Pub Date : 2021-09-01DOI: 10.30906/1026-2296-2021-28-4-185-196
Shuo Liu, Qisheng Li, M. Hou, N. Orlov, N. Ananjeva
A new species of Cyrtodactylus is described based on five specimens collected from the karst formations of Maguan County, Wenshan Prefecture, Yunnan Province, China. The new species is recognized by having a unique combination of morphological characters: medium body size, ventrolateral folds present without interspersed tubercles, 7 – 9 precloacal pores in a continuous series, enlarged femoral scales present and continuous with pore-bearing precloacal scales, femoral pores on each enlarged femoral scale in males, 1 – 4 postcloacal tubercles on each side, subcaudals enlarged, a black postocular streak extending from posterior corner of eye rearwards to above tympanum, nuchal loop discontinuous, 6 – 7 black irregular dorsal bands between limbs, most bands discontinuous. Genetically, uncorrected sequence divergences of the ND2 gene and its flanking tRNAs between the new species and investigated congeners ranged from 12.5% to 18.2%.
{"title":"A New Species of Cyrtodactylus Gray, 1827 (Squamata, Gekkonidae) from Southern Yunnan, China","authors":"Shuo Liu, Qisheng Li, M. Hou, N. Orlov, N. Ananjeva","doi":"10.30906/1026-2296-2021-28-4-185-196","DOIUrl":"https://doi.org/10.30906/1026-2296-2021-28-4-185-196","url":null,"abstract":"A new species of Cyrtodactylus is described based on five specimens collected from the karst formations of Maguan County, Wenshan Prefecture, Yunnan Province, China. The new species is recognized by having a unique combination of morphological characters: medium body size, ventrolateral folds present without interspersed tubercles, 7 – 9 precloacal pores in a continuous series, enlarged femoral scales present and continuous with pore-bearing precloacal scales, femoral pores on each enlarged femoral scale in males, 1 – 4 postcloacal tubercles on each side, subcaudals enlarged, a black postocular streak extending from posterior corner of eye rearwards to above tympanum, nuchal loop discontinuous, 6 – 7 black irregular dorsal bands between limbs, most bands discontinuous. Genetically, uncorrected sequence divergences of the ND2 gene and its flanking tRNAs between the new species and investigated congeners ranged from 12.5% to 18.2%.","PeriodicalId":48693,"journal":{"name":"Russian Journal of Herpetology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48892568","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 : 2021-09-01DOI: 10.30906/1026-2296-2021-28-4-225-230
Yuval Itescu, J. Foufopoulos, Rachel Schwarz, P. Lymberakis, Alex Slavenko, Ioanna-Aikaterini Gavriilidi, Shai Meiri, P. Pafilis
Body size evolution on islands is widely studied and hotly debated. Gigantism and dwarfism are thought to evolve under strong natural selection, especially on small remote islands. We report a curious co-occurrence of both dwarf and giant lizards on the same small, remote island (Plakida): the largest Podarcis erhardii (Lacertidae) and smallest Mediodactylus kotschyi sensu lato; Gekkonidae — the two commonest insular reptiles in the Aegean Sea. The geckos of Plakida have a peculiar tail-waving behavior, documented here for the first time in this genus. We suspect that P. erhardii evolved large size to consume geckos and the geckos evolved a unique tail-waving behavior as a defensive mechanism.
