareta and Billy, Gopal and Bjelica, Vukašin and Golubović, Ana and Anđelković, Marko and Bonnet, Xavier",
year = "2020",
abstract = "Theoretically, animals integrate intrinsic and extrinsic factors to
respondappropriately to thewide range of stressors they encounter
during their life span. We examined how stress response varies
betweensexes andamongmorphotypes inwild dice snakes (Natrix
tessellata).Wealso considered reproductive and feeding status and
antipredator behavior. We used two indicators of stress (glucose
[GLUC] and corticosterone [CORT] levels) at eight sampling time
intervals (immediately after capture, up to 17 h after) and a large
sample size (N p 113 snakes). Concentrations of both markers
increased sharply after capture (an equivalent of predation). This
acute phase occurred earlier for GLUC (30 min) compared to
CORT (60 min). Then the values plateaued to very high levels
without decline over time, indicating prolonged saturation of the
hypothalamus-pituitary-adrenal axis. In contrast to our expectations,
we found no effect of sex, morphotype, or reproductive status.
Yet the CORT stress response of those individuals displaying
death-feigning (DF) antipredator behavior was attenuated
compared to those that did not. Low stress hormones levels may
facilitate the expression of DF (high levels supporting fleeing
behavior). The presence of partially digested material in the
stomach was associated with higher blood GLUC during the
plateau. Assaying bloodGLUCrequires very little blood butwas
as good as CORT at gauging acute stress response. The prolonged
plateau suggests that captivity should be minimized
during field studies.",
publisher = "NLM (Medline)",
journal = "Physiological and Biochemical Zoology",
title = "Effect of Capture, Phenotype, and Physiological Status on Blood Glucose and Plasma Corticosterone Levels in Free-Ranging Dice Snakes",
number = "6",
volume = "93",
doi = "10.1086/711958",
pages = "477-487"
}

Lakušić, M., Billy, G., Bjelica, V., Golubović, A., Anđelković, M.,& Bonnet, X.. (2020). Effect of Capture, Phenotype, and Physiological Status on Blood Glucose and Plasma Corticosterone Levels in Free-Ranging Dice Snakes. in Physiological and Biochemical Zoology
NLM (Medline)., 93(6), 477-487.
https://doi.org/10.1086/711958

Lakušić M, Billy G, Bjelica V, Golubović A, Anđelković M, Bonnet X. Effect of Capture, Phenotype, and Physiological Status on Blood Glucose and Plasma Corticosterone Levels in Free-Ranging Dice Snakes. in Physiological and Biochemical Zoology. 2020;93(6):477-487.
doi:10.1086/711958 .

Lakušić, Margareta, Billy, Gopal, Bjelica, Vukašin, Golubović, Ana, Anđelković, Marko, Bonnet, Xavier, "Effect of Capture, Phenotype, and Physiological Status on Blood Glucose and Plasma Corticosterone Levels in Free-Ranging Dice Snakes" in Physiological and Biochemical Zoology, 93, no. 6 (2020):477-487,
https://doi.org/10.1086/711958 . .

TY  - CONF
AU  - Tomović, Ljiljana
AU  - Arsovski, Dragan
AU  - Golubović, Ana
AU  - Nikolić, Sonja
AU  - Anđelković, Marko
AU  - Sterijovski, Bogoljub
AU  - Ajtić, Rastko
AU  - Crnobrnja-Isailović, Jelka
AU  - Bonnet, Xavier
PY  - 2019
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5215
AB  - The nose-horned viper (Vipera ammodytes) is the least studied species of European true vipers, regarding its population ecology and reproductive biology. We rаn capture-recapture (CR) studies on this species during 12 years (2007-2018) on Golem Grad Island (Prespa Lake, North Macedonia). We captured 501 vipers (304 adults, 161 subadults, 36 newborns) and recaptured 240 individuals enabling us to estimate demographic traits. Females larger than 35.0 cm of snout-vent-length [SVL] (the smallest undoubtedly gravid female) and males larger than 37.0 cm SVL (the smallest male observed while mating) were considered adults. The largest captured individual was 66 cm long, indicating insular dwarfism. Fecundity data were gathered in the field (palpation) and from females collected for controlled parturition in order to obtain size at birth and define newborn size (up to 18.0 cm SVL). Intermediate sized snakes were considered subadults. Modelling of subadult and adult CR data implied sexand age-specific capture probabilities (females and subadults being on the lower end); mean annual survival probabilities were in favour of the females (78% vs. 71%). Total population size was estimated at 2345 (s=293.9) individuals, indicating the highest reported density for this species (130 ind/ha, s=16.4). Adult sex-ratio was 1,4 (male/female) and the proportion of reproductive females ranged from 44% to 74%, suggesting a biennial cycle. Litter size varied from two to nine (average 4.5); this is particularly low for this species. Diet changed with ontogeny – juveniles fed mainly on Scolopendra cingulata and lizards, while adults mainly preyed on lizards and dice snakes.
PB  - Milan, Italy: University of Milan, the University of Pavia, the Natural History Museum of Milan and the University of Milano-Bicocca
C3  - XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy
T1  - Population characteristics of the nose-horned viper (Vipera ammodytes) on Golem Grad island (North Macedonia)
SP  - 86
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5215
ER  - 

@conference{
author = "Tomović, Ljiljana and Arsovski, Dragan and Golubović, Ana and Nikolić, Sonja and Anđelković, Marko and Sterijovski, Bogoljub and Ajtić, Rastko and Crnobrnja-Isailović, Jelka and Bonnet, Xavier",
year = "2019",
abstract = "The nose-horned viper (Vipera ammodytes) is the least studied species of European true vipers, regarding its population ecology and reproductive biology. We rаn capture-recapture (CR) studies on this species during 12 years (2007-2018) on Golem Grad Island (Prespa Lake, North Macedonia). We captured 501 vipers (304 adults, 161 subadults, 36 newborns) and recaptured 240 individuals enabling us to estimate demographic traits. Females larger than 35.0 cm of snout-vent-length [SVL] (the smallest undoubtedly gravid female) and males larger than 37.0 cm SVL (the smallest male observed while mating) were considered adults. The largest captured individual was 66 cm long, indicating insular dwarfism. Fecundity data were gathered in the field (palpation) and from females collected for controlled parturition in order to obtain size at birth and define newborn size (up to 18.0 cm SVL). Intermediate sized snakes were considered subadults. Modelling of subadult and adult CR data implied sexand age-specific capture probabilities (females and subadults being on the lower end); mean annual survival probabilities were in favour of the females (78% vs. 71%). Total population size was estimated at 2345 (s=293.9) individuals, indicating the highest reported density for this species (130 ind/ha, s=16.4). Adult sex-ratio was 1,4 (male/female) and the proportion of reproductive females ranged from 44% to 74%, suggesting a biennial cycle. Litter size varied from two to nine (average 4.5); this is particularly low for this species. Diet changed with ontogeny – juveniles fed mainly on Scolopendra cingulata and lizards, while adults mainly preyed on lizards and dice snakes.",
publisher = "Milan, Italy: University of Milan, the University of Pavia, the Natural History Museum of Milan and the University of Milano-Bicocca",
journal = "XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy",
title = "Population characteristics of the nose-horned viper (Vipera ammodytes) on Golem Grad island (North Macedonia)",
pages = "86",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5215"
}

Tomović, L., Arsovski, D., Golubović, A., Nikolić, S., Anđelković, M., Sterijovski, B., Ajtić, R., Crnobrnja-Isailović, J.,& Bonnet, X.. (2019). Population characteristics of the nose-horned viper (Vipera ammodytes) on Golem Grad island (North Macedonia). in XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy
Milan, Italy: University of Milan, the University of Pavia, the Natural History Museum of Milan and the University of Milano-Bicocca., 86.
https://hdl.handle.net/21.15107/rcub_ibiss_5215

Tomović L, Arsovski D, Golubović A, Nikolić S, Anđelković M, Sterijovski B, Ajtić R, Crnobrnja-Isailović J, Bonnet X. Population characteristics of the nose-horned viper (Vipera ammodytes) on Golem Grad island (North Macedonia). in XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy. 2019;:86.
https://hdl.handle.net/21.15107/rcub_ibiss_5215 .

Tomović, Ljiljana, Arsovski, Dragan, Golubović, Ana, Nikolić, Sonja, Anđelković, Marko, Sterijovski, Bogoljub, Ajtić, Rastko, Crnobrnja-Isailović, Jelka, Bonnet, Xavier, "Population characteristics of the nose-horned viper (Vipera ammodytes) on Golem Grad island (North Macedonia)" in XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy (2019):86,
https://hdl.handle.net/21.15107/rcub_ibiss_5215 .

TY  - CONF
AU  - Urošević, Aleksandar
AU  - Popović, Miloš
AU  - Maričić, Marko
AU  - Pomorišac, Gordan
AU  - Petrović, Dragiša
AU  - Grabovac, David
AU  - Surla, Aleksandra
AU  - Medenica, Ivan
AU  - Avramović, Stefan
AU  - Golubović, Ana
PY  - 2019
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5530
AB  - The Red-eared slider (Trachemis scripta elegans) is among the world’s most invasive species, and recentlyits related subspecies (T. s. scripta and T. s. troostii) were also being introduced in Europe. Herein, we present dataon introduction of the Red-eared slider and its related subspecies in Serbia, gathered during more than ten years.The number of reports of these turtles across Serbia almost doubled since 2015. The introductions are concentratedaround Belgrade and Novi Sad cities where large populations were detected, and all cases of possible reproduction:nest digging females and findings of hatchlings. The lakes, ponds and canals in the lowland habitats (less than 100m a.s.l.) were more vulnerable to the introduction of alien turtles – more than 73% of found alien turtles weredetected at low altitudes. The two other subspecies (T. s. scripta and T. s. troostii), which emerged in the pet tradeas a “substitute” after the ban on import and trade of Red-eared sliders, were also recorded at the few localities.They can hybridize with the Red-eared slider (T. s. elegans) and possibly increase its invasive potential. The stricterenforcement of the existing legislature in Serbia is needed, together with raising public awareness of the problemand eradication of established populations. Building of turtle sanctuaries is also suggested as an ethical andecologically safe alternative for disposal of unwanted pets.
PB  - Belgrade: Institute for Biological Research "Siniša Stanković" - National Institute of the Republic of Serbia, University of Belgrade
C3  - XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy
T1  - Spread of Trachemys scripta ssp. (Testudines, Emydidae) in Serbia, with overview of possible reproduction
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5530
ER  - 

