Current Studies in Herpetology最新文献

{"title":"Ecological niches breadth analysis of Darevskia (Lacertidae, Reptilia) parthenogenetic lizards with various scenarios of clonal lineage formation in populations","authors":"F. Osipov, V. V. Bobrov, N. Dergunova, M. S. Arakelyan, V. G. Petrosyan","doi":"10.18500/1814-6090-2023-23-3-4-108-112","DOIUrl":"https://doi.org/10.18500/1814-6090-2023-23-3-4-108-112","url":null,"abstract":"In this work, we tested the conditions for fulfilling the concept of geographic parthenogenesis by a comparative analysis of the breadth of the ecological niches of parental and parthenogenetic lizards of the genus Darevskia with a various number of established hybridization events. Estimates of the breadth of ecological niches of the parthenogenetic species D. rostombekowi Nb = 0.6(±0.08) and parental bisexual species D. raddei raddei – Nb = 0.86(±0.9), D. portschinskii – Nb = 1.21(±0.17) showed that for this parthenogenetic species one of the most important conditions of geographic parthenogenesis is fulfilled, i.e. the niche breadth of the parthenogenetic species is smaller than its parental bisexual species. The niche breadth of another parthenogenetic species D. dahli Nb = 0.86(±0.12) is smaller than that of the «paternal» species D. portschinskii – Nb = 1.21(±0.17), but larger than that of the «maternal» species D. mixta Nb = 0.48 (±0.08), which only partially agrees with the condition of geographic parthenogenesis. This mismatch is due to the fact that D. dahli was formed as a result of several independent hybridization events, which resulted in the formation of multiple clonal lines derived from different parental pairs of D. portschinskii and D. mixta.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"171 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139173359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vladimir G. Ishchenko (1938 – 2021) – in memory of a Yekaterinburg Petersburger","authors":"N. Ananjeva, G. V. Olenev, V. N. Kuranova, V. A. Payevsky","doi":"10.18500/1814-6090-2023-23-3-4-169-180","DOIUrl":"https://doi.org/10.18500/1814-6090-2023-23-3-4-169-180","url":null,"abstract":"This paper is dedicated to the history of the life path and scientific biography of Vladimir Georgievich Ishchenko, the founder of the national amphibian population ecology. He was born in 1938 and formed as a biologist in Leningrad, where he took his first steps in science under the guidance of Pavel Viktorovich Terentyev. In 1961, after graduating from the university, he moved to work in Sverdlovsk, at the Institute of Biology of the Ural Branch of the USSR Academy of Sciences, where he rose from a laboratory assistant to a leading researcher, Doctor of Biological Sciences and worked until his retirement on November 30, 2018. It was in Sverdlovsk (Yekaterinburg from 1723 to 1924 and after 1991) Vladimir Georgievich for a long period (39 years of regular continuous monitoring), conducted research to study the dynamics of the number and age structure of the amphibian population (pointed frog) in the Urals. The area of scientific interests of Vladimir Georgievich covered population ecology, genetic diversity, phylogeny and taxonomy of animals, the state of populations and the protection of the animal world. His work has made a significant contribution to understanding the ecological mechanisms of ontogeny regulation in animals.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"56 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139174119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modelling the range dynamics of the marsh frog (Pelophylax ridibundus) (Ranidae, Amphibia) in Russia under alternative scenarios of global climate change","authors":"V. G. Petrosyan, F. Osipov, I. Bashinskiy, N. Dergunova, V. V. Bobrov","doi":"10.18500/1814-6090-2023-23-3-4-113-118","DOIUrl":"https://doi.org/10.18500/1814-6090-2023-23-3-4-113-118","url":null,"abstract":"Predictive maps of the distribution of the marsh frog (Pelophylax ridibundus) in Russia under the conditions of global climate change up to 2100 are presented. It is shown that under the influence of global climate change, the range will expand and the centroid will shift to the north-east. The patterns of the formation of the invasive part of the species range are summarized and maps are created for different models and scenarios of climate change, which include suitable territories for the further dispersal of the species in the European part of Russia, the Urals, Siberia and the Far East. It is shown that with warming in the case of low-sensitivity models, the area of territories suitable for the species will increase by 193(±76)%, and the shift of the center of the range in latitude will be 427(±82) km.