岛屿上的体型进化得到了广泛的研究和激烈的争论。巨人症和侏儒症被认为是在强烈的自然选择下进化而来的，尤其是在偏远的小岛上。我们报告了一个奇怪的侏儒蜥蜴和巨型蜥蜴在同一个小而偏远的岛屿上共存的现象:最大的Podarcis erhardii (Lacertidae)和最小的Mediodactylus kotschyi sensu lato;壁虎科-爱琴海中最常见的两种岛屿爬行动物。Plakida的壁虎有一种奇特的摇尾行为，这是该属首次记录。我们怀疑埃尔哈地弓形虫进化出巨大的体型是为了捕食壁虎，而壁虎进化出独特的摇尾行为作为一种防御机制。
{"title":"The Island of Extremes: Giants and Dwarfs on a Small Remote Island","authors":"Yuval Itescu, J. Foufopoulos, Rachel Schwarz, P. Lymberakis, Alex Slavenko, Ioanna-Aikaterini Gavriilidi, Shai Meiri, P. Pafilis","doi":"10.30906/1026-2296-2021-28-4-225-230","DOIUrl":"https://doi.org/10.30906/1026-2296-2021-28-4-225-230","url":null,"abstract":"Body size evolution on islands is widely studied and hotly debated. Gigantism and dwarfism are thought to evolve under strong natural selection, especially on small remote islands. We report a curious co-occurrence of both dwarf and giant lizards on the same small, remote island (Plakida): the largest Podarcis erhardii (Lacertidae) and smallest Mediodactylus kotschyi sensu lato; Gekkonidae — the two commonest insular reptiles in the Aegean Sea. The geckos of Plakida have a peculiar tail-waving behavior, documented here for the first time in this genus. We suspect that P. erhardii evolved large size to consume geckos and the geckos evolved a unique tail-waving behavior as a defensive mechanism.","PeriodicalId":48693,"journal":{"name":"Russian Journal of Herpetology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42963388","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 : 2021-09-01DOI: 10.30906/1026-2296-2021-28-4-205-218
Yuehong Cheng, Jin-Long Ren, Guanghua Zhu, Jiatang Li
Atretium yunnanensis was originally recognized as a variant of Atretium schistosum. It was subsequently elevated to full species status and has long been assigned to the natricine genus Atretium. However, the taxonomic status of A. yunnanensis still remained unevaluated by a polyphasic taxonomic approach. In the present study, the generic assignment of A. yunnanensis was re-evaluated based on both morphological and genetic evidences from newly collected specimens (including topotypes). The genus Atretium was recovered as polyphyletic with reference to A. yunnanensis, whereas A. yunnanensis was nested within the genus Fowlea Theobald, 1868. Moreover, Atretium yunnanensis is morphologically closer to the members of Fowlea rather than the genus Atretium. Since the continuous recognition of A. yunnanensis in the genus Atretium will preclude the monophyly of genus Atretium, we transfer A. yunnanensis to the genus Fowlea. In addition, we provided detailed descriptions of Fowlea yunnanensis, including hemipenial description, colored photos, distribution map, and natural history.
{"title":"On the Taxonomy of Atretium yunnanensis Anderson, 1879 (Squamata: Natricidae), with Redescriptions and Natural History Data of the Poorly Known Species","authors":"Yuehong Cheng, Jin-Long Ren, Guanghua Zhu, Jiatang Li","doi":"10.30906/1026-2296-2021-28-4-205-218","DOIUrl":"https://doi.org/10.30906/1026-2296-2021-28-4-205-218","url":null,"abstract":"Atretium yunnanensis was originally recognized as a variant of Atretium schistosum. It was subsequently elevated to full species status and has long been assigned to the natricine genus Atretium. However, the taxonomic status of A. yunnanensis still remained unevaluated by a polyphasic taxonomic approach. In the present study, the generic assignment of A. yunnanensis was re-evaluated based on both morphological and genetic evidences from newly collected specimens (including topotypes). The genus Atretium was recovered as polyphyletic with reference to A. yunnanensis, whereas A. yunnanensis was nested within the genus Fowlea Theobald, 1868. Moreover, Atretium yunnanensis is morphologically closer to the members of Fowlea rather than the genus Atretium. Since the continuous recognition of A. yunnanensis in the genus Atretium will preclude the monophyly of genus Atretium, we transfer A. yunnanensis to the genus Fowlea. In addition, we provided detailed descriptions of Fowlea yunnanensis, including hemipenial description, colored photos, distribution map, and natural history.","PeriodicalId":48693,"journal":{"name":"Russian Journal of Herpetology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45943489","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 : 2021-09-01DOI: 10.30906/1026-2296-2021-28-4-231-236
Alex Slavenko, E. Maza, Yuval Itescu
Small islets in the Mediterranean Sea are often home to reptiles, typically representing an impoverished sample of the continental fauna, yet with high population densities and signs of rapid morphological and behavioral evolution. In this paper, we present the first herpetofaunal survey of several small islet clusters in close proximity to the Mediterranean coast of Israel, only recently geologically separated from the mainland. We performed surveys of five islets during March of 2017 – 2018 and recorded the presence of five different species of reptiles on four of the surveyed islets. Species richness varied between 1 and 4 species, and appeared to be correlated with island area, with a distinct nested structure. Reptile species may have colonized the islets by natural dispersal from nearby coastal populations, or by hitch-hiking on fishing boats and similar methods of human-assisted dispersal. Alternatively, the recorded reptiles may represent relictual populations from earlier geologic periods, when lower sea-levels supported continuous land-bridges between the islets and the mainland. These insular reptile populations require further study to establish the exact means of colonization and describe if and how they differ from mainland populations. We stress the importance of such small Mediterranean islets such as these as centers of unique biodiversity and encourage future study and conservation action aimed at them and similar islets.