@conference{
author = "Urošević, Aleksandar and Popović, Miloš and Maričić, Marko and Pomorišac, Gordan and Petrović, Dragiša and Grabovac, David and Surla, Aleksandra and Medenica, Ivan and Avramović, Stefan and Golubović, Ana",
year = "2019",
abstract = "The Red-eared slider (Trachemis scripta elegans) is among the world’s most invasive species, and recentlyits related subspecies (T. s. scripta and T. s. troostii) were also being introduced in Europe. Herein, we present dataon introduction of the Red-eared slider and its related subspecies in Serbia, gathered during more than ten years.The number of reports of these turtles across Serbia almost doubled since 2015. The introductions are concentratedaround Belgrade and Novi Sad cities where large populations were detected, and all cases of possible reproduction:nest digging females and findings of hatchlings. The lakes, ponds and canals in the lowland habitats (less than 100m a.s.l.) were more vulnerable to the introduction of alien turtles – more than 73% of found alien turtles weredetected at low altitudes. The two other subspecies (T. s. scripta and T. s. troostii), which emerged in the pet tradeas a “substitute” after the ban on import and trade of Red-eared sliders, were also recorded at the few localities.They can hybridize with the Red-eared slider (T. s. elegans) and possibly increase its invasive potential. The stricterenforcement of the existing legislature in Serbia is needed, together with raising public awareness of the problemand eradication of established populations. Building of turtle sanctuaries is also suggested as an ethical andecologically safe alternative for disposal of unwanted pets.",
publisher = "Belgrade: Institute for Biological Research "Siniša Stanković" - National Institute of the Republic of Serbia, University of Belgrade",
journal = "XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy",
title = "Spread of Trachemys scripta ssp. (Testudines, Emydidae) in Serbia, with overview of possible reproduction",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5530"
}

Urošević, A., Popović, M., Maričić, M., Pomorišac, G., Petrović, D., Grabovac, D., Surla, A., Medenica, I., Avramović, S.,& Golubović, A.. (2019). Spread of Trachemys scripta ssp. (Testudines, Emydidae) in Serbia, with overview of possible reproduction. in XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy
Belgrade: Institute for Biological Research "Siniša Stanković" - National Institute of the Republic of Serbia, University of Belgrade..
https://hdl.handle.net/21.15107/rcub_ibiss_5530

Urošević A, Popović M, Maričić M, Pomorišac G, Petrović D, Grabovac D, Surla A, Medenica I, Avramović S, Golubović A. Spread of Trachemys scripta ssp. (Testudines, Emydidae) in Serbia, with overview of possible reproduction. in XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy. 2019;.
https://hdl.handle.net/21.15107/rcub_ibiss_5530 .

Urošević, Aleksandar, Popović, Miloš, Maričić, Marko, Pomorišac, Gordan, Petrović, Dragiša, Grabovac, David, Surla, Aleksandra, Medenica, Ivan, Avramović, Stefan, Golubović, Ana, "Spread of Trachemys scripta ssp. (Testudines, Emydidae) in Serbia, with overview of possible reproduction" in XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy (2019),
https://hdl.handle.net/21.15107/rcub_ibiss_5530 .

TY  - CONF
AU  - Urošević, Aleksandar
AU  - Popović, Miloš
AU  - Maričić, Marko
AU  - Pomorišac, Gordan
AU  - Petrović, Dragiša
AU  - Grabovac, David
AU  - Surla, Aleksandra
AU  - Medenica, Ivan
AU  - Avramović, Stefan
AU  - Golubović, Ana
PY  - 2019
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5529
AB  - The Red-eared slider (Trachemis scripta elegans) is among the world’s most invasive species, and recently
its related subspecies (T. s. scripta and T. s. troostii) were also being introduced in Europe. Herein, we present data
on introduction of the Red-eared slider and its related subspecies in Serbia, gathered during more than ten years.
The number of reports of these turtles across Serbia almost doubled since 2015. The introductions are concentrated
around Belgrade and Novi Sad cities where large populations were detected, and all cases of possible reproduction:
nest digging females and findings of hatchlings. The lakes, ponds and canals in the lowland habitats (less than 100
m a.s.l.) were more vulnerable to the introduction of alien turtles – more than 73% of found alien turtles were
detected at low altitudes. The two other subspecies (T. s. scripta and T. s. troostii), which emerged in the pet trade
as a “substitute” after the ban on import and trade of Red-eared sliders, were also recorded at the few localities.
They can hybridize with the Red-eared slider (T. s. elegans) and possibly increase its invasive potential. The stricter
enforcement of the existing legislature in Serbia is needed, together with raising public awareness of the problem
and eradication of established populations. Building of turtle sanctuaries is also suggested as an ethical and
ecologically safe alternative for disposal of unwanted pets.
PB  - Milan, Italy: University of Milan, the University of Pavia, the Natural History Museum of Milan and the University of Milano-Bicocca
C3  - XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy
T1  - Spread of Trachemys scripta ssp. (Testudines, Emydidae) in Serbia, with overview of possible reproduction
SP  - 212
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5529
ER  - 

@conference{
author = "Urošević, Aleksandar and Popović, Miloš and Maričić, Marko and Pomorišac, Gordan and Petrović, Dragiša and Grabovac, David and Surla, Aleksandra and Medenica, Ivan and Avramović, Stefan and Golubović, Ana",
year = "2019",
abstract = "The Red-eared slider (Trachemis scripta elegans) is among the world’s most invasive species, and recently
its related subspecies (T. s. scripta and T. s. troostii) were also being introduced in Europe. Herein, we present data
on introduction of the Red-eared slider and its related subspecies in Serbia, gathered during more than ten years.
The number of reports of these turtles across Serbia almost doubled since 2015. The introductions are concentrated
around Belgrade and Novi Sad cities where large populations were detected, and all cases of possible reproduction:
nest digging females and findings of hatchlings. The lakes, ponds and canals in the lowland habitats (less than 100
m a.s.l.) were more vulnerable to the introduction of alien turtles – more than 73% of found alien turtles were
detected at low altitudes. The two other subspecies (T. s. scripta and T. s. troostii), which emerged in the pet trade
as a “substitute” after the ban on import and trade of Red-eared sliders, were also recorded at the few localities.
They can hybridize with the Red-eared slider (T. s. elegans) and possibly increase its invasive potential. The stricter
enforcement of the existing legislature in Serbia is needed, together with raising public awareness of the problem
and eradication of established populations. Building of turtle sanctuaries is also suggested as an ethical and
ecologically safe alternative for disposal of unwanted pets.",
publisher = "Milan, Italy: University of Milan, the University of Pavia, the Natural History Museum of Milan and the University of Milano-Bicocca",
journal = "XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy",
title = "Spread of Trachemys scripta ssp. (Testudines, Emydidae) in Serbia, with overview of possible reproduction",
pages = "212",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5529"
}

Urošević, A., Popović, M., Maričić, M., Pomorišac, G., Petrović, D., Grabovac, D., Surla, A., Medenica, I., Avramović, S.,& Golubović, A.. (2019). Spread of Trachemys scripta ssp. (Testudines, Emydidae) in Serbia, with overview of possible reproduction. in XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy
Milan, Italy: University of Milan, the University of Pavia, the Natural History Museum of Milan and the University of Milano-Bicocca., 212.
https://hdl.handle.net/21.15107/rcub_ibiss_5529

Urošević A, Popović M, Maričić M, Pomorišac G, Petrović D, Grabovac D, Surla A, Medenica I, Avramović S, Golubović A. Spread of Trachemys scripta ssp. (Testudines, Emydidae) in Serbia, with overview of possible reproduction. in XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy. 2019;:212.
https://hdl.handle.net/21.15107/rcub_ibiss_5529 .

Urošević, Aleksandar, Popović, Miloš, Maričić, Marko, Pomorišac, Gordan, Petrović, Dragiša, Grabovac, David, Surla, Aleksandra, Medenica, Ivan, Avramović, Stefan, Golubović, Ana, "Spread of Trachemys scripta ssp. (Testudines, Emydidae) in Serbia, with overview of possible reproduction" in XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy (2019):212,
https://hdl.handle.net/21.15107/rcub_ibiss_5529 .

TY  - CONF
AU  - Golubović, Ana
AU  - Anđelković, Marko
AU  - Gvozdenović, Slađana
AU  - Šukalo, Goran
AU  - Tomović, Ljiljana
AU  - Bonnet, Xavier
PY  - 2019
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5417
AB  - Dice snakes (Natrix tessellata) display an extensive repertoire of antipredator behaviors. They flee when they detect an attacker, and if captured, they vigorously struggle to evade. They spin their body, while spraying the foe with a malodorous mixture of cloacal content and cloacal gland secretions. Ultimately, dice snakes can switch to death-feigning (DF, thanatosis), i.e. tonic immobility in inverted position; usually opening their mouth, protruding their tongue, and sometimes producing bubbles with blood and saliva. However DF is a dangerous option since vital organs, like the liver, are exposed to the predator. We examined antipredator behaviors triggered by human observers, comparing capture-induced DF among five populations. DF prevalence ranged from 6.4% to 31.5%, probably due to different local predator pressures. We found no effects of dorsal coloration pattern or sex on DF frequencies. In Golem Grad population, a large sample (N=1,909) showed that DF frequency increased with body size. This might indicate to protective effect of DF from gape-limited predators. DF was three times less frequent in gravid than in non-gravid females. In another experiment we compared duration of DF in water and on land, after half a minute long standardized manipulation. Snakes released in container with water significantly decreased DF duration comparing to those released on land. Overall, different factors influence the occurrence and duration of DF, suggesting that this “desperate” attempt is under selection.
PB  - Milan, Italy: University of Milan, the University of Pavia, the Natural History Museum of Milan and the University of Milano-Bicocca
C3  - XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy
T1  - Oscar deserving performance: death-feigning in dice snakes
SP  - 71
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5417
ER  - 

@conference{
author = "Golubović, Ana and Anđelković, Marko and Gvozdenović, Slađana and Šukalo, Goran and Tomović, Ljiljana and Bonnet, Xavier",
year = "2019",
abstract = "Dice snakes (Natrix tessellata) display an extensive repertoire of antipredator behaviors. They flee when they detect an attacker, and if captured, they vigorously struggle to evade. They spin their body, while spraying the foe with a malodorous mixture of cloacal content and cloacal gland secretions. Ultimately, dice snakes can switch to death-feigning (DF, thanatosis), i.e. tonic immobility in inverted position; usually opening their mouth, protruding their tongue, and sometimes producing bubbles with blood and saliva. However DF is a dangerous option since vital organs, like the liver, are exposed to the predator. We examined antipredator behaviors triggered by human observers, comparing capture-induced DF among five populations. DF prevalence ranged from 6.4% to 31.5%, probably due to different local predator pressures. We found no effects of dorsal coloration pattern or sex on DF frequencies. In Golem Grad population, a large sample (N=1,909) showed that DF frequency increased with body size. This might indicate to protective effect of DF from gape-limited predators. DF was three times less frequent in gravid than in non-gravid females. In another experiment we compared duration of DF in water and on land, after half a minute long standardized manipulation. Snakes released in container with water significantly decreased DF duration comparing to those released on land. Overall, different factors influence the occurrence and duration of DF, suggesting that this “desperate” attempt is under selection.",
publisher = "Milan, Italy: University of Milan, the University of Pavia, the Natural History Museum of Milan and the University of Milano-Bicocca",
journal = "XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy",
title = "Oscar deserving performance: death-feigning in dice snakes",
pages = "71",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5417"
}

Golubović, A., Anđelković, M., Gvozdenović, S., Šukalo, G., Tomović, L.,& Bonnet, X.. (2019). Oscar deserving performance: death-feigning in dice snakes. in XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy
Milan, Italy: University of Milan, the University of Pavia, the Natural History Museum of Milan and the University of Milano-Bicocca., 71.
https://hdl.handle.net/21.15107/rcub_ibiss_5417

Golubović A, Anđelković M, Gvozdenović S, Šukalo G, Tomović L, Bonnet X. Oscar deserving performance: death-feigning in dice snakes. in XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy. 2019;:71.
https://hdl.handle.net/21.15107/rcub_ibiss_5417 .

