TY  - JOUR
AU  - Bjelica, Vukašin
AU  - Milićević, Ana
AU  - Bugarčić, Marko
AU  - Anđelković, Marko
PY  - 2023
UR  - https://biozoojournals.ro/nwjz/content/v19n2.html
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/6454
PB  - Oradea, Romania: Herpetological Club of Oradea (HCO)
T2  - North-Western Journal of Zoology
T1  - Winter activity of the Caspian whipsnake (Dolichophis caspius, Gmelin, 1789) in Belgrade, Serbia
IS  - 2
VL  - 19
SP  - 212
EP  - 214
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_6454
ER  - 

@article{
author = "Bjelica, Vukašin and Milićević, Ana and Bugarčić, Marko and Anđelković, Marko",
year = "2023",
publisher = "Oradea, Romania: Herpetological Club of Oradea (HCO)",
journal = "North-Western Journal of Zoology",
title = "Winter activity of the Caspian whipsnake (Dolichophis caspius, Gmelin, 1789) in Belgrade, Serbia",
number = "2",
volume = "19",
pages = "212-214",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_6454"
}

Bjelica, V., Milićević, A., Bugarčić, M.,& Anđelković, M.. (2023). Winter activity of the Caspian whipsnake (Dolichophis caspius, Gmelin, 1789) in Belgrade, Serbia. in North-Western Journal of Zoology
Oradea, Romania: Herpetological Club of Oradea (HCO)., 19(2), 212-214.
https://hdl.handle.net/21.15107/rcub_ibiss_6454

Bjelica V, Milićević A, Bugarčić M, Anđelković M. Winter activity of the Caspian whipsnake (Dolichophis caspius, Gmelin, 1789) in Belgrade, Serbia. in North-Western Journal of Zoology. 2023;19(2):212-214.
https://hdl.handle.net/21.15107/rcub_ibiss_6454 .

Bjelica, Vukašin, Milićević, Ana, Bugarčić, Marko, Anđelković, Marko, "Winter activity of the Caspian whipsnake (Dolichophis caspius, Gmelin, 1789) in Belgrade, Serbia" in North-Western Journal of Zoology, 19, no. 2 (2023):212-214,
https://hdl.handle.net/21.15107/rcub_ibiss_6454 .

TY  - CONF
AU  - Bjelica, Vukašin
AU  - Bugarčić, Marko
AU  - Anđelković, Marko
AU  - Milićević, Ana
AU  - Pavlović, Anđela
AU  - Žunić, Lena
AU  - Czurda, Janis
PY  - 2023
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/6132
AB  - The unken reflex (UR) is a deimatic behaviour in certain toad species, such as the European firebellied toad. These toads are cryptically coloured on their backs; however, when they feel threatened, they arch their backs and raise their limbs, revealing the brightly coloured ventral side of the body. This sudden appearance of bright colour has a startling effect and warns potential predators that the toad is poisonous. As an antipredator behaviour, UR should be under selection and adapt to different types of predators/predation pressure. We examined the occurrence and duration of UR in 106 individuals from three populations of the European fire-bellied toad (Bombina bombina). We gently tapped the toads’ heads (5 times) and grabbed them with rubber forceps to entice them to perform UR. We noted the occurrence of UR, whether the toads entered UR by tapping or grabbing and the duration of UR. We observed no significant differences in the occurrence of UR between the localities, but there was a significant difference in the duration of UR between localities. In the locality where UR lasted the longest, toads entered UR more often by grabbing than by tapping. UR was longest in the locality in an urban environment where there are far fewer predators (except cats and dogs) than at the other two localities (natural wetlands) where natural predators are abundant (snakes, water birds and small mammals). Our results may indicate potential local adaptations to different predators/predation pressures and deserve further attention. Future studies of UR should also include features such as belly colour, pattern, and contrast, as these features are also likely crucial to the occurrence and duration of deimatic displays in these toads.
PB  - Societas Europaea Herpetologica
C3  - Programme and Abstracts: 22nd European Congress of Herpetology; 2023 Sep 4-8; Wolverhampton, United Kingdom
T1  - Preliminary results indicate localised adaptation in the duration of unken reflex in fire- bellied toads (Bombina bombina, Bombinatoridae)
SP  - 131
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_6132
ER  - 