{"title":"Results of the First Herpetological Survey of Israel’s Mediterranean Coastal Islets","authors":"Alex Slavenko, E. Maza, Yuval Itescu","doi":"10.30906/1026-2296-2021-28-4-231-236","DOIUrl":"https://doi.org/10.30906/1026-2296-2021-28-4-231-236","url":null,"abstract":"Small islets in the Mediterranean Sea are often home to reptiles, typically representing an impoverished sample of the continental fauna, yet with high population densities and signs of rapid morphological and behavioral evolution. In this paper, we present the first herpetofaunal survey of several small islet clusters in close proximity to the Mediterranean coast of Israel, only recently geologically separated from the mainland. We performed surveys of five islets during March of 2017 – 2018 and recorded the presence of five different species of reptiles on four of the surveyed islets. Species richness varied between 1 and 4 species, and appeared to be correlated with island area, with a distinct nested structure. Reptile species may have colonized the islets by natural dispersal from nearby coastal populations, or by hitch-hiking on fishing boats and similar methods of human-assisted dispersal. Alternatively, the recorded reptiles may represent relictual populations from earlier geologic periods, when lower sea-levels supported continuous land-bridges between the islets and the mainland. These insular reptile populations require further study to establish the exact means of colonization and describe if and how they differ from mainland populations. We stress the importance of such small Mediterranean islets such as these as centers of unique biodiversity and encourage future study and conservation action aimed at them and similar islets.","PeriodicalId":48693,"journal":{"name":"Russian Journal of Herpetology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42289866","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 : 2021-09-01DOI: 10.30906/1026-2296-2021-28-4-219-224
D. Le, Y. Do, T. Tran, T. Nguyen
Based on a new herpetological collection from the Mu Cang Chai Species and Habitat Conservation Area, Yen Bai Province, we report two new records of amphibians, viz. Leptobrachella niveimontis Chen, Poyarkov, Yuan et Che, 2020 and Leptobrachella yingjiangensis (Yang, Zeng et Wang, 2018) from Vietnam. Morphological descriptions and ecological notes of afore mentioned species are provided on the basis of new materials. Our findings increase the species number of the genus Leptobrachella to 29 in Vietnam.
根据云南省木仓寨物种和栖息地保护区的一个新的爬行动物学资料，我们报道了两个两栖动物的新记录，即来自越南的Nivemontis Leptobrachella Chen，Poyarkov，Yuan et Che，2020和yingjiangensis Leptobrahella（Yang，Zeng et Wang，2018）。在新材料的基础上，对上述物种进行了形态学描述和生态学注释。我们的研究结果使越南细齿管菌属的物种数量增加到29种。
{"title":"Two New Records of Leptobrachella (Anura: Megophryidae) from Vietnam","authors":"D. Le, Y. Do, T. Tran, T. Nguyen","doi":"10.30906/1026-2296-2021-28-4-219-224","DOIUrl":"https://doi.org/10.30906/1026-2296-2021-28-4-219-224","url":null,"abstract":"Based on a new herpetological collection from the Mu Cang Chai Species and Habitat Conservation Area, Yen Bai Province, we report two new records of amphibians, viz. Leptobrachella niveimontis Chen, Poyarkov, Yuan et Che, 2020 and Leptobrachella yingjiangensis (Yang, Zeng et Wang, 2018) from Vietnam. Morphological descriptions and ecological notes of afore mentioned species are provided on the basis of new materials. Our findings increase the species number of the genus Leptobrachella to 29 in Vietnam.","PeriodicalId":48693,"journal":{"name":"Russian Journal of Herpetology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45487994","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 : 2021-09-01DOI: 10.30906/1026-2296-2021-28-4-197-204
E. C. López González, L. Odetti, G. Poletta, N. Denslow, K. Kroll, P. Siroski, María Virginia Parachú Marcó
Transcriptomic information provides fundamental insights into biological processes and can be used to determine gene expression in cell, tissue, or organism under specific physiological conditions, or in response to any environmental perturbation. Extraction of high quality RNA is a challenging step mainly in non-traditional organisms, and protocols for preservation and isolation need to be adjusted in many cases. In the present work, we aimed to develop a protocol for preservation and isolation of high-quality and quantity of RNA from blood and liver tissues of Caiman latirostris. Three preservation methods were tested: 1) flash freezing (LN2) and storage at –80°C; 2) RNAlater® conservation with progressive cooling up to –80°C); 3) preservation in TRIzol® reagent, flash freezing in LN2 and storage at –80°C. Methods 1 and 2 were tested for liver, while 2 and 3 for blood. Our results showed that both preservation methods resulted in excellent outcomes for liver samples. For blood samples however, TRIzol® preservation was an efficient procedure for adequate RNA quality, quantity, and integrity, while conservation in RNAlater® solution was inadequate in both quality and quantity for an optimal RNA extraction. Appropriate protocols were established for each tissue and are being used now for transcriptomic studies in this sentinel organism.
