Pub Date : 2020-12-21DOI: 10.3897/herpetozoa.33.e60163
S. Vlad, D. Cogǎlniceanu, R. Băncilă, F. Stănescu
Color aberrations in salamanders are caused by defective chromatophores or by disrupted synthesis of the pigments, and have been previously reported in Europe. In this paper we report the first case of leucism in a fire salamander larva from a cave-dwelling population in Romania. The leucistic larva was larger and heavier compared to the other larvae from the same breeding habitat.
{"title":"A case of color aberration in a fire salamander (Salamandra salamandra) larva","authors":"S. Vlad, D. Cogǎlniceanu, R. Băncilă, F. Stănescu","doi":"10.3897/herpetozoa.33.e60163","DOIUrl":"https://doi.org/10.3897/herpetozoa.33.e60163","url":null,"abstract":"Color aberrations in salamanders are caused by defective chromatophores or by disrupted synthesis of the pigments, and have been previously reported in Europe. In this paper we report the first case of leucism in a fire salamander larva from a cave-dwelling population in Romania. The leucistic larva was larger and heavier compared to the other larvae from the same breeding habitat.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48840757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-14DOI: 10.3897/herpetozoa.33.e52854
Markus Pail, Lukas Landler, G. Gollmann
Research on navigation in animals is hampered by conflicting results and failed replications. In order to assess the generality of previous results, male Bufo bufo were collected during their breeding migration and translocated to two testing sites, 2.4 and 2.9 km away, respectively, from their breeding pond in the north of Vienna (Austria). There each toad was tested twice for orientation responses in a circular arena, on the night of collection and four days later. On the first test day, the toads showed significant axial orientation along their individual former migration direction. On the second test day, no significant homeward orientation was detected. Both results accord with findings of previous experiments with toads from another population. We analysed the potential influence of environmental factors (temperature, cloud cover and lunar cycle) on toad orientations using a MANOVA approach. Although cloud cover and lunar cycle had small effects on the second test day, they could not explain the absence of homeward orientation. The absence of homing responses in these tests may be either caused by the absence of navigational capabilities of toads beyond their home ranges, or by inadequacies of the applied method. To resolve this question, tracking of freely moving toads should have greater potential than the use of arena experiments.
{"title":"Orientation and navigation in Bufo bufo: a quest for repeatability of arena experiments","authors":"Markus Pail, Lukas Landler, G. Gollmann","doi":"10.3897/herpetozoa.33.e52854","DOIUrl":"https://doi.org/10.3897/herpetozoa.33.e52854","url":null,"abstract":"Research on navigation in animals is hampered by conflicting results and failed replications. In order to assess the generality of previous results, male Bufo bufo were collected during their breeding migration and translocated to two testing sites, 2.4 and 2.9 km away, respectively, from their breeding pond in the north of Vienna (Austria). There each toad was tested twice for orientation responses in a circular arena, on the night of collection and four days later. On the first test day, the toads showed significant axial orientation along their individual former migration direction. On the second test day, no significant homeward orientation was detected. Both results accord with findings of previous experiments with toads from another population. We analysed the potential influence of environmental factors (temperature, cloud cover and lunar cycle) on toad orientations using a MANOVA approach. Although cloud cover and lunar cycle had small effects on the second test day, they could not explain the absence of homeward orientation. The absence of homing responses in these tests may be either caused by the absence of navigational capabilities of toads beyond their home ranges, or by inadequacies of the applied method. To resolve this question, tracking of freely moving toads should have greater potential than the use of arena experiments.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":"33 1","pages":"139 - 147"},"PeriodicalIF":0.9,"publicationDate":"2020-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42971971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-07-31DOI: 10.3897/herpetozoa.33.e54901
G. Granados‐González, Carlos Pérez-Almazán, A. Gómez-Benitez, James M. Walker, Oswaldo Hernández‐Gallegos
Clutch size and number of clutches per reproductive cycle are important life history traits that can be influenced by anatomical, physiological, evolutionary, and ecological factors. This report on the clutch size and number of clutches of an endemic Mexican whiptail lizard, Aspidoscelis costatus costatus (Cope, 1878), is based on a study of population at an unusually high elevation for a member of this genus. The study site is located in Ixtapan de la Sal, southeastern Estado de México, Central Mexico, at 2090 m a.s.l. Lizards were sampled in June 2006, and from May to July 2007, where females of Aspidoscelis costatus costatus were collected by hand along a drift fence. Female reproductive condition was evaluated based on abdominal palpation for presence of developing eggs; clutch size was determined by actual counts of either vitellogenic follicles or oviductal eggs. The smallest reproductive female was 77 mm snout-vent length; females produced a minimum of two clutches during the breeding season, the mean clutch size of 6.5 eggs (n = 33) was one of the largest reported for the genus. However, both length and width of its eggs, and the relative clutch mass have not been diminished by development of a large clutch. Additionally, comparisons of clutch size were undertaken within the polytypic A. costatus complex, within the genus Aspidoscelis, and between certain genera of whiptail lizards. This apparently represents the first study of whiptail lizards (genus Aspidoscelis), assessing the aforementioned reproductive characteristics, in a population above 2000 m.