@conference{
author = "Bjelica, Vukašin and Bugarčić, Marko and Anđelković, Marko and Milićević, Ana and Pavlović, Anđela and Žunić, Lena and Czurda, Janis",
year = "2023",
abstract = "The unken reflex (UR) is a deimatic behaviour in certain toad species, such as the European firebellied toad. These toads are cryptically coloured on their backs; however, when they feel threatened, they arch their backs and raise their limbs, revealing the brightly coloured ventral side of the body. This sudden appearance of bright colour has a startling effect and warns potential predators that the toad is poisonous. As an antipredator behaviour, UR should be under selection and adapt to different types of predators/predation pressure. We examined the occurrence and duration of UR in 106 individuals from three populations of the European fire-bellied toad (Bombina bombina). We gently tapped the toads’ heads (5 times) and grabbed them with rubber forceps to entice them to perform UR. We noted the occurrence of UR, whether the toads entered UR by tapping or grabbing and the duration of UR. We observed no significant differences in the occurrence of UR between the localities, but there was a significant difference in the duration of UR between localities. In the locality where UR lasted the longest, toads entered UR more often by grabbing than by tapping. UR was longest in the locality in an urban environment where there are far fewer predators (except cats and dogs) than at the other two localities (natural wetlands) where natural predators are abundant (snakes, water birds and small mammals). Our results may indicate potential local adaptations to different predators/predation pressures and deserve further attention. Future studies of UR should also include features such as belly colour, pattern, and contrast, as these features are also likely crucial to the occurrence and duration of deimatic displays in these toads.",
publisher = "Societas Europaea Herpetologica",
journal = "Programme and Abstracts: 22nd European Congress of Herpetology; 2023 Sep 4-8; Wolverhampton, United Kingdom",
title = "Preliminary results indicate localised adaptation in the duration of unken reflex in fire- bellied toads (Bombina bombina, Bombinatoridae)",
pages = "131",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_6132"
}

Bjelica, V., Bugarčić, M., Anđelković, M., Milićević, A., Pavlović, A., Žunić, L.,& Czurda, J.. (2023). Preliminary results indicate localised adaptation in the duration of unken reflex in fire- bellied toads (Bombina bombina, Bombinatoridae). in Programme and Abstracts: 22nd European Congress of Herpetology; 2023 Sep 4-8; Wolverhampton, United Kingdom
Societas Europaea Herpetologica., 131.
https://hdl.handle.net/21.15107/rcub_ibiss_6132

Bjelica V, Bugarčić M, Anđelković M, Milićević A, Pavlović A, Žunić L, Czurda J. Preliminary results indicate localised adaptation in the duration of unken reflex in fire- bellied toads (Bombina bombina, Bombinatoridae). in Programme and Abstracts: 22nd European Congress of Herpetology; 2023 Sep 4-8; Wolverhampton, United Kingdom. 2023;:131.
https://hdl.handle.net/21.15107/rcub_ibiss_6132 .

Bjelica, Vukašin, Bugarčić, Marko, Anđelković, Marko, Milićević, Ana, Pavlović, Anđela, Žunić, Lena, Czurda, Janis, "Preliminary results indicate localised adaptation in the duration of unken reflex in fire- bellied toads (Bombina bombina, Bombinatoridae)" in Programme and Abstracts: 22nd European Congress of Herpetology; 2023 Sep 4-8; Wolverhampton, United Kingdom (2023):131,
https://hdl.handle.net/21.15107/rcub_ibiss_6132 .