Golubović, Ana, Anđelković, Marko, Gvozdenović, Slađana, Šukalo, Goran, Tomović, Ljiljana, Bonnet, Xavier, "Oscar deserving performance: death-feigning in dice snakes" in XX European Congress of Herpetology. Program & Abstracts; 2019 Sep 2-6; Milan, Italy (2019):71,
https://hdl.handle.net/21.15107/rcub_ibiss_5417 .

TY  - JOUR
AU  - Tomović, Ljiljana
AU  - Anđelković, Marko
AU  - Krizmanić, Imre
AU  - Ajtić, Rastko
AU  - Urošević, Aleksandar
AU  - Labus, Nenad
AU  - Simović, Aleksandar
AU  - Maričić, Marko
AU  - Golubović, Ana
AU  - Ćorović, Jelena
AU  - Paunović, Ana
AU  - Jović, Danko
AU  - Krstić, Milivoj
AU  - Lakušić, Margareta
AU  - Džukić, Georg
PY  - 2019
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/4847
AB  - In the most recent comprehensive distribution of vipers in the western and
central Balkans, 210 precise records (146 UTM cells) for all three species of vipers
(Vipera ammodytes, V. berus, and V. ursinii) were presented for Serbia. During the
past eight years, extensive field investigations within the ongoing conservation
projects in our country (e.g. Ecological Networks and Natura 2000), significantly
increased the number of faunistic records, which urged the need for publishing the
updated distribution of all three species of vipers in Serbia. We collected a total of
770 records of vipers in Serbia, of which literature data constitute 49.4% (n = 380)
and unpublished field data made as much as 50.6% (n = 390) of the records. As
expected, V. ammodytes was the best-represented species, accounting for 614 records (79.8%), followed by V. berus with 145 records (18.8%), and V. ursinii
with 11 records (1.4%). Results of the present study showed that in our country
there are three areas crucially important for the diversity of vipers, with all three
species present: Koritnik Mt. and Žljeb Mt. in Metohija, as well as Mokra Gora Mt.
in south-western Serbia. We also found 25 10×10 km UTM squares with sympatry
of two species of vipers. The designation of areas of special importance for vipers
(e.g. Mokra Gora Mt., Dukat Mt., Besna kobila Mt., Kamena Gora Mt.) should be
one of the priority actions for improvement of their conservation statuses in our
country.
AB  - Literaturni podaci o distribuci roda Vipera na području zapadnog i centralnog dela Balkanskog poluostrva, pokazuju da je u Srbiji zabeleženo 210 nalaza (146 UTM polja) za sve tri vrste ovog roda (Vipera ammodytes, V. berus i V. ursinii). Tokom poslednjih osam godina, intenzivna faunistička istraživanja u okviru nacionalnih konzervacionih projekata (npr. Ekološke mreže i Natura 2000), doprinela su značajnom povećanju broja podataka o distribuciji ove tri vrste, čime se ukazala potreba za objavljivanjem novih faunističkih podataka. U ovom radu, ukupno je sakupljeno 770 podataka o rasprostranjenju predstavnika roda Vipera u Srbiji, od čega literaturni podaci čine 49.4% (n = 380), a novi faunistički podaci predstavljaju 50.6% (n = 390). Očekivano, najveći broj podataka se odnosi na vrstu V. ammodytes (614 - 79.8%), dok je mnogo manje podataka za vrste V. berus (145 - 18.8%) i V. ursinii (11 - 1.4%). Rezultati ovog rada su pokazali da na teritoriji Republike Srbije postoje tri područja od najvećeg značaja za diverzitet roda Vipera, na kojima su prisutne sve tri vrste: planine Koritnik i Žljeb u Metohiji, kao i planina Mokra gora u jugozapadnoj Srbiji. Takođe, zabeleženo je ukupno 25 UTM 10×10 km kvadrata u kojima po dve vrste roda Vipera žive u simpatriji. Proglašenje zaštićenih područja od posebnog značaja za otrovnice (npr. Mokra gora, Dukat, Besna kobila, Kamena gora), trebalo bi da bude prioritet za poboljšanje konzervacionog statusa vrsta roda Vipera u našoj zemlji.
PB  - Belgrade: Natural History Museum
T2  - Bulletin of the Natural History Museum
T1  - Distribution of three Vipera species in the Republic of Serbia
T1  - Rasprostranjenje tri vrste roda Vipera u Republici Srbiji
VL  - 12
DO  - 10.5937/bnhmb1912217T
SP  - 217
EP  - 242
ER  - 

@article{
author = "Tomović, Ljiljana and Anđelković, Marko and Krizmanić, Imre and Ajtić, Rastko and Urošević, Aleksandar and Labus, Nenad and Simović, Aleksandar and Maričić, Marko and Golubović, Ana and Ćorović, Jelena and Paunović, Ana and Jović, Danko and Krstić, Milivoj and Lakušić, Margareta and Džukić, Georg",
year = "2019",
abstract = "In the most recent comprehensive distribution of vipers in the western and
central Balkans, 210 precise records (146 UTM cells) for all three species of vipers
(Vipera ammodytes, V. berus, and V. ursinii) were presented for Serbia. During the
past eight years, extensive field investigations within the ongoing conservation
projects in our country (e.g. Ecological Networks and Natura 2000), significantly
increased the number of faunistic records, which urged the need for publishing the
updated distribution of all three species of vipers in Serbia. We collected a total of
770 records of vipers in Serbia, of which literature data constitute 49.4% (n = 380)
and unpublished field data made as much as 50.6% (n = 390) of the records. As
expected, V. ammodytes was the best-represented species, accounting for 614 records (79.8%), followed by V. berus with 145 records (18.8%), and V. ursinii
with 11 records (1.4%). Results of the present study showed that in our country
there are three areas crucially important for the diversity of vipers, with all three
species present: Koritnik Mt. and Žljeb Mt. in Metohija, as well as Mokra Gora Mt.
in south-western Serbia. We also found 25 10×10 km UTM squares with sympatry
of two species of vipers. The designation of areas of special importance for vipers
(e.g. Mokra Gora Mt., Dukat Mt., Besna kobila Mt., Kamena Gora Mt.) should be
one of the priority actions for improvement of their conservation statuses in our
country., Literaturni podaci o distribuci roda Vipera na području zapadnog i centralnog dela Balkanskog poluostrva, pokazuju da je u Srbiji zabeleženo 210 nalaza (146 UTM polja) za sve tri vrste ovog roda (Vipera ammodytes, V. berus i V. ursinii). Tokom poslednjih osam godina, intenzivna faunistička istraživanja u okviru nacionalnih konzervacionih projekata (npr. Ekološke mreže i Natura 2000), doprinela su značajnom povećanju broja podataka o distribuciji ove tri vrste, čime se ukazala potreba za objavljivanjem novih faunističkih podataka. U ovom radu, ukupno je sakupljeno 770 podataka o rasprostranjenju predstavnika roda Vipera u Srbiji, od čega literaturni podaci čine 49.4% (n = 380), a novi faunistički podaci predstavljaju 50.6% (n = 390). Očekivano, najveći broj podataka se odnosi na vrstu V. ammodytes (614 - 79.8%), dok je mnogo manje podataka za vrste V. berus (145 - 18.8%) i V. ursinii (11 - 1.4%). Rezultati ovog rada su pokazali da na teritoriji Republike Srbije postoje tri područja od najvećeg značaja za diverzitet roda Vipera, na kojima su prisutne sve tri vrste: planine Koritnik i Žljeb u Metohiji, kao i planina Mokra gora u jugozapadnoj Srbiji. Takođe, zabeleženo je ukupno 25 UTM 10×10 km kvadrata u kojima po dve vrste roda Vipera žive u simpatriji. Proglašenje zaštićenih područja od posebnog značaja za otrovnice (npr. Mokra gora, Dukat, Besna kobila, Kamena gora), trebalo bi da bude prioritet za poboljšanje konzervacionog statusa vrsta roda Vipera u našoj zemlji.",
publisher = "Belgrade: Natural History Museum",
journal = "Bulletin of the Natural History Museum",
title = "Distribution of three Vipera species in the Republic of Serbia, Rasprostranjenje tri vrste roda Vipera u Republici Srbiji",
volume = "12",
doi = "10.5937/bnhmb1912217T",
pages = "217-242"
}

Tomović, L., Anđelković, M., Krizmanić, I., Ajtić, R., Urošević, A., Labus, N., Simović, A., Maričić, M., Golubović, A., Ćorović, J., Paunović, A., Jović, D., Krstić, M., Lakušić, M.,& Džukić, G.. (2019). Distribution of three Vipera species in the Republic of Serbia. in Bulletin of the Natural History Museum
Belgrade: Natural History Museum., 12, 217-242.
https://doi.org/10.5937/bnhmb1912217T

Tomović L, Anđelković M, Krizmanić I, Ajtić R, Urošević A, Labus N, Simović A, Maričić M, Golubović A, Ćorović J, Paunović A, Jović D, Krstić M, Lakušić M, Džukić G. Distribution of three Vipera species in the Republic of Serbia. in Bulletin of the Natural History Museum. 2019;12:217-242.
doi:10.5937/bnhmb1912217T .

Tomović, Ljiljana, Anđelković, Marko, Krizmanić, Imre, Ajtić, Rastko, Urošević, Aleksandar, Labus, Nenad, Simović, Aleksandar, Maričić, Marko, Golubović, Ana, Ćorović, Jelena, Paunović, Ana, Jović, Danko, Krstić, Milivoj, Lakušić, Margareta, Džukić, Georg, "Distribution of three Vipera species in the Republic of Serbia" in Bulletin of the Natural History Museum, 12 (2019):217-242,
https://doi.org/10.5937/bnhmb1912217T . .