每个生殖周期的卵窝大小和卵窝数量是重要的生活史特征，受解剖学、生理、进化和生态因素的影响。这篇关于墨西哥特有的鞭尾蜥蜴，Aspidoscelis costatus costatus (Cope, 1878)的卵窝大小和卵窝数量的报告，是基于对该属成员在一个异常高海拔的种群的研究。研究地点位于墨西哥中部m xico州东南部的Ixtapan de la Sal，海拔2090米。2006年6月和2007年5月至7月对蜥蜴进行了采样，沿漂流围栏手工采集了雌性Aspidoscelis costatus costatus。通过腹部触诊检查发育中的卵子来评估雌性生殖状况;卵群大小由卵黄细胞卵泡或输卵管卵的实际计数决定。最小生殖雌虫鼻口长度为77 mm;雌性在繁殖季节至少产两窝卵，平均窝卵数为6.5个(n = 33)，是该属中最大的卵之一。然而，它的卵的长度和宽度，以及相对的离合器质量并没有因为一个大的离合器的发展而减少。此外，还比较了多型A. costatus复合体、Aspidoscelis属和鞭尾蜥蜴某些属之间的卵窝大小。这显然是对鞭尾蜥(鞭尾蜥属)的第一次研究，在海拔2000米以上的种群中评估了上述生殖特征。
{"title":"Aspidoscelis costatus costatus (Squamata, Teiidae): high elevation clutch production for a population of whiptail lizards","authors":"G. Granados‐González, Carlos Pérez-Almazán, A. Gómez-Benitez, James M. Walker, Oswaldo Hernández‐Gallegos","doi":"10.3897/herpetozoa.33.e54901","DOIUrl":"https://doi.org/10.3897/herpetozoa.33.e54901","url":null,"abstract":"Clutch size and number of clutches per reproductive cycle are important life history traits that can be influenced by anatomical, physiological, evolutionary, and ecological factors. This report on the clutch size and number of clutches of an endemic Mexican whiptail lizard, Aspidoscelis costatus costatus (Cope, 1878), is based on a study of population at an unusually high elevation for a member of this genus. The study site is located in Ixtapan de la Sal, southeastern Estado de México, Central Mexico, at 2090 m a.s.l. Lizards were sampled in June 2006, and from May to July 2007, where females of Aspidoscelis costatus costatus were collected by hand along a drift fence. Female reproductive condition was evaluated based on abdominal palpation for presence of developing eggs; clutch size was determined by actual counts of either vitellogenic follicles or oviductal eggs. The smallest reproductive female was 77 mm snout-vent length; females produced a minimum of two clutches during the breeding season, the mean clutch size of 6.5 eggs (n = 33) was one of the largest reported for the genus. However, both length and width of its eggs, and the relative clutch mass have not been diminished by development of a large clutch. Additionally, comparisons of clutch size were undertaken within the polytypic A. costatus complex, within the genus Aspidoscelis, and between certain genera of whiptail lizards. This apparently represents the first study of whiptail lizards (genus Aspidoscelis), assessing the aforementioned reproductive characteristics, in a population above 2000 m.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46376100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-11DOI: 10.3897/herpetozoa.33.e59114
Shuo Liu, Hong Hui, D. Rao
We record Zhangixalus franki Li, Jiang, Ren & Jiang, 2019 for the first time from China based on two specimens collected from Laoshan Nature Reserve, Yunnan Province. Morphologically, the newly collected specimens from China mostly agree with the type series from Vietnam. Phylogenetically, these individuals were placed in a clade with Z. franki from Vietnam based on DNA sequences of the mitochondrial 16S rRNA gene. Our finding brings the species number of the genus Zhangixalus to 29 in China.