TY  - JOUR
AU  - Bugarčić, Marko
AU  - Ivanović, Ana
AU  - Cvijanović, Milena
AU  - Vučić, Tijana
PY  - 2022
UR  - https://brill.com/view/journals/amre/aop/article-10.1163-15685381-bja10082/article-10.1163-15685381-bja10082.xml
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/4873
AB  - The Macedonian crested newt T. macedonicus forms a complex hybrid zone with the Balkan crested newt T. ivanbureschi in the central part of the Balkan Peninsula. In this study, we compared life history parameters (sex ratio, survival rate and age of sexual maturation) and growth parameters (body length and mass) of T. macedonicus and T. macedonicus × T. ivanbureschi hybrids over the first three postmetamorphic years. Survival rates were high and similar for both genotypes. Sexual dimorphism in body size (length and mass) was evident at the beginning of the third postmetamorphic year, after the first breeding year, for both T. macedonicus and hybrids. We did not find clear and consistent difference in any of the analysed traits suggesting that hybridization with T. ivabureschi does not affect postmetamorphic growth and survival of T. macedonicus .
PB  - Brill Academic Publishers
T2  - Amphibia-Reptilia
T1  - Consequences of hybridization on life history and growth in postmetamorphic Triturus macedonicus
IS  - 5
VL  - 10
DO  - 10.1163/15685381-bja10082
SP  - 1
EP  - 7
ER  - 

@article{
author = "Bugarčić, Marko and Ivanović, Ana and Cvijanović, Milena and Vučić, Tijana",
year = "2022",
abstract = "The Macedonian crested newt T. macedonicus forms a complex hybrid zone with the Balkan crested newt T. ivanbureschi in the central part of the Balkan Peninsula. In this study, we compared life history parameters (sex ratio, survival rate and age of sexual maturation) and growth parameters (body length and mass) of T. macedonicus and T. macedonicus × T. ivanbureschi hybrids over the first three postmetamorphic years. Survival rates were high and similar for both genotypes. Sexual dimorphism in body size (length and mass) was evident at the beginning of the third postmetamorphic year, after the first breeding year, for both T. macedonicus and hybrids. We did not find clear and consistent difference in any of the analysed traits suggesting that hybridization with T. ivabureschi does not affect postmetamorphic growth and survival of T. macedonicus .",
publisher = "Brill Academic Publishers",
journal = "Amphibia-Reptilia",
title = "Consequences of hybridization on life history and growth in postmetamorphic Triturus macedonicus",
number = "5",
volume = "10",
doi = "10.1163/15685381-bja10082",
pages = "1-7"
}

Bugarčić, M., Ivanović, A., Cvijanović, M.,& Vučić, T.. (2022). Consequences of hybridization on life history and growth in postmetamorphic Triturus macedonicus. in Amphibia-Reptilia
Brill Academic Publishers., 10(5), 1-7.
https://doi.org/10.1163/15685381-bja10082

Bugarčić M, Ivanović A, Cvijanović M, Vučić T. Consequences of hybridization on life history and growth in postmetamorphic Triturus macedonicus. in Amphibia-Reptilia. 2022;10(5):1-7.
doi:10.1163/15685381-bja10082 .

Bugarčić, Marko, Ivanović, Ana, Cvijanović, Milena, Vučić, Tijana, "Consequences of hybridization on life history and growth in postmetamorphic Triturus macedonicus" in Amphibia-Reptilia, 10, no. 5 (2022):1-7,
https://doi.org/10.1163/15685381-bja10082 . .

TY  - CONF
AU  - Drobnjaković, Marija
AU  - Ivanović, Ana
AU  - Bugarčić, Marko
AU  - Cvijanović, Milena
AU  - Ajduković, Maja
AU  - Vučić, Tijana
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5230
AB  - Staging tables based on the external morphological characteristics are important 
for the needs of comparative embryological studies as they represent a baseline. Large bodied newts (Triturus spp.) have a transparent mucoid capsule that enables insight 
into the external morphology of the embryo during development. Triturus newts are 
characterized by the presence of chromosome 1 syndrome where about 50% of the 
offspring stops developing and dies during the mid embryonic period on the tail bud 
stage. In this study, we focused on the normal development of Balkan crested newt 
(Triturus ivanbureschi). During the breeding season animals were kept in the yard of 
the institute, in plastic tubs (from 200 to 400 liters), covered with a mosquito net that 
allowed natural day-night regime. Plastic strips were provided as an imitation of 
underwater vegetation, on which the females laid their eggs. Eggs were collected every 
morning and moved to Petri dishes at the controlled experimental conditions. The 
embryos were kept in the laboratory at a temperature of 20°C. Photographs and time lapse recordings of developing embryos were taken every day at the same time. 
Compared to already published staging tables for newts and based on the appearance 
of certain morphological structures, such as gills, extremities, balancers, etc., we
distinguished 37 different stages of normal embryonic development of T. ivanbureshi. 
Still, differences in external morphology due to the balanced lethal chromosome 1 
syndrome need further research
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  - Developmental stages of Triturus ivanbureschi
VL  - 260
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5230
ER  - 