TY  - JOUR
AU  - Urošević, Aleksandar
AU  - Popović, Miloš
AU  - Maričić, Marko
AU  - Pomorišac, Gordan
AU  - Petrović, Dragiša
AU  - Grabovac, David
AU  - Surla, Aleksandra
AU  - Medenica, Ivan
AU  - Avramović, Stefan
AU  - Golubović, Ana
PY  - 2019
UR  - http://www.acta-zoologica-bulgarica.eu/downloads/acta-zoologica-bulgarica/2019/71-2-247-251.pdf
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3483
AB  - This study presents an overview of localities where the alien pond slider Trachemys scripta (Thunberg in Schoepff, 1792) (Emydidiae) and its subspecies, T. s. elegans (Wied-Neuwied, 1839), T. s. scripta (Thunberg in Schoepff, 1792) and T. s. troostii (Holbrook, 1836), has been introduced in Serbia and shows indication of its possible reproduction in this country. The number of the new reports of these turtles is almost equal to the number of previously published findings. Most introductions as well as the cases of possible reproduction (nest-digging females and hatchlings found) have been concentrated around the large urban hubs - Belgrade and Novi Sad cities, where the largest populations have been detected. Generally, the water bodies in the lowland habitats (less than 100 m a.s.l.) were proven to be much more vulnerable to the introduction of alien turtles - more than 73% of cases of introduction were detected at low altitudes. Previously unreported "substitute" subspecies (T. s. scripta and T. s. troostii) can hybridise with the red-eared slider (T. s. elegans) and possibly increase its invasive potential. We suggest stricter enforcement of the legislation, together with raising public awareness of the problem, eradication of the established populations and building turtle sanctuaries as an ethical and ecologically safe alternative for disposal of unwanted pets.
PB  - Bulgarian Academy of Sciences
T2  - Acta Zoologica Bulgarica
T1  - New Data on the Spread of Trachemys scripta  (Thunberg in Schoepff, 1792) (Testudines: Emydidae) and its Subspecies in Serbia
IS  - 2
VL  - 71
SP  - 247
EP  - 251
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_3483
ER  - 

@article{
author = "Urošević, Aleksandar and Popović, Miloš and Maričić, Marko and Pomorišac, Gordan and Petrović, Dragiša and Grabovac, David and Surla, Aleksandra and Medenica, Ivan and Avramović, Stefan and Golubović, Ana",
year = "2019",
abstract = "This study presents an overview of localities where the alien pond slider Trachemys scripta (Thunberg in Schoepff, 1792) (Emydidiae) and its subspecies, T. s. elegans (Wied-Neuwied, 1839), T. s. scripta (Thunberg in Schoepff, 1792) and T. s. troostii (Holbrook, 1836), has been introduced in Serbia and shows indication of its possible reproduction in this country. The number of the new reports of these turtles is almost equal to the number of previously published findings. Most introductions as well as the cases of possible reproduction (nest-digging females and hatchlings found) have been concentrated around the large urban hubs - Belgrade and Novi Sad cities, where the largest populations have been detected. Generally, the water bodies in the lowland habitats (less than 100 m a.s.l.) were proven to be much more vulnerable to the introduction of alien turtles - more than 73% of cases of introduction were detected at low altitudes. Previously unreported "substitute" subspecies (T. s. scripta and T. s. troostii) can hybridise with the red-eared slider (T. s. elegans) and possibly increase its invasive potential. We suggest stricter enforcement of the legislation, together with raising public awareness of the problem, eradication of the established populations and building turtle sanctuaries as an ethical and ecologically safe alternative for disposal of unwanted pets.",
publisher = "Bulgarian Academy of Sciences",
journal = "Acta Zoologica Bulgarica",
title = "New Data on the Spread of Trachemys scripta  (Thunberg in Schoepff, 1792) (Testudines: Emydidae) and its Subspecies in Serbia",
number = "2",
volume = "71",
pages = "247-251",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_3483"
}

Urošević, A., Popović, M., Maričić, M., Pomorišac, G., Petrović, D., Grabovac, D., Surla, A., Medenica, I., Avramović, S.,& Golubović, A.. (2019). New Data on the Spread of Trachemys scripta  (Thunberg in Schoepff, 1792) (Testudines: Emydidae) and its Subspecies in Serbia. in Acta Zoologica Bulgarica
Bulgarian Academy of Sciences., 71(2), 247-251.
https://hdl.handle.net/21.15107/rcub_ibiss_3483

Urošević A, Popović M, Maričić M, Pomorišac G, Petrović D, Grabovac D, Surla A, Medenica I, Avramović S, Golubović A. New Data on the Spread of Trachemys scripta  (Thunberg in Schoepff, 1792) (Testudines: Emydidae) and its Subspecies in Serbia. in Acta Zoologica Bulgarica. 2019;71(2):247-251.
https://hdl.handle.net/21.15107/rcub_ibiss_3483 .

Urošević, Aleksandar, Popović, Miloš, Maričić, Marko, Pomorišac, Gordan, Petrović, Dragiša, Grabovac, David, Surla, Aleksandra, Medenica, Ivan, Avramović, Stefan, Golubović, Ana, "New Data on the Spread of Trachemys scripta  (Thunberg in Schoepff, 1792) (Testudines: Emydidae) and its Subspecies in Serbia" in Acta Zoologica Bulgarica, 71, no. 2 (2019):247-251,
https://hdl.handle.net/21.15107/rcub_ibiss_3483 .

TY  - JOUR
AU  - Golubović, Ana
AU  - Tomović, Ljiljana
AU  - Nikolić, Marko
AU  - Nikolić, Sonja
AU  - Anđelković, Marko
AU  - Arsovski, Dragan
AU  - Iković, Vuk
AU  - Gvozdenović, Slađana
AU  - Popović, Miloš
PY  - 2019
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0354-46641900034G
UR  - http://www.serbiosoc.org.rs/arch/index.php/abs/article/view/4163
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3566
AB  - Hermann’s tortoise (Testudo hermanni) is among the conservation priorities in the European Union. Consequently, it is included in Annexes II and IV of the EU Habitats Directive, Annex II of the Bern Convention, and Annex II of the CITES Convention. Hermann’s tortoise conservation programs compile insights on the threats affecting population viability, along with factors shaping the species’ distribution. Serbian populations of the eastern subspecies (Testudo hermanni boettgeri) seem numerous and therefore prosperous, but recent population viability analyses revealed that they are susceptible to rapid demographic changes and/or habitat destruction. This implies the need for effective population monitoring and protection, as well as mapping and preservation of suitable habitats. In this paper we summarized current knowledge about the geographic distribution of Hermann’s tortoise in Serbia and modeled its ecological niche. Our results corroborate and uphold the known species’ distribution in Serbia. Most suitable habitats are situated in the lowland areas of eastern, central and southern Serbia, under semi-open habitats, such as pastures and shrubs, broadleaf forests, and all successional stages in between. The results provided in this paper should be considered in the selection and shaping of NATURA 2000 sites in Serbia.
T2  - Archives of Biological Sciences
T1  - Distribution of Hermann’s tortoise across Serbia with implications for conservation
IS  - 3
VL  - 71
DO  - 10.2298/ABS190406034G
SP  - 509
EP  - 516
ER  - 

@article{
author = "Golubović, Ana and Tomović, Ljiljana and Nikolić, Marko and Nikolić, Sonja and Anđelković, Marko and Arsovski, Dragan and Iković, Vuk and Gvozdenović, Slađana and Popović, Miloš",
year = "2019",
abstract = "Hermann’s tortoise (Testudo hermanni) is among the conservation priorities in the European Union. Consequently, it is included in Annexes II and IV of the EU Habitats Directive, Annex II of the Bern Convention, and Annex II of the CITES Convention. Hermann’s tortoise conservation programs compile insights on the threats affecting population viability, along with factors shaping the species’ distribution. Serbian populations of the eastern subspecies (Testudo hermanni boettgeri) seem numerous and therefore prosperous, but recent population viability analyses revealed that they are susceptible to rapid demographic changes and/or habitat destruction. This implies the need for effective population monitoring and protection, as well as mapping and preservation of suitable habitats. In this paper we summarized current knowledge about the geographic distribution of Hermann’s tortoise in Serbia and modeled its ecological niche. Our results corroborate and uphold the known species’ distribution in Serbia. Most suitable habitats are situated in the lowland areas of eastern, central and southern Serbia, under semi-open habitats, such as pastures and shrubs, broadleaf forests, and all successional stages in between. The results provided in this paper should be considered in the selection and shaping of NATURA 2000 sites in Serbia.",
journal = "Archives of Biological Sciences",
title = "Distribution of Hermann’s tortoise across Serbia with implications for conservation",
number = "3",
volume = "71",
doi = "10.2298/ABS190406034G",
pages = "509-516"
}

Golubović, A., Tomović, L., Nikolić, M., Nikolić, S., Anđelković, M., Arsovski, D., Iković, V., Gvozdenović, S.,& Popović, M.. (2019). Distribution of Hermann’s tortoise across Serbia with implications for conservation. in Archives of Biological Sciences, 71(3), 509-516.
https://doi.org/10.2298/ABS190406034G

Golubović A, Tomović L, Nikolić M, Nikolić S, Anđelković M, Arsovski D, Iković V, Gvozdenović S, Popović M. Distribution of Hermann’s tortoise across Serbia with implications for conservation. in Archives of Biological Sciences. 2019;71(3):509-516.
doi:10.2298/ABS190406034G .

Golubović, Ana, Tomović, Ljiljana, Nikolić, Marko, Nikolić, Sonja, Anđelković, Marko, Arsovski, Dragan, Iković, Vuk, Gvozdenović, Slađana, Popović, Miloš, "Distribution of Hermann’s tortoise across Serbia with implications for conservation" in Archives of Biological Sciences, 71, no. 3 (2019):509-516,
https://doi.org/10.2298/ABS190406034G . .