{"title":"First record of Zhangixalus franki Ninh, Nguyen, Orlov, Nguyen & Ziegler, 2020 (Anura, Rhacophoridae) from China","authors":"Shuo Liu, Hong Hui, D. Rao","doi":"10.3897/herpetozoa.33.e59114","DOIUrl":"https://doi.org/10.3897/herpetozoa.33.e59114","url":null,"abstract":"We record Zhangixalus franki Li, Jiang, Ren & Jiang, 2019 for the first time from China based on two specimens collected from Laoshan Nature Reserve, Yunnan Province. Morphologically, the newly collected specimens from China mostly agree with the type series from Vietnam. Phylogenetically, these individuals were placed in a clade with Z. franki from Vietnam based on DNA sequences of the mitochondrial 16S rRNA gene. Our finding brings the species number of the genus Zhangixalus to 29 in China.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49016846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-06DOI: 10.3897/HERPETOZOA.32.E35824
Iwona Gottfried, B. Borczyk, T. Gottfried
Niche engineering is considered one of the most important interspecific interactions that shape ecosystems, but this kind of interaction network has not been sufficiently studied so far. Here we present the first observation of grass snake Natrixnatrix in the galleries of Cerambyxcerdo. We recorded three grass snake individuals basking and hiding inside the C.cerdo galleries. We suggest the presence of this beetle species may create new environmental niches and improve habitat quality for snakes and other vertebrates.
{"title":"Snakes use microhabitats created by the great capricorn beetle Cerambyx cerdo in southwest Poland","authors":"Iwona Gottfried, B. Borczyk, T. Gottfried","doi":"10.3897/HERPETOZOA.32.E35824","DOIUrl":"https://doi.org/10.3897/HERPETOZOA.32.E35824","url":null,"abstract":"Niche engineering is considered one of the most important interspecific interactions that shape ecosystems, but this kind of interaction network has not been sufficiently studied so far. Here we present the first observation of grass snake Natrixnatrix in the galleries of Cerambyxcerdo. We recorded three grass snake individuals basking and hiding inside the C.cerdo galleries. We suggest the presence of this beetle species may create new environmental niches and improve habitat quality for snakes and other vertebrates.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46641299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-29DOI: 10.3897/herpetozoa.32.e37560
D. Jablonski, R. Sadek
We present the first molecular analysis of the Bufo bufo (Linnaeus, 1758) complex population in the Levant. This complex contains four species distributed through the Western Palearctic. Based on the analysis of the widely used mitochondrial marker 16S rRNA, populations from the Levant belong to B. verrucosissimus (Pallas, 1814) and have a close affiliation to populations from the Transcaucasian region rather than southern Turkey. Such identified relationships may imply past rapid colonisation from north to south and support the need for further research.
{"title":"The Caucasian Toad, Bufo verrucosissimus (Pallas, 1814) in the Levant: evidence from mitochondrial DNA","authors":"D. Jablonski, R. Sadek","doi":"10.3897/herpetozoa.32.e37560","DOIUrl":"https://doi.org/10.3897/herpetozoa.32.e37560","url":null,"abstract":"We present the first molecular analysis of the Bufo bufo (Linnaeus, 1758) complex population in the Levant. This complex contains four species distributed through the Western Palearctic. Based on the analysis of the widely used mitochondrial marker 16S rRNA, populations from the Levant belong to B. verrucosissimus (Pallas, 1814) and have a close affiliation to populations from the Transcaucasian region rather than southern Turkey. Such identified relationships may imply past rapid colonisation from north to south and support the need for further research.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42613480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-22DOI: 10.3897/herpetozoa.32.e39030
E. Lunghi, Daniele Romeo, Manuela Mulargia, Roberto Cogoni, R. Manenti, C. Corti, G. Ficetola, M. Veith
Photographic identification is an emerging method for recognising wild animals. This harmless methodology allows researchers to identify “naturally marked” individuals and therefore study their specific ecology and behaviour. However, before incurring potential data loss, it is recommended to test the methodology on the target species and evaluate the pros and cons. We assessed the reliability of photographic identification in adult Hydromantes salamanders from three species. Specifically, we assessed whether the dorsal pattern of adult salamanders changed over time, thus evaluating its potential use as a reliable marking methodology. We used capture-mark-recapture and controlled conditions (i.e. individuals kept in fauna boxes) to evaluate potential changes in the dorsal pattern of Hydromantes through time. We did not observe any change in the dorsal pattern in the three species during the study period. Photographic identification might be a useful marking technique for these endangered species. However, these animals are usually found in environments generally lacking light and thus, researchers must be careful in setting up proper light conditions to produce suitable pictures for individual identification of Hydromantes.
