Current Studies in Herpetology最新文献

{"title":"New findings of the Caucasian toad (Bufo verrucosissimus, Amphibia, Anura, Bufonidae) in the Kuma River basin (North Caucasus, Russia)","authors":"Р . А Иволга А . А . Кидов, A. Kidov, R. A. Ivolga, Article Info","doi":"10.18500/1814-6090-2023-23-1-2-52-57","DOIUrl":"https://doi.org/10.18500/1814-6090-2023-23-1-2-52-57","url":null,"abstract":"The paper discusses the distribution of Bufo verrucosissimus in the North Caucasus. It is noted that the absolute majority of findings of this species in Russia have occurred in the Black Sea basin. All currently known habitats of B. verrucosissimus in the Caspian basin are located in the upper part of the Kuma River basin (the vicinity of Kislovodsk town and Borgustanskaya village in the Stavropol region). New points of findings are shown between the mouths of the Ugol’naya and Kladbishchenskaya Balka rivers (left tributaries of the Kuma River), as well as near Bekeshevskoye Lake (Predgorniy district, Stavropol region). The authors believe that B. verrucosissimus may be distributed along the gallery forests of the Kuma River up to Georgievsk town and Soldato-Alexandrovskoye village.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"92 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":"130086162","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":"On the problem of specific identification in triploid (Bufotes baturae) and tetraploid (B. pewzowi) green toads (Amphibia, Anura, Bufonidae) of Central Asia by morphometric characteristics","authors":"A. Kidov, R. A. Ivolga, T. E. Kondratova, A. Ivanov, E. A. Kidova","doi":"10.18500/1814-6090-2023-23-1-2-27-35","DOIUrl":"https://doi.org/10.18500/1814-6090-2023-23-1-2-27-35","url":null,"abstract":"The paper presents the results of using multiplicative indices for species identification of polyploid green toads of Central Asia. Live adult individuals of Bufotes baturae (24 females and 17 males) from the territory of Tajikistan and B. pewzowi (14 females and 24 males) from Kazakhstan, Uzbekistan and Tajikistan were studied. The animals were caught in nature, measured and immediately released. The species belonging of the studied green toads was established by cytogenetic methods. According to the results of discriminant analysis, six proportionality indices were significant for the species identification of females. The females of B. batura and B. pewzowi formed separate non-overlapping clusters in the discriminant function space, and the level of their reliable classification was 100%. For the identification of B. batura and B. pewzowi males, four significant body proportionality indices were identified using discriminant analysis. The clusters of these two species in the space of discriminant function touched, and the level of correct classification was 97.6%. As a result of our research, one multiplicative index common to males and females was identified for highly reliable identification of B. baturae and B. pewzowi, as well as one multiplicative index separately for males and females of the studied species. The authors conclude that multiplicative indices based on standard morphometric indicators can be used for the practical determination of polyploid green toads.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"16 9 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":"116852908","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":"Morphological characteristics of Coronella austriaca Laurenti, 1768 (Colubridae, Reptilia) in the Samara region","authors":"A. Klenina","doi":"10.18500/1814-6090-2022-22-3-4-105-115","DOIUrl":"https://doi.org/10.18500/1814-6090-2022-22-3-4-105-115","url":null,"abstract":"The morphological characteristics of Coronella austriaca Laurenti, 1768 in the Samara region are presented. The proportion of melanists in the total sample (n = 147) was 2.04%. In wild-caught individuals of different ages and in calves obtained under laboratory conditions which were not in a state of molting, five variants of belly coloration (n = 140) were recorded, namely: black (17.1%), gray (5.0%), brown (17.9%), beige (2.9 %), and orange (57.1%). The first variant of coloration prevailed in mature snakes (48.6%, n = 37), while the latter did in newborns (72.5%, n = 58). The gray and beige shades of the belly began to appear after the second wintering, not occurring in newborns, underyearlings and yearlings. Individuals of both sexes in the total sample showed differences in the change rate of body weight with age, namely: longer and thinner individuals were observed among immature females (L.corp. ˂ 475 mm) than among males of the same size; after reaching sexual maturity (L.corp. > 475 mm) females weighed more than males (on average). The proportion of underyearlings caught in nature in the total sample was 8.8%. The female underyearlings (n = 8) had, on average, a greater body length with the head (L.corp.) and a smaller tail length (L.cd.) as compared to males (n = 5), as well as they were slightly larger than males by total length (L.total) on average. The average value of the L.corp. / L.cd. index was