{"title":"Optimizing Protocols for High-Quality RNA Extraction from Blood and Liver Tissues of the Broad-Snouted Caiman","authors":"E. C. López González, L. Odetti, G. Poletta, N. Denslow, K. Kroll, P. Siroski, María Virginia Parachú Marcó","doi":"10.30906/1026-2296-2021-28-4-197-204","DOIUrl":"https://doi.org/10.30906/1026-2296-2021-28-4-197-204","url":null,"abstract":"Transcriptomic information provides fundamental insights into biological processes and can be used to determine gene expression in cell, tissue, or organism under specific physiological conditions, or in response to any environmental perturbation. Extraction of high quality RNA is a challenging step mainly in non-traditional organisms, and protocols for preservation and isolation need to be adjusted in many cases. In the present work, we aimed to develop a protocol for preservation and isolation of high-quality and quantity of RNA from blood and liver tissues of Caiman latirostris. Three preservation methods were tested: 1) flash freezing (LN2) and storage at –80°C; 2) RNAlater® conservation with progressive cooling up to –80°C); 3) preservation in TRIzol® reagent, flash freezing in LN2 and storage at –80°C. Methods 1 and 2 were tested for liver, while 2 and 3 for blood. Our results showed that both preservation methods resulted in excellent outcomes for liver samples. For blood samples however, TRIzol® preservation was an efficient procedure for adequate RNA quality, quantity, and integrity, while conservation in RNAlater® solution was inadequate in both quality and quantity for an optimal RNA extraction. Appropriate protocols were established for each tissue and are being used now for transcriptomic studies in this sentinel organism.","PeriodicalId":48693,"journal":{"name":"Russian Journal of Herpetology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49009561","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 : 2021-07-21DOI: 10.30906/1026-2296-2021-28-3-152-162
Parinya Pawangkhanant, Ton Smits, Ian Dugdale, Kanokwan Yimyoo, T. Nguyen, C. Suwannapoom, N. Poyarkov
We report seven new country records of species of reptiles on the basis of recent herpetological surveys between 2015 – 2019 in southern Thailand: Gekko (Ptychozoon) cicakterbang, Dasia grisea, and Sphenomorphus sungaicolus from Yala Province; Gonocephalus liogaster, Gekko (Sundagekko) browni, Oligodon signatus, and Xenochrophis maculatus from Narathiwat Province. Our recent findings bring the total number of reptiles recorded in Thailand to 452 species. Furthermore, our results suggest that further intensified herpetological research efforts and international collaborations are required to increase our knowledge on the herpetofaunal diversity in the tropical rain forests of southern Thailand near the border with peninsular Malaysia.
{"title":"Photographic Records of Reptiles from Yala and Narathiwat Provinces Reveal Seven New Species for Thailand","authors":"Parinya Pawangkhanant, Ton Smits, Ian Dugdale, Kanokwan Yimyoo, T. Nguyen, C. Suwannapoom, N. Poyarkov","doi":"10.30906/1026-2296-2021-28-3-152-162","DOIUrl":"https://doi.org/10.30906/1026-2296-2021-28-3-152-162","url":null,"abstract":"We report seven new country records of species of reptiles on the basis of recent herpetological surveys between 2015 – 2019 in southern Thailand: Gekko (Ptychozoon) cicakterbang, Dasia grisea, and Sphenomorphus sungaicolus from Yala Province; Gonocephalus liogaster, Gekko (Sundagekko) browni, Oligodon signatus, and Xenochrophis maculatus from Narathiwat Province. Our recent findings bring the total number of reptiles recorded in Thailand to 452 species. Furthermore, our results suggest that further intensified herpetological research efforts and international collaborations are required to increase our knowledge on the herpetofaunal diversity in the tropical rain forests of southern Thailand near the border with peninsular Malaysia.","PeriodicalId":48693,"journal":{"name":"Russian Journal of Herpetology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44286999","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 : 2021-07-21DOI: 10.30906/1026-2296-2021-28-3-123-137
A. Aloufi, Z. Amr, M. A. Baker
A total of 44 species of amphibians and reptiles are reported from Al Madinah Al Munawwarah Province, Saudi Arabia. They include two species of amphibian in two families (Bufonidae and Dicroglossidae) and 42 reptiles belonging to 16 families (Agamidae, Boidae, Chamaeleonidae, Colubridae, Elapidae, Gekkonidae, Lacertidae, Lamprophiidae, Leptotyphlopidae, Phyllodactylidae, Psammophiidae, Scincidae, Sphaerodactylidae, Varanidae, Typhlopidae, and Viperidae). Platyceps sinai, Psammophis sibilans, Rhynchocalamus melanocephalus, are recorded for the first time to the herpetofauna of Saudi Arabia. Range expansion for Euphlyctis ehrenbergii and Acanthocercus adramitanus to northern Saudi Arabia is reported. Our records expand the known distribution range of the Arabian Cobra, Naja arabica, further northwest.