{"title":"On the stability of the dorsal pattern of European cave salamanders (genus Hydromantes)","authors":"E. Lunghi, Daniele Romeo, Manuela Mulargia, Roberto Cogoni, R. Manenti, C. Corti, G. Ficetola, M. Veith","doi":"10.3897/herpetozoa.32.e39030","DOIUrl":"https://doi.org/10.3897/herpetozoa.32.e39030","url":null,"abstract":"Photographic identification is an emerging method for recognising wild animals. This harmless methodology allows researchers to identify “naturally marked” individuals and therefore study their specific ecology and behaviour. However, before incurring potential data loss, it is recommended to test the methodology on the target species and evaluate the pros and cons. We assessed the reliability of photographic identification in adult Hydromantes salamanders from three species. Specifically, we assessed whether the dorsal pattern of adult salamanders changed over time, thus evaluating its potential use as a reliable marking methodology. We used capture-mark-recapture and controlled conditions (i.e. individuals kept in fauna boxes) to evaluate potential changes in the dorsal pattern of Hydromantes through time. We did not observe any change in the dorsal pattern in the three species during the study period. Photographic identification might be a useful marking technique for these endangered species. However, these animals are usually found in environments generally lacking light and thus, researchers must be careful in setting up proper light conditions to produce suitable pictures for individual identification of Hydromantes.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47376711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-08DOI: 10.3897/herpetozoa.32.e38023
O. Monroy-Vilchis, Rosa-Laura Heredia-Bobadilla, M. M. Zarco-González, V. Ávila-Akerberg, A. Sunny
The most important factor leading to amphibian population declines and extinctions is habitat degradation and destruction. To help prevent further extinctions, studies are needed to make appropriate conservation decisions in small and fragmented populations. The goal of this study was to provide data from the population genetics of two micro-endemic mole salamanders from the Trans-Mexican Volcanic Belt. Nine microsatellite markers were used to study the population genetics of 152 individuals from twoAmbystomaspecies. We sampled 38 individuals in two localities forA. altamiraniandA. rivualre. We found medium to high levels of genetic diversity expressed as heterozygosity in the populations. However, all the populations presented few alleles per locus and genotypes. We found strong genetic structure between populations for each species. Effective population size was small but similar to that of the studies from other mole salamanders with restricted distributions or with recently fragmented habitats. Despite the medium to high levels of genetic diversity expressed as heterozygosity, we found few alleles, evidence of a genetic bottleneck and that the effective population size is small in all populations. Therefore, this study is important to propose better management plans and conservation efforts for these species.
{"title":"Genetic diversity and structure of two endangered mole salamander species of the Trans-Mexican Volcanic Belt","authors":"O. Monroy-Vilchis, Rosa-Laura Heredia-Bobadilla, M. M. Zarco-González, V. Ávila-Akerberg, A. Sunny","doi":"10.3897/herpetozoa.32.e38023","DOIUrl":"https://doi.org/10.3897/herpetozoa.32.e38023","url":null,"abstract":"The most important factor leading to amphibian population declines and extinctions is habitat degradation and destruction. To help prevent further extinctions, studies are needed to make appropriate conservation decisions in small and fragmented populations. The goal of this study was to provide data from the population genetics of two micro-endemic mole salamanders from the Trans-Mexican Volcanic Belt. Nine microsatellite markers were used to study the population genetics of 152 individuals from twoAmbystomaspecies. We sampled 38 individuals in two localities forA. altamiraniandA. rivualre. We found medium to high levels of genetic diversity expressed as heterozygosity in the populations. However, all the populations presented few alleles per locus and genotypes. We found strong genetic structure between populations for each species. Effective population size was small but similar to that of the studies from other mole salamanders with restricted distributions or with recently fragmented habitats. Despite the medium to high levels of genetic diversity expressed as heterozygosity, we found few alleles, evidence of a genetic bottleneck and that the effective population size is small in all populations. Therefore, this study is important to propose better management plans and conservation efforts for these species.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48206356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-17DOI: 10.3897/herpetozoa.32.e35910
Gabriel Suárez-Varón, Orlando Suárez-Rodríguez, G. Granados‐González, Maricela Villagrán-Santa Cruz, K. Gribbins, Diego Cortez-Quezada, Oswaldo Hernández‐Gallegos
Clutch size (CS) and relative clutch mass (RCM) are considered important features in life history descriptions of species within Squamata. Variations in these two characteristics are caused by both biotic and abiotic factors. The present study provides the first account related to CS and RCM ofBasiliscus vittatusin Mexico within a population that inhabits an open riverbed juxtapositioned to tropical rainforest habitat in Catemaco, Veracruz, Mexico (170 m a.s.l.). Twenty-nine gravid females were collected and kept in captivity under favorable conditions that promote oviposition. The CS within this population was 6.2 ± 0.2 and was correlated positively with snout vent-length (SVL); while the RCM was 0.17 ± 0.006 and was correlated positively with both CS and width of egg. Factors, such as female morphology and environmental conditions, should influence these reproductive traits inB. vittatus. The data collected in this study could provide a framework for comparisons of the life history traits across populations ofB. vittatusin Mexico and within other species of the family Corytophanidae and provide a model for testing how abiotic and biotic factors may influence the CS and RCM in basilisk lizards throughout their range.