@conference{
author = "Drobnjaković, Marija and Ivanović, Ana and Bugarčić, Marko and Cvijanović, Milena and Ajduković, Maja and Vučić, Tijana",
year = "2022",
abstract = "Staging tables based on the external morphological characteristics are important 
for the needs of comparative embryological studies as they represent a baseline. Large bodied newts (Triturus spp.) have a transparent mucoid capsule that enables insight 
into the external morphology of the embryo during development. Triturus newts are 
characterized by the presence of chromosome 1 syndrome where about 50% of the 
offspring stops developing and dies during the mid embryonic period on the tail bud 
stage. In this study, we focused on the normal development of Balkan crested newt 
(Triturus ivanbureschi). During the breeding season animals were kept in the yard of 
the institute, in plastic tubs (from 200 to 400 liters), covered with a mosquito net that 
allowed natural day-night regime. Plastic strips were provided as an imitation of 
underwater vegetation, on which the females laid their eggs. Eggs were collected every 
morning and moved to Petri dishes at the controlled experimental conditions. The 
embryos were kept in the laboratory at a temperature of 20°C. Photographs and time lapse recordings of developing embryos were taken every day at the same time. 
Compared to already published staging tables for newts and based on the appearance 
of certain morphological structures, such as gills, extremities, balancers, etc., we
distinguished 37 different stages of normal embryonic development of T. ivanbureshi. 
Still, differences in external morphology due to the balanced lethal chromosome 1 
syndrome need further research",
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 = "Developmental stages of Triturus ivanbureschi",
volume = "260",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5230"
}

Drobnjaković, M., Ivanović, A., Bugarčić, M., Cvijanović, M., Ajduković, M.,& Vučić, T.. (2022). Developmental stages of Triturus ivanbureschi. 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., 260.
https://hdl.handle.net/21.15107/rcub_ibiss_5230

Drobnjaković M, Ivanović A, Bugarčić M, Cvijanović M, Ajduković M, Vučić T. Developmental stages of Triturus ivanbureschi. in Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia. 2022;260.
https://hdl.handle.net/21.15107/rcub_ibiss_5230 .

Drobnjaković, Marija, Ivanović, Ana, Bugarčić, Marko, Cvijanović, Milena, Ajduković, Maja, Vučić, Tijana, "Developmental stages of Triturus ivanbureschi" in Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia, 260 (2022),
https://hdl.handle.net/21.15107/rcub_ibiss_5230 .