TY  - JOUR
AU  - Urošević, Aleksandar
AU  - Tomović, Ljiljana
AU  - Krizmanić, Imre
AU  - Anđelković, Marko
AU  - Golubović, Ana
AU  - Maričić, Marko
AU  - Ajtić, Rastko
AU  - Ćorović, Jelena
AU  - Čubrić, Tijana
AU  - Tomašević-Kolarov, Nataša
AU  - Cvijanović, Milena
AU  - Vukov, Tanja
AU  - Jovanović, Bogdan
AU  - Vučić, Tijana
AU  - Ajduković, Maja
AU  - Tot, Ivan
AU  - Nadaždin, Bojana
AU  - Labus, Nenad
AU  - Džukić, Georg
PY  - 2018
UR  - http://www.nhmbeo.rs/издања/bulletin.65.html
UR  - http://www.nhmbeo.rs/upload/images/Glasnik/2018_a/Bulletin 2018-09.pdf
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3292
AB  - In this study, we present updated distribution data for all three brown frog species (Rana spp.) inhabiting Serbia. The data provided consists of newly collected field records and compiled data previously published in literature or via Internet. Of the three species found in Serbia, Rana dalmatina is the most widespread, present in all three altitudinal regions and all biogeographical regions. Rana graeca is confined to Mountain-valley altitudinal region in permanent fastflowing rivers or streams and it reaches its northern range boundaries in Serbia. Rana temporaria is the rarest of the three, with fragmented range restricted to the high mountains or few isolated lowland populations, and in the north-eastern Serbia, it is vicariant with R. graeca in canyons and gorges of montane rivers. The presence of Rana arvalis in Serbia is mentioned in literature but was not confirmed during the subsequent field surveys, so we consider it only as a potential species for the Serbian batrachofauna. The brown frog faunal composition of Serbia is identical to that of Albania, Bosnia and Herzegovina, Bulgaria, Greece, Macedonia and Montenegro, while it is somewhat different from that of Hungary and Romania and the most different from Croatia and Slovenia. Serbian brown frogs belong to European (R. temporaria) and South-European (R. dalmatina, R. graeca) chorotypes. All species of brown frogs present or potentially present in Serbia and their habitats are identified as great conservation priorities.
T2  - Bulletin of the Natural History Museum
T1  - Distribution and diversity of brown frogs (Rana spp., Anura, Amphibia) in Serbia
VL  - 11
DO  - 10.5937/bnhmb1306090V
SP  - 227
EP  - 245
ER  - 

@article{
author = "Urošević, Aleksandar and Tomović, Ljiljana and Krizmanić, Imre and Anđelković, Marko and Golubović, Ana and Maričić, Marko and Ajtić, Rastko and Ćorović, Jelena and Čubrić, Tijana and Tomašević-Kolarov, Nataša and Cvijanović, Milena and Vukov, Tanja and Jovanović, Bogdan and Vučić, Tijana and Ajduković, Maja and Tot, Ivan and Nadaždin, Bojana and Labus, Nenad and Džukić, Georg",
year = "2018",
abstract = "In this study, we present updated distribution data for all three brown frog species (Rana spp.) inhabiting Serbia. The data provided consists of newly collected field records and compiled data previously published in literature or via Internet. Of the three species found in Serbia, Rana dalmatina is the most widespread, present in all three altitudinal regions and all biogeographical regions. Rana graeca is confined to Mountain-valley altitudinal region in permanent fastflowing rivers or streams and it reaches its northern range boundaries in Serbia. Rana temporaria is the rarest of the three, with fragmented range restricted to the high mountains or few isolated lowland populations, and in the north-eastern Serbia, it is vicariant with R. graeca in canyons and gorges of montane rivers. The presence of Rana arvalis in Serbia is mentioned in literature but was not confirmed during the subsequent field surveys, so we consider it only as a potential species for the Serbian batrachofauna. The brown frog faunal composition of Serbia is identical to that of Albania, Bosnia and Herzegovina, Bulgaria, Greece, Macedonia and Montenegro, while it is somewhat different from that of Hungary and Romania and the most different from Croatia and Slovenia. Serbian brown frogs belong to European (R. temporaria) and South-European (R. dalmatina, R. graeca) chorotypes. All species of brown frogs present or potentially present in Serbia and their habitats are identified as great conservation priorities.",
journal = "Bulletin of the Natural History Museum",
title = "Distribution and diversity of brown frogs (Rana spp., Anura, Amphibia) in Serbia",
volume = "11",
doi = "10.5937/bnhmb1306090V",
pages = "227-245"
}

Urošević, A., Tomović, L., Krizmanić, I., Anđelković, M., Golubović, A., Maričić, M., Ajtić, R., Ćorović, J., Čubrić, T., Tomašević-Kolarov, N., Cvijanović, M., Vukov, T., Jovanović, B., Vučić, T., Ajduković, M., Tot, I., Nadaždin, B., Labus, N.,& Džukić, G.. (2018). Distribution and diversity of brown frogs (Rana spp., Anura, Amphibia) in Serbia. in Bulletin of the Natural History Museum, 11, 227-245.
https://doi.org/10.5937/bnhmb1306090V

Urošević A, Tomović L, Krizmanić I, Anđelković M, Golubović A, Maričić M, Ajtić R, Ćorović J, Čubrić T, Tomašević-Kolarov N, Cvijanović M, Vukov T, Jovanović B, Vučić T, Ajduković M, Tot I, Nadaždin B, Labus N, Džukić G. Distribution and diversity of brown frogs (Rana spp., Anura, Amphibia) in Serbia. in Bulletin of the Natural History Museum. 2018;11:227-245.
doi:10.5937/bnhmb1306090V .

Urošević, Aleksandar, Tomović, Ljiljana, Krizmanić, Imre, Anđelković, Marko, Golubović, Ana, Maričić, Marko, Ajtić, Rastko, Ćorović, Jelena, Čubrić, Tijana, Tomašević-Kolarov, Nataša, Cvijanović, Milena, Vukov, Tanja, Jovanović, Bogdan, Vučić, Tijana, Ajduković, Maja, Tot, Ivan, Nadaždin, Bojana, Labus, Nenad, Džukić, Georg, "Distribution and diversity of brown frogs (Rana spp., Anura, Amphibia) in Serbia" in Bulletin of the Natural History Museum, 11 (2018):227-245,
https://doi.org/10.5937/bnhmb1306090V . .

TY  - JOUR
AU  - Golubović, Ana
AU  - Anđelković, Marko
AU  - Arsovski, Dragan
AU  - Bonnet, Xavier
AU  - Tomović, Ljiljana
PY  - 2017
UR  - http://link.springer.com/10.1007/s00265-017-2318-0
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/2759
AB  - Physical limits of speed performances impose strong selective pressures on animals, influencing important functions such as predator avoidance and foraging success. Armoured herbivorous species such as tortoises represent a peculiar case: features that optimise encounter rate during reproduction, the ability to reach favourable sites for thermoregulation and resting, foraging or nesting sites may be more important than running speed. To explore this issue, we measured three characteristics related to travelling ability but that are independent of running speed: (1) muscular strength, (2) time needed for overturning and (3) jumping from a high step as proxies of the ability to overcome various obstacles. Additionally, reaction times in tortoises placed in a normal or overturned position were measured as a proxy of antipredator response. More than 400 adult Hermann’s tortoises from six populations were tested in the field during two seasons. Measures of travelling ability and antipredator response varied markedly among populations, and thus with environmental characteristics such as habitat type, terrain ruggedness and presence of predators. Tortoises from rugged and hot habitats (e.g. Mediterranean macchia) were the most successful and the fastest to accomplish the tests. Overturned tortoises were more reluctant to start moving compared to those in normal position, but this effect was absent in the two localities free from predators. Sex and season had limited effect on the measured performances. Overall, locomotor features essentially varied with environmental constraints. Future environmental studies should explore whether the observed differences among populations are linked to genetic adaptation or phenotypic plasticity. Significance statement: Locomotor performances crucially influence habitat use, foraging and reproductive success, thus directly affecting individual fitness. Although running speed is often considered as a main indicator of agility, in armoured terrestrial vertebrates some other agility components might be more important. Heavy, rigid armour imposes trade-off between protection of soft body parts and locomotor performances and consequently habitat use. This study compiles three tests of locomotor performance which might be important for overcoming various obstacles present in mosaic habitats of tortoises. Testing adult Hermann’s tortoises from six populations with various habitat characteristics, we found significant inter-population differences. The ability of tortoises to complete the tests positively correlates with climatic conditions and topography of their habitats. Additionally, presence of predators in the habitats dramatically affects tortoise’s antipredator behaviour. Measured locomotor performances and antipredator behaviour showed surprisingly low level of sexual dimorphism.
T2  - Behavioral Ecology and Sociobiology
T1  - Locomotor performances reflect habitat constraints in an armoured species
IS  - 6
VL  - 71
DO  - 10.1007/s00265-017-2318-0
SP  - 93
EP  - 93
ER  - 

@article{
author = "Golubović, Ana and Anđelković, Marko and Arsovski, Dragan and Bonnet, Xavier and Tomović, Ljiljana",
year = "2017",
abstract = "Physical limits of speed performances impose strong selective pressures on animals, influencing important functions such as predator avoidance and foraging success. Armoured herbivorous species such as tortoises represent a peculiar case: features that optimise encounter rate during reproduction, the ability to reach favourable sites for thermoregulation and resting, foraging or nesting sites may be more important than running speed. To explore this issue, we measured three characteristics related to travelling ability but that are independent of running speed: (1) muscular strength, (2) time needed for overturning and (3) jumping from a high step as proxies of the ability to overcome various obstacles. Additionally, reaction times in tortoises placed in a normal or overturned position were measured as a proxy of antipredator response. More than 400 adult Hermann’s tortoises from six populations were tested in the field during two seasons. Measures of travelling ability and antipredator response varied markedly among populations, and thus with environmental characteristics such as habitat type, terrain ruggedness and presence of predators. Tortoises from rugged and hot habitats (e.g. Mediterranean macchia) were the most successful and the fastest to accomplish the tests. Overturned tortoises were more reluctant to start moving compared to those in normal position, but this effect was absent in the two localities free from predators. Sex and season had limited effect on the measured performances. Overall, locomotor features essentially varied with environmental constraints. Future environmental studies should explore whether the observed differences among populations are linked to genetic adaptation or phenotypic plasticity. Significance statement: Locomotor performances crucially influence habitat use, foraging and reproductive success, thus directly affecting individual fitness. Although running speed is often considered as a main indicator of agility, in armoured terrestrial vertebrates some other agility components might be more important. Heavy, rigid armour imposes trade-off between protection of soft body parts and locomotor performances and consequently habitat use. This study compiles three tests of locomotor performance which might be important for overcoming various obstacles present in mosaic habitats of tortoises. Testing adult Hermann’s tortoises from six populations with various habitat characteristics, we found significant inter-population differences. The ability of tortoises to complete the tests positively correlates with climatic conditions and topography of their habitats. Additionally, presence of predators in the habitats dramatically affects tortoise’s antipredator behaviour. Measured locomotor performances and antipredator behaviour showed surprisingly low level of sexual dimorphism.",
journal = "Behavioral Ecology and Sociobiology",
title = "Locomotor performances reflect habitat constraints in an armoured species",
number = "6",
volume = "71",
doi = "10.1007/s00265-017-2318-0",
pages = "93-93"
}

Golubović, A., Anđelković, M., Arsovski, D., Bonnet, X.,& Tomović, L.. (2017). Locomotor performances reflect habitat constraints in an armoured species. in Behavioral Ecology and Sociobiology, 71(6), 93-93.
https://doi.org/10.1007/s00265-017-2318-0

Golubović A, Anđelković M, Arsovski D, Bonnet X, Tomović L. Locomotor performances reflect habitat constraints in an armoured species. in Behavioral Ecology and Sociobiology. 2017;71(6):93-93.
doi:10.1007/s00265-017-2318-0 .

Golubović, Ana, Anđelković, Marko, Arsovski, Dragan, Bonnet, Xavier, Tomović, Ljiljana, "Locomotor performances reflect habitat constraints in an armoured species" in Behavioral Ecology and Sociobiology, 71, no. 6 (2017):93-93,
https://doi.org/10.1007/s00265-017-2318-0 . .