higher in female underyearlings than in males (5.5 and 4.9, respectively). The ranges of its variability (4.9–5.9 for females and 4.2–4.9 for males, respectively) intersected in heterosexual underyearlings by only one value, 4.9. Sexually mature females (n = 37), compared to males (n = 35), had higher average and maximum values of L.corp. but lower average values of L.cd. The L.corp. /L.cd. index was less, on average, in adult males than in females; the ranges of its variability (3.1–4.4 and 4.5–7.5, respectively) did not overlap. Males had a lower mean value of Ventr. and more Scd. as compared with females (170.6 and 56.2 versus 184.0 and 49.5, respectively). The variability ranges of the first trait did not overlap and could be used to determine the sex of young individuals. The CAPO index in males (n = 61) was 0.62, which was somewhat higher than that in females (n = 45), 0.42. The proportion of asymmetric individuals of both sexes (n = 106) according to bilateral characteristics (Lab., Temp.I L/R, Temp.II, and L/R) was 54%.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131091367","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":"Herpetological collection of the Zoological Museum of Tomsk State University. Communication 1. Salamanders (Amphibia: Caudata)","authors":"V. Yartsev, V. N. Kuranova, A. E. Bastrikova, A. V. Kulaeva, A. A. Kiselyova, A. Y. Shchennikov","doi":"10.18500/1814-6090-2022-22-3-4-147-157","DOIUrl":"https://doi.org/10.18500/1814-6090-2022-22-3-4-147-157","url":null,"abstract":"The history of formation and the taxonomic composition of the salamander collection of the Zoological Museum of Tomsk State University, opened in 1888, are analyzed. The history of the collection is characterized by two periods of active formation, namely: late 19th – early 20th centuries and late 20th – early 21st centuries. It is associated with the names of prominent explorers of Siberia, namely: N. F. Kashchenko, S. I. Korzhinsky, A. A. Kulyabko, G. E. Ioganzen, M. D. Ruzsky, V. P. Anikin, and S. M. Chugunov. It presents 14 species from 12 genera and 6 families of salamanders. G. E. Ioganzen, V. N. Kuranova and her students have contributed most greatly to the formation of the collection. The main part of the collection contains Salamandrella keyserlingii and Lissotriton vulgaris. The collection geography covers Russia, Italy, Ukraine, and USA.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132679004","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":"History of Central Asian tortoise Agrionemys horsfieldii (Testudinidae, Reptilia) harvesting in Uzbekistan, and its population impact","authors":"D. Bondarenko","doi":"10.18500/1814-6090-2022-22-3-4-95-104","DOIUrl":"https://doi.org/10.18500/1814-6090-2022-22-3-4-95-104","url":null,"abstract":"The harvesting of the Central Asian tortoise has been a longstanding practice in Uzbekistan. Throughout the 1930s–1950s, this species was harvested to feed farm livestock and shepherd dogs, and during the World War II, tortoise meat was used to provide additional nutrition to the people. The 1960s marked the start of commercial trade in tortoises. The annual volumes of legal harvesting of wild tortoises started to grow in the late 1990s, and reached 85 thousand specimens per year by 2017. The size of the populations at regular harvesting locations has dropped, and their gender and age composition has changed. The CITES export quota for tortoises bred in captivity was increased in 2018–2019 without valid justification, although small breeding centers have no capacity to breed the manifested quantities of animals. Consequently, Uzbekistan currently exports ranched individuals as well as young wild tortoises, mis-declared as bred in captivity. The export of Central Asian tortoises from Uzbekistan should be suspended temporarily until an expert assessment of the situation is made, and penalties for poaching these animals should be made more severe.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"55 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134094242","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":"Wintering conditions for the adder, Vipera berus (Viperidae, Reptilia), in the southern of Karelia","authors":"A. Korosov","doi":"10.18500/1814-6090-2022-22-3-4-116-123","DOIUrl":"https://doi.org/10.18500/1814-6090-2022-22-3-4-116-123","url":null,"abstract":"In the southern part of Karelia, on the Kizhi island, the temperature dynamics in piles of stones (collected by peasants from fields), in which the common viper takes shelter from the winter cold, was studied. A key role in experiencing winter is played by snow drifts covering the stones from the outside, and heat coming from the depths of the earth. It has been shown that in ordinary winters, the temperature stays at 0°C for three months in the winter shelters of the viper, often drops down to -2°C, and even lower for a short time. Thaws turn out to be disastrous, reducing the snow cover depth before the return of frost.