TY  - CONF
AU  - Bugarčić, Marko
AU  - Ivanović, Ana
AU  - Cvijanović, Milena
AU  - Ajduković, Maja
AU  - Wielstra, Ben
AU  - Vučić, Tijana
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5228
AB  - In developmental biology a plethora of studies support the existence of a
conserved stage during the ontogeny of vertebrates – the pharyngula. The
developmental hourglass model predicts that the most conserved morphological
pattern occurs in the middle of embryonic development. We explored external
morphology of the craniofacial region of Triturus newts using 3D geometric
morphometrics. The craniofacial region was selected because it experiences
pleiotropic developmental constrains due to its major role in feeding, respiration and
the housing of substantial parts of nervous and sensory systems. We aimed to uncover
differences in variance between successive developmental stages, because it is
proposed that the more constrained stages should have the lowest variance. In
addition, we explored differences in the craniofacial shape between successive
developmental stages. Stages included start from the moment after the completion of
neurulation and span the mid-tailbud phase. The least amount of variance in shape was
recorded at stage 24 (according to D’Amen and colleagues). In general, this stage is
characterized by changes in overall head shape, the distinction of optical vesicles,
intensive somitogenesis and formation of the tailbud which overgrows the blastopore,
indicating that these processes could be highly constrained. Only significant
craniofacial shape change occurred between this and successive stage. The most
pronounced differences were due to growing of the head region and gill bud balancers.
Optic vesicles became concave due to inductive processes preceding eye formation.
These preliminary results indicate that stage 24 could be the most conserved one
during early ontogeny as it is preceded and followed by stages exhibiting more
variance in shape. Our results indicate that the craniofacial development represents a
suitable model system for testing the hourglass model of development. Larger sample
size, exploration of the entire embryonic development and ontogeny of additional newt
species is needed to confirm our preliminary findings.
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  - Craniofacial development of Triturus newts – a suitable model system for  testing the developmental hourglass model
SP  - 42
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5228
ER  - 

@conference{
author = "Bugarčić, Marko and Ivanović, Ana and Cvijanović, Milena and Ajduković, Maja and Wielstra, Ben and Vučić, Tijana",
year = "2022",
abstract = "In developmental biology a plethora of studies support the existence of a
conserved stage during the ontogeny of vertebrates – the pharyngula. The
developmental hourglass model predicts that the most conserved morphological
pattern occurs in the middle of embryonic development. We explored external
morphology of the craniofacial region of Triturus newts using 3D geometric
morphometrics. The craniofacial region was selected because it experiences
pleiotropic developmental constrains due to its major role in feeding, respiration and
the housing of substantial parts of nervous and sensory systems. We aimed to uncover
differences in variance between successive developmental stages, because it is
proposed that the more constrained stages should have the lowest variance. In
addition, we explored differences in the craniofacial shape between successive
developmental stages. Stages included start from the moment after the completion of
neurulation and span the mid-tailbud phase. The least amount of variance in shape was
recorded at stage 24 (according to D’Amen and colleagues). In general, this stage is
characterized by changes in overall head shape, the distinction of optical vesicles,
intensive somitogenesis and formation of the tailbud which overgrows the blastopore,
indicating that these processes could be highly constrained. Only significant
craniofacial shape change occurred between this and successive stage. The most
pronounced differences were due to growing of the head region and gill bud balancers.
Optic vesicles became concave due to inductive processes preceding eye formation.
These preliminary results indicate that stage 24 could be the most conserved one
during early ontogeny as it is preceded and followed by stages exhibiting more
variance in shape. Our results indicate that the craniofacial development represents a
suitable model system for testing the hourglass model of development. Larger sample
size, exploration of the entire embryonic development and ontogeny of additional newt
species is needed to confirm our preliminary findings.",
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 = "Craniofacial development of Triturus newts – a suitable model system for  testing the developmental hourglass model",
pages = "42",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5228"
}

Bugarčić, M., Ivanović, A., Cvijanović, M., Ajduković, M., Wielstra, B.,& Vučić, T.. (2022). Craniofacial development of Triturus newts – a suitable model system for  testing the developmental hourglass model. 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., 42.
https://hdl.handle.net/21.15107/rcub_ibiss_5228

Bugarčić M, Ivanović A, Cvijanović M, Ajduković M, Wielstra B, Vučić T. Craniofacial development of Triturus newts – a suitable model system for  testing the developmental hourglass model. in Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia. 2022;:42.
https://hdl.handle.net/21.15107/rcub_ibiss_5228 .

Bugarčić, Marko, Ivanović, Ana, Cvijanović, Milena, Ajduković, Maja, Wielstra, Ben, Vučić, Tijana, "Craniofacial development of Triturus newts – a suitable model system for  testing the developmental hourglass model" in Program and Book of Abstracts: the 21st European Congress of Herpetology; 2022 Sep 5-9; Belgrade, Serbia (2022):42,
https://hdl.handle.net/21.15107/rcub_ibiss_5228 .