{"title":"Relative clutch mass of Basiliscus vittatus Wiegmann, 1828 (Squamata, Corytophanidae): female morphological constraints","authors":"Gabriel Suárez-Varón, Orlando Suárez-Rodríguez, G. Granados‐González, Maricela Villagrán-Santa Cruz, K. Gribbins, Diego Cortez-Quezada, Oswaldo Hernández‐Gallegos","doi":"10.3897/herpetozoa.32.e35910","DOIUrl":"https://doi.org/10.3897/herpetozoa.32.e35910","url":null,"abstract":"Clutch size (CS) and relative clutch mass (RCM) are considered important features in life history descriptions of species within Squamata. Variations in these two characteristics are caused by both biotic and abiotic factors. The present study provides the first account related to CS and RCM ofBasiliscus vittatusin Mexico within a population that inhabits an open riverbed juxtapositioned to tropical rainforest habitat in Catemaco, Veracruz, Mexico (170 m a.s.l.). Twenty-nine gravid females were collected and kept in captivity under favorable conditions that promote oviposition. The CS within this population was 6.2 ± 0.2 and was correlated positively with snout vent-length (SVL); while the RCM was 0.17 ± 0.006 and was correlated positively with both CS and width of egg. Factors, such as female morphology and environmental conditions, should influence these reproductive traits inB. vittatus. The data collected in this study could provide a framework for comparisons of the life history traits across populations ofB. vittatusin Mexico and within other species of the family Corytophanidae and provide a model for testing how abiotic and biotic factors may influence the CS and RCM in basilisk lizards throughout their range.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41495375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-10DOI: 10.3897/herpetozoa.32.e35772
A. Arısoy, Eyup Başkale
In many amphibians, skeletochronology is a reliable tool for assessing individual mean longevity, growth rates and age at sexual maturity. We used this approach to determine the age structure of 162 individuals from two Pelophylax caralitanus populations. All individuals exhibited Lines of Arrested Growth (LAGs) in the bone cross-sections and the average age varied between 4.5 and 5.4 years in both Işıklı and Burdur populations. Although intraspecific age structure and sex-specific age structure did not differ significantly between populations, we found that the Işıklı population had a lower body size in the same age class, had lower growths rates and lower values of survival rates and adult life expectancy than the Burdur population.
{"title":"Body size, age structure and survival rates in two populations of the Beyşehir frog Pelophylax caralitanus","authors":"A. Arısoy, Eyup Başkale","doi":"10.3897/herpetozoa.32.e35772","DOIUrl":"https://doi.org/10.3897/herpetozoa.32.e35772","url":null,"abstract":"In many amphibians, skeletochronology is a reliable tool for assessing individual mean longevity, growth rates and age at sexual maturity. We used this approach to determine the age structure of 162 individuals from two Pelophylax caralitanus populations. All individuals exhibited Lines of Arrested Growth (LAGs) in the bone cross-sections and the average age varied between 4.5 and 5.4 years in both Işıklı and Burdur populations. Although intraspecific age structure and sex-specific age structure did not differ significantly between populations, we found that the Işıklı population had a lower body size in the same age class, had lower growths rates and lower values of survival rates and adult life expectancy than the Burdur population.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46102376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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