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122744389","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 the Caspian lizard (Darevskia capsica) (Reptilia, Lacertidae)","authors":"A. Kidov, A. Ivanov, V. O. Erashkin, T. E. Kondratova","doi":"10.18500/1814-6090-2022-22-3-4-131-136","DOIUrl":"https://doi.org/10.18500/1814-6090-2022-22-3-4-131-136","url":null,"abstract":"The Caspian lizard (Darevskia caspica) is a recently described endemic of the Hyrcanian forests of Northern Iran. The paper presents new data on the reproductive biology of D. caspica obtained in laboratory conditions. Breeding females have a body length of 53.4– 64.4 mm and a mass of 2.96–3.60 g. Females produce from one to three clutches per season, each of which contains 1–6 eggs. The length of these eggs is 10.35–13.95 mm, width 6.19– 7.59 mm, and weight 0.27–0.45 g. The mass of an entire clutch of eggs is 0.43–1.84 g or 11.94- 47.18% of the female’s weight. Incubation duration is 55–66 days at a temperature of 25–27°C and 42–49 days at a temperature of 28–30°C, respectively. Newborn lizards have a body length of 24.45–28.56 mm, a tail length of 38.00–53.00 mm and a mass of 0.34–0.53 g. Young females begin laying eggs 319–593 days after their hatching. It is noted that Caspian lizards have reproductive indicators similar to other representatives of the genus Darevskia, but are characterized by early puberty and high fertility per season.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121993290","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":"On communal egg-laying of the tiger keelback (Rhabdophis tigrinus) (Reptilia, Colubridae) in the Far East of Russia","authors":"A. Kidov, R. A. Ivolga, A. A. Ivanov","doi":"10.18500/1814-6090-2022-22-3-4-137-142","DOIUrl":"https://doi.org/10.18500/1814-6090-2022-22-3-4-137-142","url":null,"abstract":"The paper presents the case of discovery of 60 eggs of the tiger keelback (Rhabdophis tigrinus) in the vicinity of the Dunay settlement (Primorsky Krai, Russian Federation) under a wooden railway sleeper on July 27, 2022. The authors suggest that it was a collective clutch of eggs from three females. Incubation in artificial conditions, from the discovery of this collective clutch to the release of juveniles from the eggs, lasted 17–20 days. Given the synchronicity of the hatching of young snakes, it is assumed that the eggs were laid by different females almost simultaneously. The youth emerging from the eggs had a mass of 1.60–4.78 g, a body length of 152.4–211.3 mm and a tail of 28.4–48.1 mm.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115672985","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":"Influence of the environmental temperature regime on the body temperature of Lacerta agilis Linnaeus, 1758 (Lacertidae, Reptilia) in local populations of the Khoper river floodplain in spring","authors":"V. Tabachishin, M. V. Yermokhin","doi":"10.18500/1814-6090-2022-22-3-4-143-146","DOIUrl":"https://doi.org/10.18500/1814-6090-2022-22-3-4-143-146","url":null,"abstract":"An analysis was made of the influence of the biotope temperature regime on the body temperature of Lacerta agilis in local populations of the floodplain of the middle reaches of the Khoper river (Saratov region). The rectal body temperature in active L. agilis out-side their shelters was shown to be 18.3–35.1°С and 18.2–34.8°С for males and females, respectively. The rectal temperature of L. agilis males and females in the spring period does not differ significantly. The optimal body temperature of L. agilis, which the activity of individuals is observed at, should be considered as 24.2–33.0°C.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117074710","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":"Distribution and protection state of Coronella austriaca (Reptilia: Serpentes: Colubridae) in Kazakhstan","authors":"K. Akhmedenov, A. Bakiev","doi":"10.18500/1814-6090-2022-22-3-4-124-130","DOIUrl":"https://doi.org/10.18500/1814-6090-2022-22-3-4-124-130","url":null,"abstract":"The smooth snake (Coronella austriaca Laurenti, 1768) was known in Kazakhstan from literary sources and reptile collections by few findings within the boundaries of the modern Aktobe region in 1871–1956. The paper gives the coordinates and dates of the 2019–2022 findings in the West Kazakhstan region, where this species has not been met before. 3 individuals were met in Taskalinsky district (State Natural Monument of local significance “Mount Bolshaya Ichka”) and 7 individuals were in Burlinsky and Chingirlausky districts (State Botanical and Zoological Sanctuary of local significance “Mirgorodsky” and the south-eastern environs of this Sanctuary). The presented data make it possible to reliably include C. austriaca into the composition of the modern ophidiofauna of Kazakhstan, to clarify the southeastern border of its range, to characterize the territorial protection state of the species in the republic, and to propose to enlist this species into the Red Data Book of the Republic of Kazakhstan.","PeriodicalId":382700,"journal":{"name":"Current Studies in Herpetology","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120945080","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}