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"22 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139174246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Foster’s or island rule in populations of Phrynocephalus mystaceus and Eremias velox (Reptilia, Lacertilia) on the sandy massif Sarykum","authors":"G. Polynova, O. E. Polynova","doi":"10.18500/1814-6090-2023-23-3-4-154-159","DOIUrl":"https://doi.org/10.18500/1814-6090-2023-23-3-4-154-159","url":null,"abstract":"The sandy massif Sarykum, whose age is about 100 thousand years, is an island habitat for psammophilic species of terrestrial vertebrates. The paper presents new morphometric data on the populations of two species of psammophilous lizards living in this area. These are the nominative subspecies of the Secret Toadheaded Agama (Phrynocephalus mystaceus mystaceus Pallas, 1776) and the Caucasian Central Asian Racerunner (Eremias velox caucasica Lantz, 1928). Body length of sexually mature males of the Secret Toadheaded Agama averages 76.5±3.7 mm (n = 30), and adult females – 68.9±4.2 mm (n = 29). Comparison of the obtained materials with similar parameters of the Kazakhstan population of the subspecies shows that mature individuals of the Sarykum population are significantly smaller: for males td = 1.33 ≥ tst with a confidence level α = 0.80, and for females td = 2.07 ≥ tst with α = 0.95. It is known from the literature that all the pre-Caucasian populations of this species are isolated. Perhaps the small size of mature individuals in them also serve as an example of the manifestation of Foster's rule. The data of the presented study indicate a similar feature of the Sarykum population of the Caucasian Central Asian Racerunner. The body length of mature males at Sarykum is 63.6±2.9 mm (n = 9), and that of females is 58.4±3.0 mm (n = 17). The calculation of the reliability of differences by the Student coefficient shows that the length of the trunk of males (td = 2) and females (td = 0.61) of the Sarykum population does not statistically differ from the averaged materials for the region. At the same time, mature individuals of the Sarykum population are significantly smaller than the nominative subspecies from Kazakhstan: for males td = 1.40 ≥ tst with a confidence probability α = 0.80, and for females td = 2.20 ≥ tst with α = 0.95. It is obvious that Foster's rule does not manifest itself in the subspecies population living on the Sarykum sandy massif, and the conspicuous small size of mature individuals is determined by comparison with the size of the nominative subspecies. An interesting fact is that immature foot-and-mouth of both species do not differ in size from individuals of the same age of other populations. Probably, at this stage of ontogenesis, the overall physiologically optimal size for the species is preserved.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"29 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139176026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Some data on the parasite fauna of the Caucasian agama Paralaudakia caucasia Eichwald, 1831 (Agamidae, Reptilia) in Dagestan","authors":"A. G. Gadzhiramazanova, U. A. Gichikhanova, L. F. Mazanaeva","doi":"10.18500/1814-6090-2023-23-3-4-135-137","DOIUrl":"https://doi.org/10.18500/1814-6090-2023-23-3-4-135-137","url":null,"abstract":"Information on the species composition of the parasite fauna of the Caucasian agama P. caucasia is given. In total, 12 individuals of the Caucasian agama were studied and 5 species of helminths were found (Macracanthorhynchus catulinus, Thelandros popovi, T. markovi, Parapharyngodon brevicaudatus, Parapharyngodon szczerbakin). Ectoparasites were not found on the studied agamas.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"260 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139173936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Captive breeding of Regel’s racerunner (Eremias regeli, Reptilia, Lacertidae)","authors":"A. Kidov, V. O. Erashkin, A. Ivanov, T. E. Kondratova, Article Info","doi":"10.18500/1814-6090-2023-23-1-2-58-64","DOIUrl":"https://doi.org/10.18500/1814-6090-2023-23-1-2-58-64","url":null,"abstract":"The paper presents the results of laboratory reproduction of Regel’s racerunner (Eremias regeli). Offspring was obtained from natural individuals (2 females and 2 males) captured in the vicinity of the Bokhtar town (Khatlon region, Republic of Tajikistan). Captive-born animals (3 females and 2 males) began laying eggs at the age of 7 months. The lizards from nature reproduced twice a year, while the animals obtained in the laboratory lay eggs up to three times per season. The clutches of both natural and laboratory lizards contained from 2 to 4 eggs. In total, 9 fertile clutches and 26 eggs were studied, which 18 newborn lizards were obtained from. The mass of one clutch ranged from 28.97 to 54.68% of the female mass. The eggs had a length of 12.3–18.1 mm, a width of 7.3–9.4 mm and a weight of 0.53–0.95 g. Incubation lasted 56–99 days. The newborn lizards had a body length of 26.5–35.1 mm, a tail length of 41.1–60.0 mm and a mass of 0.60–1.11 g. Comparing the reproductive parameters of E. regeli with other representatives of the tribus Eremiadini, the authors note relatively small sizes of adult females, their low fertility, but large sizes of eggs and newborn juveniles.