TY  - CONF
AU  - Anđelković, Marko
AU  - Urošević, Aleksandar
AU  - Golubović, Ana
AU  - Đorđević, Sonja
AU  - Tomović, Ljiljana
PY  - 2016
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5212
AB  - We tested intra-population morphological variability and the ontogeny of sexual dimorphism in a sample of 78 individuals of Lacerta agilis (Linnaeus, 1758) from the Bistra Mountain in the Former Yugoslav Republic of Macedonia. The effect of predation was also assessed by examining the
animals’ tails. In 43.8% of individuals of all age classes tails were missing or regenerated, which
means that lizards are subjected to high predation at this locality. After measuring, marking and photographing, all animals were released into their natural habitat. The set of 17 linear measurements and body mass were taken for each individual, and snout-vent length was taken as a standard descriptor of body size. Among adults, significant sexual dimorphism was recorded in body size, head dimensions and distance between front and hind limbs, while sexual dimorphism was not
observed in juveniles. Females had greater body size and distance between front and hind limbs, while males had proportionately larger heads. Static allometric trajectories of adult females and males were assessed, and they diverged only for head and mouth width. Divergence of ontogenetic allometric trajectories was significant for all measurements except the dimensions of the fourth toe
on the front and hind limbs. Sexual dimorphism pattern in sand lizards from Bistra Mountain was in
concordance with previous studies. Larger adult female body size could be interpreted as a result of
sexual selection for fecundity, while larger male heads could result from selection for greater bite
force in two ways: intra-sexual selection (between males) in relation to territory defense, and inter-
sexual in relation to copulatory bites. Sexual dimorphism was not significant among juveniles: adults apparently attain a different morphology through diverging allometric trajectories during growth.
Further studies should include populations of sand lizards from different habitat types to further assess patterns of intra-specific morphological variability.
PB  - Nicosia: Herpetological Society of Cyprus
C3  - Book of Abstracts: 9th Symposium on the Lacertids of the Mediterranean Basin and 1st Symposium on Mediterranean Lizards; 2016 Jun  20-23; Limassol, Cyprus
T1  - Sexual dimorphism and allometry of sand lizards from Bistra mt., FYR Macedonia – preliminary results
SP  - 45
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5212
ER  - 

@conference{
author = "Anđelković, Marko and Urošević, Aleksandar and Golubović, Ana and Đorđević, Sonja and Tomović, Ljiljana",
year = "2016",
abstract = "We tested intra-population morphological variability and the ontogeny of sexual dimorphism in a sample of 78 individuals of Lacerta agilis (Linnaeus, 1758) from the Bistra Mountain in the Former Yugoslav Republic of Macedonia. The effect of predation was also assessed by examining the
animals’ tails. In 43.8% of individuals of all age classes tails were missing or regenerated, which
means that lizards are subjected to high predation at this locality. After measuring, marking and photographing, all animals were released into their natural habitat. The set of 17 linear measurements and body mass were taken for each individual, and snout-vent length was taken as a standard descriptor of body size. Among adults, significant sexual dimorphism was recorded in body size, head dimensions and distance between front and hind limbs, while sexual dimorphism was not
observed in juveniles. Females had greater body size and distance between front and hind limbs, while males had proportionately larger heads. Static allometric trajectories of adult females and males were assessed, and they diverged only for head and mouth width. Divergence of ontogenetic allometric trajectories was significant for all measurements except the dimensions of the fourth toe
on the front and hind limbs. Sexual dimorphism pattern in sand lizards from Bistra Mountain was in
concordance with previous studies. Larger adult female body size could be interpreted as a result of
sexual selection for fecundity, while larger male heads could result from selection for greater bite
force in two ways: intra-sexual selection (between males) in relation to territory defense, and inter-
sexual in relation to copulatory bites. Sexual dimorphism was not significant among juveniles: adults apparently attain a different morphology through diverging allometric trajectories during growth.
Further studies should include populations of sand lizards from different habitat types to further assess patterns of intra-specific morphological variability.",
publisher = "Nicosia: Herpetological Society of Cyprus",
journal = "Book of Abstracts: 9th Symposium on the Lacertids of the Mediterranean Basin and 1st Symposium on Mediterranean Lizards; 2016 Jun  20-23; Limassol, Cyprus",
title = "Sexual dimorphism and allometry of sand lizards from Bistra mt., FYR Macedonia – preliminary results",
pages = "45",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5212"
}

Anđelković, M., Urošević, A., Golubović, A., Đorđević, S.,& Tomović, L.. (2016). Sexual dimorphism and allometry of sand lizards from Bistra mt., FYR Macedonia – preliminary results. in Book of Abstracts: 9th Symposium on the Lacertids of the Mediterranean Basin and 1st Symposium on Mediterranean Lizards; 2016 Jun  20-23; Limassol, Cyprus
Nicosia: Herpetological Society of Cyprus., 45.
https://hdl.handle.net/21.15107/rcub_ibiss_5212

Anđelković M, Urošević A, Golubović A, Đorđević S, Tomović L. Sexual dimorphism and allometry of sand lizards from Bistra mt., FYR Macedonia – preliminary results. in Book of Abstracts: 9th Symposium on the Lacertids of the Mediterranean Basin and 1st Symposium on Mediterranean Lizards; 2016 Jun  20-23; Limassol, Cyprus. 2016;:45.
https://hdl.handle.net/21.15107/rcub_ibiss_5212 .

Anđelković, Marko, Urošević, Aleksandar, Golubović, Ana, Đorđević, Sonja, Tomović, Ljiljana, "Sexual dimorphism and allometry of sand lizards from Bistra mt., FYR Macedonia – preliminary results" in Book of Abstracts: 9th Symposium on the Lacertids of the Mediterranean Basin and 1st Symposium on Mediterranean Lizards; 2016 Jun  20-23; Limassol, Cyprus (2016):45,
https://hdl.handle.net/21.15107/rcub_ibiss_5212 .

TY  - JOUR
AU  - Urošević, Aleksandar
AU  - Ljubisavljević, Katarina
AU  - Tomović, Ljiljana
AU  - Krizmanić, Imre
AU  - Ajtić, Rastko
AU  - Simović, Aleksandar
AU  - Labus, Nenad
AU  - Jović, Danko
AU  - Golubović, Ana
AU  - Anđelković, Marko
AU  - Džukić, Georg
PY  - 2015
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5206
AB  - In this study, we present updated distributional data for all Serbian lacertids, having taken into account the available previously published information, and the so far unpublished authors’ field records and evidence from other sources. According to our current knowledge, eight lacertid species inhabit Serbia. Analysis of lacertid diversity within the country showed that biogeographic regions with highest species diversity are Metohija (eight species) and Kosovo (seven species). Regions in Serbia are mutually similar concerning lacertid faunas (average Bray-Curtis dissimilarity index is 0.82). Comparative analysis of lacertid faunas among all Balkan countries showed that Serbian lacertid fauna is the most similar to those of Albania and the FYR of Macedonia, and then to faunas of Romania and Bulgaria. Zoogeographic analysis showed that Serbian lacertids belong to three distinct chorotypes, with the East-Mediterranean being the richest (four species). Generally, diversity of lacertids in Serbia is most strongly determined by topographic diversity, habitat heterogeneity, and climatic peculiarities, with the inflow of the sub-Mediterranean climate along several river valleys in the south being especially important. This paper is intended to serve as a basis for further research, since data on distribution of lacertid species in Serbia are far from complete, with large distributional gaps of recorded species and with unconfirmed presence of two species.
PB  - Centre for Biodiversity of Montenegro
T2  - Ecologica Montenegrina
T1  - Contribution to the knowledge of distribution and diversity of lacertid lizards in Serbia
IS  - 3
VL  - 2
SP  - 197
EP  - 227
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5206
ER  - 

@article{
author = "Urošević, Aleksandar and Ljubisavljević, Katarina and Tomović, Ljiljana and Krizmanić, Imre and Ajtić, Rastko and Simović, Aleksandar and Labus, Nenad and Jović, Danko and Golubović, Ana and Anđelković, Marko and Džukić, Georg",
year = "2015",
abstract = "In this study, we present updated distributional data for all Serbian lacertids, having taken into account the available previously published information, and the so far unpublished authors’ field records and evidence from other sources. According to our current knowledge, eight lacertid species inhabit Serbia. Analysis of lacertid diversity within the country showed that biogeographic regions with highest species diversity are Metohija (eight species) and Kosovo (seven species). Regions in Serbia are mutually similar concerning lacertid faunas (average Bray-Curtis dissimilarity index is 0.82). Comparative analysis of lacertid faunas among all Balkan countries showed that Serbian lacertid fauna is the most similar to those of Albania and the FYR of Macedonia, and then to faunas of Romania and Bulgaria. Zoogeographic analysis showed that Serbian lacertids belong to three distinct chorotypes, with the East-Mediterranean being the richest (four species). Generally, diversity of lacertids in Serbia is most strongly determined by topographic diversity, habitat heterogeneity, and climatic peculiarities, with the inflow of the sub-Mediterranean climate along several river valleys in the south being especially important. This paper is intended to serve as a basis for further research, since data on distribution of lacertid species in Serbia are far from complete, with large distributional gaps of recorded species and with unconfirmed presence of two species.",
publisher = "Centre for Biodiversity of Montenegro",
journal = "Ecologica Montenegrina",
title = "Contribution to the knowledge of distribution and diversity of lacertid lizards in Serbia",
number = "3",
volume = "2",
pages = "197-227",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5206"
}

Urošević, A., Ljubisavljević, K., Tomović, L., Krizmanić, I., Ajtić, R., Simović, A., Labus, N., Jović, D., Golubović, A., Anđelković, M.,& Džukić, G.. (2015). Contribution to the knowledge of distribution and diversity of lacertid lizards in Serbia. in Ecologica Montenegrina
Centre for Biodiversity of Montenegro., 2(3), 197-227.
https://hdl.handle.net/21.15107/rcub_ibiss_5206

Urošević A, Ljubisavljević K, Tomović L, Krizmanić I, Ajtić R, Simović A, Labus N, Jović D, Golubović A, Anđelković M, Džukić G. Contribution to the knowledge of distribution and diversity of lacertid lizards in Serbia. in Ecologica Montenegrina. 2015;2(3):197-227.
https://hdl.handle.net/21.15107/rcub_ibiss_5206 .

Urošević, Aleksandar, Ljubisavljević, Katarina, Tomović, Ljiljana, Krizmanić, Imre, Ajtić, Rastko, Simović, Aleksandar, Labus, Nenad, Jović, Danko, Golubović, Ana, Anđelković, Marko, Džukić, Georg, "Contribution to the knowledge of distribution and diversity of lacertid lizards in Serbia" in Ecologica Montenegrina, 2, no. 3 (2015):197-227,
https://hdl.handle.net/21.15107/rcub_ibiss_5206 .