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117016329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current state of internet trading of sea turtle (Cheloniidae) derivatives in Russia","authors":"M. Pestov, D. A. Denisov, A. E. Karpukhin, A. Gnetneva","doi":"10.18500/1814-6090-2023-23-1-2-36-43","DOIUrl":"https://doi.org/10.18500/1814-6090-2023-23-1-2-36-43","url":null,"abstract":"This paper reports the results of our monitoring the presence of advertisements for the sale of sea turtle (Cheloniidae) derivatives on the Internet in Russia in 2021 and 2023. Data on species, number, region of origin, market price and turnover rate of these derivatives are summarized. A brief analysis of the regulatory framework governing the turnover of sea turtle derivatives is given and the conclusion on the necessity of its adjustment is provided.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133955336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Age differences in the leukocyte blood composition of the common viper Vipera berus (Reptilia: Serpentes: Viperidae)","authors":"E. Romanova, E. I. Solomaykin, A. Bakiev, R. Gorelov","doi":"10.18500/1814-6090-2023-23-1-2-44-51","DOIUrl":"https://doi.org/10.18500/1814-6090-2023-23-1-2-44-51","url":null,"abstract":"The results of our comparative analysis of parameters of the leukocyte blood system of underyearlings and mature specimens of the common viper Vipera berus are presented. The material was the blood of 36 females and 26 males caught in the Middle Volga basin, and 13 underyearlings born in captivity from 4 females of this sample. V. b. berus underyearlings differed: from the females by a lower content of heterophils and azurophils, an increased content of eosinophils and basophils, an increase in the leukocyte shift index, a decrease in the lymphocytic–granulocytic index, the index of the of heterophil–eosinophil ratio, the index of the lymphocyte–eosinophil ratio; from the males by a reduced content of heterophils, an increased content of eosinophils and basophils, an increase in the leukocyte shift index, the index of the heterophil–eosinophil ratio, and the index of the lymphocyte–eosinophil ratio. In general, the adaptive response of the blood system of underyearlings indicated the later activation of lymphocytes as an effector link and the imbalance of the immune response due to the lack of a resource of immunocompetent cells (agranulocytes) compared with the indices of adults from natural populations.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132290051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introduction and reintroduction of the takyr roundhead Phrynocephalus helioscopus (Agamidae, Reptilia) in the Altai region","authors":"N. G. Krymov, Article Info","doi":"10.18500/1814-6090-2023-23-1-2-65-68","DOIUrl":"https://doi.org/10.18500/1814-6090-2023-23-1-2-65-68","url":null,"abstract":"Information is provided on the introduction and reintroduction of the takyr roundhead (Phrynocephalus helioscopus) in the Altai region under the “Program of Comprehensive Study of the Methods of Keeping and Breeding in Captivity of the Takyr roundhead (Phryno-cephalus helioscopus)”.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134548856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reproductive ecology of Anuran Amphibians: Effects of internal and external factors","authors":"G. A. Ivanov, M. V. Yermokhin, V. V. Tabachishin, V. Tabachishin","doi":"10.18500/1814-6090-2023-23-1-2-3-26","DOIUrl":"https://doi.org/10.18500/1814-6090-2023-23-1-2-3-26","url":null,"abstract":"This research paper examines the influence of internal factors (female body weight, body condition) and external ecological factors on the reproductive parameters of females, as well as on the reproductive ecology of adult individuals of anuran amphibians. Among the most significant reproductive characteristics of females are the number of eggs in a clutch, the proportion of reproductive products to female body weight (contribution to reproduction), and the average weight of eggs. The body weight of the female and the ecological (meteorological) conditions of her activity during the year preceding spawning, as well as the hibernation conditions, have the greatest impact on the quantitative expression of these parameters. The proportion of reproductive products to female body weight in anuran amphibians usually ranges from 13 to 30%. Climate warming can directly affect the reproductive parameters of females, the survival of metamorphs, and the phenology of the spawning period.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124990827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}