TY  - JOUR
AU  - Tomović, Ljiljana
AU  - Urošević, Aleksandar
AU  - Ajtić, Rastko
AU  - Krizmanić, Imre
AU  - Simović, Aleksandar
AU  - Labus, Nenad
AU  - Jović, Danko
AU  - Krstić, Milivoj
AU  - Đorđević, Sonja
AU  - Anđelković, Marko
AU  - Golubović, Ana
AU  - Džukić, Georg
PY  - 2015
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5205
AB  - Detailed distribution pattern of colubrid snakes in Serbia is still inadequately described, despite the long historical study. In this paper, we provide accurate distribution of seven species, with previously published and newly accumulated faunistic records compiled. Comparative analysis of faunas among all Balkan countries showed that Serbian colubrid fauna is among the most distinct (together with faunas of Slovenia and Romania), due to small number of species. Zoogeographic analysis showed high chorotype diversity of Serbian colubrids: seven species belong to six chorotypes. South-eastern Serbia (Pčinja River valley) is characterized by the presence of all colubrid species inhabiting our country, and deserves the highest conservation status at the national level. This study should provide the basis for further, more comprehensive faunistic research, as the data on distribution of colubrid species in our country are far from complete, with large distribution “gaps”, especially in northern and central parts of Serbia.
PB  - Centre for Biodiversity of Montenegro
T2  - Ecologica Montenegrina
T1  - Contribution to the knowledge of distribution of Colubrid snakes in Serbia
IS  - 3
VL  - 2
SP  - 162
EP  - 186
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5205
ER  - 

@article{
author = "Tomović, Ljiljana and Urošević, Aleksandar and Ajtić, Rastko and Krizmanić, Imre and Simović, Aleksandar and Labus, Nenad and Jović, Danko and Krstić, Milivoj and Đorđević, Sonja and Anđelković, Marko and Golubović, Ana and Džukić, Georg",
year = "2015",
abstract = "Detailed distribution pattern of colubrid snakes in Serbia is still inadequately described, despite the long historical study. In this paper, we provide accurate distribution of seven species, with previously published and newly accumulated faunistic records compiled. Comparative analysis of faunas among all Balkan countries showed that Serbian colubrid fauna is among the most distinct (together with faunas of Slovenia and Romania), due to small number of species. Zoogeographic analysis showed high chorotype diversity of Serbian colubrids: seven species belong to six chorotypes. South-eastern Serbia (Pčinja River valley) is characterized by the presence of all colubrid species inhabiting our country, and deserves the highest conservation status at the national level. This study should provide the basis for further, more comprehensive faunistic research, as the data on distribution of colubrid species in our country are far from complete, with large distribution “gaps”, especially in northern and central parts of Serbia.",
publisher = "Centre for Biodiversity of Montenegro",
journal = "Ecologica Montenegrina",
title = "Contribution to the knowledge of distribution of Colubrid snakes in Serbia",
number = "3",
volume = "2",
pages = "162-186",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5205"
}

Tomović, L., Urošević, A., Ajtić, R., Krizmanić, I., Simović, A., Labus, N., Jović, D., Krstić, M., Đorđević, S., Anđelković, M., Golubović, A.,& Džukić, G.. (2015). Contribution to the knowledge of distribution of Colubrid snakes in Serbia. in Ecologica Montenegrina
Centre for Biodiversity of Montenegro., 2(3), 162-186.
https://hdl.handle.net/21.15107/rcub_ibiss_5205

Tomović L, Urošević A, Ajtić R, Krizmanić I, Simović A, Labus N, Jović D, Krstić M, Đorđević S, Anđelković M, Golubović A, Džukić G. Contribution to the knowledge of distribution of Colubrid snakes in Serbia. in Ecologica Montenegrina. 2015;2(3):162-186.
https://hdl.handle.net/21.15107/rcub_ibiss_5205 .

Tomović, Ljiljana, Urošević, Aleksandar, Ajtić, Rastko, Krizmanić, Imre, Simović, Aleksandar, Labus, Nenad, Jović, Danko, Krstić, Milivoj, Đorđević, Sonja, Anđelković, Marko, Golubović, Ana, Džukić, Georg, "Contribution to the knowledge of distribution of Colubrid snakes in Serbia" in Ecologica Montenegrina, 2, no. 3 (2015):162-186,
https://hdl.handle.net/21.15107/rcub_ibiss_5205 .

TY  - JOUR
AU  - Ljubisavljević, Katarina
AU  - Tomović, Ljiljana
AU  - Simović, Aleksandar
AU  - Krizmanić, Imre
AU  - Ajtić, Rastko
AU  - Jović, Danko
AU  - Urošević, Aleksandar
AU  - Labus, Nenad
AU  - Đorđević, Sonja
AU  - Golubović, Ana
AU  - Anđelković, Marko
AU  - Džukić, Georg V.
PY  - 2015
UR  - https://www.biotaxa.org/em/article/view/em.2015.2.29
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5204
AB  - The distribution of Ablepharus kitaibelii (Snake-eyed skink) in Serbia was reviewed, based on the collection of 183 records comprised of the authors’ unpublished data, observations of colleague researchers and of literature data. Roughly 68% of these records have not been published previously. Apparent distribution gaps in western and southern parts of the country were largely filled in by new findings. The absence of the Snake-eyed skink in the northern parts of our country is most likely caused by large-scale alteration and destruction of suitable habitats. Presented data provide the basis for further research and conservation assessments of this species.
PB  - Centre for Biodiversity of Montenegro
T2  - Ecologica Montenegrina
T1  - Filling in the gaps in distribution data of the Snake-eyed skink Ablepharus kitaibelii Bibron and Bory, 1833 (Squamata: Scincidae) in Serbia
IS  - 3
VL  - 2
SP  - 247
EP  - 254
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5204
ER  - 

@article{
author = "Ljubisavljević, Katarina and Tomović, Ljiljana and Simović, Aleksandar and Krizmanić, Imre and Ajtić, Rastko and Jović, Danko and Urošević, Aleksandar and Labus, Nenad and Đorđević, Sonja and Golubović, Ana and Anđelković, Marko and Džukić, Georg V.",
year = "2015",
abstract = "The distribution of Ablepharus kitaibelii (Snake-eyed skink) in Serbia was reviewed, based on the collection of 183 records comprised of the authors’ unpublished data, observations of colleague researchers and of literature data. Roughly 68% of these records have not been published previously. Apparent distribution gaps in western and southern parts of the country were largely filled in by new findings. The absence of the Snake-eyed skink in the northern parts of our country is most likely caused by large-scale alteration and destruction of suitable habitats. Presented data provide the basis for further research and conservation assessments of this species.",
publisher = "Centre for Biodiversity of Montenegro",
journal = "Ecologica Montenegrina",
title = "Filling in the gaps in distribution data of the Snake-eyed skink Ablepharus kitaibelii Bibron and Bory, 1833 (Squamata: Scincidae) in Serbia",
number = "3",
volume = "2",
pages = "247-254",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5204"
}

Ljubisavljević, K., Tomović, L., Simović, A., Krizmanić, I., Ajtić, R., Jović, D., Urošević, A., Labus, N., Đorđević, S., Golubović, A., Anđelković, M.,& Džukić, G. V.. (2015). Filling in the gaps in distribution data of the Snake-eyed skink Ablepharus kitaibelii Bibron and Bory, 1833 (Squamata: Scincidae) in Serbia. in Ecologica Montenegrina
Centre for Biodiversity of Montenegro., 2(3), 247-254.
https://hdl.handle.net/21.15107/rcub_ibiss_5204

Ljubisavljević K, Tomović L, Simović A, Krizmanić I, Ajtić R, Jović D, Urošević A, Labus N, Đorđević S, Golubović A, Anđelković M, Džukić GV. Filling in the gaps in distribution data of the Snake-eyed skink Ablepharus kitaibelii Bibron and Bory, 1833 (Squamata: Scincidae) in Serbia. in Ecologica Montenegrina. 2015;2(3):247-254.
https://hdl.handle.net/21.15107/rcub_ibiss_5204 .

Ljubisavljević, Katarina, Tomović, Ljiljana, Simović, Aleksandar, Krizmanić, Imre, Ajtić, Rastko, Jović, Danko, Urošević, Aleksandar, Labus, Nenad, Đorđević, Sonja, Golubović, Ana, Anđelković, Marko, Džukić, Georg V., "Filling in the gaps in distribution data of the Snake-eyed skink Ablepharus kitaibelii Bibron and Bory, 1833 (Squamata: Scincidae) in Serbia" in Ecologica Montenegrina, 2, no. 3 (2015):247-254,
https://hdl.handle.net/21.15107/rcub_ibiss_5204 .

TY  - JOUR
AU  - Arsovski, Dragan
AU  - Ajtić, Rastko
AU  - Golubović, Ana
AU  - Trajčeska, Ivona
AU  - Đorđević, Sonja
AU  - Anđelković, Marko
AU  - Bonnet, Xavier
AU  - Tomović, Ljiljana
PY  - 2014
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5151
PB  - Centre for Biodiversity of Montenegro
T2  - Ecologica Montenegrina
T1  - Two fangs good, a hundred legs better: juvenile viper devoured by an adult centipede it had ingested
VL  - 1
SP  - 6
EP  - 8
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5151
ER  - 

@article{
author = "Arsovski, Dragan and Ajtić, Rastko and Golubović, Ana and Trajčeska, Ivona and Đorđević, Sonja and Anđelković, Marko and Bonnet, Xavier and Tomović, Ljiljana",
year = "2014",
publisher = "Centre for Biodiversity of Montenegro",
journal = "Ecologica Montenegrina",
title = "Two fangs good, a hundred legs better: juvenile viper devoured by an adult centipede it had ingested",
volume = "1",
pages = "6-8",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5151"
}

Arsovski, D., Ajtić, R., Golubović, A., Trajčeska, I., Đorđević, S., Anđelković, M., Bonnet, X.,& Tomović, L.. (2014). Two fangs good, a hundred legs better: juvenile viper devoured by an adult centipede it had ingested. in Ecologica Montenegrina
Centre for Biodiversity of Montenegro., 1, 6-8.
https://hdl.handle.net/21.15107/rcub_ibiss_5151

Arsovski D, Ajtić R, Golubović A, Trajčeska I, Đorđević S, Anđelković M, Bonnet X, Tomović L. Two fangs good, a hundred legs better: juvenile viper devoured by an adult centipede it had ingested. in Ecologica Montenegrina. 2014;1:6-8.
https://hdl.handle.net/21.15107/rcub_ibiss_5151 .

Arsovski, Dragan, Ajtić, Rastko, Golubović, Ana, Trajčeska, Ivona, Đorđević, Sonja, Anđelković, Marko, Bonnet, Xavier, Tomović, Ljiljana, "Two fangs good, a hundred legs better: juvenile viper devoured by an adult centipede it had ingested" in Ecologica Montenegrina, 1 (2014):6-8,
https://hdl.handle.net/21.15107/rcub_ibiss_5151 .

TY  - CONF
AU  - Golubović, Ana
AU  - Anđelković, Marko
AU  - Arsovski, Dragan
AU  - Đorđević, Sonja
AU  - Iković, Vuk
AU  - Vujović, Ana
AU  - Bonnet, Xavier
AU  - Tomović, Ljiljana
PY  - 2013
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5210
AB  - During 200 million years of evolutionary history, all chelonians are characterized by a well
developed, protective shell. Conserved during major evolutionary transitions (e.g. return to
the sea), shell likely provides substantial selective advantages. Conversely, heavy and rigid
shell poses a set of serious motion limitations, especially in terrestrial species during displacements
in rugged and complex environments. We examined how terrestrial tortoises overcome
various obstacles in their natural habitat. We compared several Balkan populations of
Hermann’s tortoises by placing individuals (app. 1100) in three types of challenging positions
to measure their performances.
Righting ability: males were more successful in righting themselves than females. Body size
influenced righting abilities only in females: smaller ones were more efficient. Individuals
with markedly domed carapace (increased instability) and shorter bridges (enlarging space for
leg movements) were more successful to right themselves.
Boldness to cross a steep step: animals from rugged environment were more prone to jump
from 50 cm high obstacle then ones from the flat habitat. Genders had similar success,
but adults showed more boldness to leap off the hedge than juveniles.
Disentangling themselves form thick vegetation: residents of Mediterranean macchia displayed
moderate pulling force and released themselves quickly by backwards movements.
Tortoises living in herbaceous habitats moved forward, deployed strong pulling force, ripping
on the substrate and were far less successful.
Individuals from different habitats, sex and age classes exhibited divergent and apparently
appropriate traits and strategies to overcome each locomotory challenge. We further speculate
that behavioural responses, as a response to morphological constraints, are shaped by
experience. These results may have conservation value and assist in improving translocation
strategies for endangered tortoise populations.
PB  - University of Pannonia
C3  - Programme and Abstracts: 17th European Congress of Herpetology; 2013 Aug 22-27; Veszprém, Hungary
T1  - Tortoise’s shell—a blessing and a curse. How tortoises cope with various obstacles?
SP  - 115
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5210
ER  - 

@conference{
author = "Golubović, Ana and Anđelković, Marko and Arsovski, Dragan and Đorđević, Sonja and Iković, Vuk and Vujović, Ana and Bonnet, Xavier and Tomović, Ljiljana",
year = "2013",
abstract = "During 200 million years of evolutionary history, all chelonians are characterized by a well
developed, protective shell. Conserved during major evolutionary transitions (e.g. return to
the sea), shell likely provides substantial selective advantages. Conversely, heavy and rigid
shell poses a set of serious motion limitations, especially in terrestrial species during displacements
in rugged and complex environments. We examined how terrestrial tortoises overcome
various obstacles in their natural habitat. We compared several Balkan populations of
Hermann’s tortoises by placing individuals (app. 1100) in three types of challenging positions
to measure their performances.
Righting ability: males were more successful in righting themselves than females. Body size
influenced righting abilities only in females: smaller ones were more efficient. Individuals
with markedly domed carapace (increased instability) and shorter bridges (enlarging space for
leg movements) were more successful to right themselves.
Boldness to cross a steep step: animals from rugged environment were more prone to jump
from 50 cm high obstacle then ones from the flat habitat. Genders had similar success,
but adults showed more boldness to leap off the hedge than juveniles.
Disentangling themselves form thick vegetation: residents of Mediterranean macchia displayed
moderate pulling force and released themselves quickly by backwards movements.
Tortoises living in herbaceous habitats moved forward, deployed strong pulling force, ripping
on the substrate and were far less successful.
Individuals from different habitats, sex and age classes exhibited divergent and apparently
appropriate traits and strategies to overcome each locomotory challenge. We further speculate
that behavioural responses, as a response to morphological constraints, are shaped by
experience. These results may have conservation value and assist in improving translocation
strategies for endangered tortoise populations.",
publisher = "University of Pannonia",
journal = "Programme and Abstracts: 17th European Congress of Herpetology; 2013 Aug 22-27; Veszprém, Hungary",
title = "Tortoise’s shell—a blessing and a curse. How tortoises cope with various obstacles?",
pages = "115",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5210"
}

Golubović, A., Anđelković, M., Arsovski, D., Đorđević, S., Iković, V., Vujović, A., Bonnet, X.,& Tomović, L.. (2013). Tortoise’s shell—a blessing and a curse. How tortoises cope with various obstacles?. in Programme and Abstracts: 17th European Congress of Herpetology; 2013 Aug 22-27; Veszprém, Hungary
University of Pannonia., 115.
https://hdl.handle.net/21.15107/rcub_ibiss_5210

Golubović A, Anđelković M, Arsovski D, Đorđević S, Iković V, Vujović A, Bonnet X, Tomović L. Tortoise’s shell—a blessing and a curse. How tortoises cope with various obstacles?. in Programme and Abstracts: 17th European Congress of Herpetology; 2013 Aug 22-27; Veszprém, Hungary. 2013;:115.
https://hdl.handle.net/21.15107/rcub_ibiss_5210 .

Golubović, Ana, Anđelković, Marko, Arsovski, Dragan, Đorđević, Sonja, Iković, Vuk, Vujović, Ana, Bonnet, Xavier, Tomović, Ljiljana, "Tortoise’s shell—a blessing and a curse. How tortoises cope with various obstacles?" in Programme and Abstracts: 17th European Congress of Herpetology; 2013 Aug 22-27; Veszprém, Hungary (2013):115,
https://hdl.handle.net/21.15107/rcub_ibiss_5210 .

TY  - JOUR
AU  - Ajtić, Rastko D
AU  - Tomović, Ljiljana M
AU  - Sterijovski, Bogoljub
AU  - Crnobrnja-Isailović, Jelka M.
AU  - Đorđević, Sonja Z
AU  - Đurakić, Marko R
AU  - Golubović, Ana
AU  - Simović, Aleksandar
AU  - Arsovski, Dragan
AU  - Anđelković, Marko
AU  - Krstić, Milivoj
AU  - Sukalo, Goran
AU  - Gvozdenović, Slađana
AU  - Aidam, Aurelie
AU  - Michel, Catherine Louise
AU  - Ballouard, Jean-Marie
AU  - Bonnet, Xavier
PY  - 2013
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/1055
AB  - A population of dice snakes (Natrix tessellate) monitored since 2008 in a small island (18 ha, 850 m a.s.l., FYR of Macedonia) revealed unforeseen patterns for snakes living in temperate climates. More than 5000 individuals have been marked and the density is one of the highest ever recorded (>500 resident snakes per hectare). Reproductive and mortality rates are elevated, suggesting a high population turnover. These traits evoke a tropical rather than a temperate-climate ophidian demographic system. The population is highly polymorphic, three colour morphs (dotted, grey, and black) are observed in both sexes and each morph is represented by large numbers of individuals. This polymorphism pattern was not previously documented in snakes. Data obtained for other life history traits (e.g. body size, size at maturity, clutch size, diet, predation) markedly diverged in comparison to available information. Overall, our results reinforce the notion that the strong inter-population variability (often mediated by phenotypic plasticity) of snakes should be taken into account over large geographic scales; otherwise attempts to derive general patterns may well be strongly biased. (C) 2012 Elsevier GmbH. All rights reserved.
T2  - Zoologischer Anzeiger
T1  - Unexpected life history traits in a very dense population of dice snakes
IS  - 3
VL  - 252
SP  - 103
EP  - 358
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_1055
ER  - 

@article{
author = "Ajtić, Rastko D and Tomović, Ljiljana M and Sterijovski, Bogoljub and Crnobrnja-Isailović, Jelka M. and Đorđević, Sonja Z and Đurakić, Marko R and Golubović, Ana and Simović, Aleksandar and Arsovski, Dragan and Anđelković, Marko and Krstić, Milivoj and Sukalo, Goran and Gvozdenović, Slađana and Aidam, Aurelie and Michel, Catherine Louise and Ballouard, Jean-Marie and Bonnet, Xavier",
year = "2013",
abstract = "A population of dice snakes (Natrix tessellate) monitored since 2008 in a small island (18 ha, 850 m a.s.l., FYR of Macedonia) revealed unforeseen patterns for snakes living in temperate climates. More than 5000 individuals have been marked and the density is one of the highest ever recorded (>500 resident snakes per hectare). Reproductive and mortality rates are elevated, suggesting a high population turnover. These traits evoke a tropical rather than a temperate-climate ophidian demographic system. The population is highly polymorphic, three colour morphs (dotted, grey, and black) are observed in both sexes and each morph is represented by large numbers of individuals. This polymorphism pattern was not previously documented in snakes. Data obtained for other life history traits (e.g. body size, size at maturity, clutch size, diet, predation) markedly diverged in comparison to available information. Overall, our results reinforce the notion that the strong inter-population variability (often mediated by phenotypic plasticity) of snakes should be taken into account over large geographic scales; otherwise attempts to derive general patterns may well be strongly biased. (C) 2012 Elsevier GmbH. All rights reserved.",
journal = "Zoologischer Anzeiger",
title = "Unexpected life history traits in a very dense population of dice snakes",
number = "3",
volume = "252",
pages = "103-358",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_1055"
}

Ajtić, R. D., Tomović, L. M., Sterijovski, B., Crnobrnja-Isailović, J. M., Đorđević, S. Z., Đurakić, M. R., Golubović, A., Simović, A., Arsovski, D., Anđelković, M., Krstić, M., Sukalo, G., Gvozdenović, S., Aidam, A., Michel, C. L., Ballouard, J.,& Bonnet, X.. (2013). Unexpected life history traits in a very dense population of dice snakes. in Zoologischer Anzeiger, 252(3), 103-358.
https://hdl.handle.net/21.15107/rcub_ibiss_1055

Ajtić RD, Tomović LM, Sterijovski B, Crnobrnja-Isailović JM, Đorđević SZ, Đurakić MR, Golubović A, Simović A, Arsovski D, Anđelković M, Krstić M, Sukalo G, Gvozdenović S, Aidam A, Michel CL, Ballouard J, Bonnet X. Unexpected life history traits in a very dense population of dice snakes. in Zoologischer Anzeiger. 2013;252(3):103-358.
https://hdl.handle.net/21.15107/rcub_ibiss_1055 .

Ajtić, Rastko D, Tomović, Ljiljana M, Sterijovski, Bogoljub, Crnobrnja-Isailović, Jelka M., Đorđević, Sonja Z, Đurakić, Marko R, Golubović, Ana, Simović, Aleksandar, Arsovski, Dragan, Anđelković, Marko, Krstić, Milivoj, Sukalo, Goran, Gvozdenović, Slađana, Aidam, Aurelie, Michel, Catherine Louise, Ballouard, Jean-Marie, Bonnet, Xavier, "Unexpected life history traits in a very dense population of dice snakes" in Zoologischer Anzeiger, 252, no. 3 (2013):103-358,
https://hdl.handle.net/21.15107/rcub_ibiss_1055 .