据报道，沙特阿拉伯Al Madinah Al Munawwarah省共有44种两栖动物和爬行动物。其中包括2科两栖动物2种(蟾科和双盲蝽科)和16科42种爬行动物(蟾科、波科、变色龙科、鞘翅目、壁虎科、乳虎科、蓝藻科、细叶藻科、叶藻科、沙蛉科、剑齿虎科、花叶藻科、Varanidae、叶藻科、蝮蛇科)。在沙乌地阿拉伯的爬虫动物群中，首次记录到西奈Platyceps sibilans, Rhynchocalamus melanocephalus。报道了在沙特阿拉伯北部扩张的Euphlyctis ehrenbergii和acanthococcus adramitanus。我们的记录扩大了已知的阿拉伯眼镜蛇的分布范围，Naja arabica，更西北。
{"title":"Reptiles and Amphibians of Al Madinah Al Munawwarah Province, Saudi Arabia","authors":"A. Aloufi, Z. Amr, M. A. Baker","doi":"10.30906/1026-2296-2021-28-3-123-137","DOIUrl":"https://doi.org/10.30906/1026-2296-2021-28-3-123-137","url":null,"abstract":"A total of 44 species of amphibians and reptiles are reported from Al Madinah Al Munawwarah Province, Saudi Arabia. They include two species of amphibian in two families (Bufonidae and Dicroglossidae) and 42 reptiles belonging to 16 families (Agamidae, Boidae, Chamaeleonidae, Colubridae, Elapidae, Gekkonidae, Lacertidae, Lamprophiidae, Leptotyphlopidae, Phyllodactylidae, Psammophiidae, Scincidae, Sphaerodactylidae, Varanidae, Typhlopidae, and Viperidae). Platyceps sinai, Psammophis sibilans, Rhynchocalamus melanocephalus, are recorded for the first time to the herpetofauna of Saudi Arabia. Range expansion for Euphlyctis ehrenbergii and Acanthocercus adramitanus to northern Saudi Arabia is reported. Our records expand the known distribution range of the Arabian Cobra, Naja arabica, further northwest.","PeriodicalId":48693,"journal":{"name":"Russian Journal of Herpetology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44141830","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 : 2021-07-21DOI: 10.30906/1026-2296-2021-28-3-170-174
N. Ananjeva, E. Golynsky, L. Mazanaeva
We present results of analysis and predictions of the potential distribution of the Caucasian rock agama Paralaudakia caucasia (Eichwald, 1831), based on an updated data set and using a distribution model generated with software Maxent (www.cs.princeton.edu/~schapire/maxent). The model was based on an updated data set of 238 localities, including 74 new records from Daghestan and Tajikistan. According to the generated model, the most suitable habitats of the Caucasian rock agama Paralaudakia caucasia are located in the Caucasus (southeastern Ciscaucasia and eastern Transcaucasia), south Turkmenistan and north-eastern Iran.
{"title":"Distribution Modeling of the Caucasian Rock Agama Paralaudakia caucasia (Eichwald, 1831), (Sauria: Agamidae) Based on an Updated Data Set","authors":"N. Ananjeva, E. Golynsky, L. Mazanaeva","doi":"10.30906/1026-2296-2021-28-3-170-174","DOIUrl":"https://doi.org/10.30906/1026-2296-2021-28-3-170-174","url":null,"abstract":"We present results of analysis and predictions of the potential distribution of the Caucasian rock agama Paralaudakia caucasia (Eichwald, 1831), based on an updated data set and using a distribution model generated with software Maxent (www.cs.princeton.edu/~schapire/maxent). The model was based on an updated data set of 238 localities, including 74 new records from Daghestan and Tajikistan. According to the generated model, the most suitable habitats of the Caucasian rock agama Paralaudakia caucasia are located in the Caucasus (southeastern Ciscaucasia and eastern Transcaucasia), south Turkmenistan and north-eastern Iran.","PeriodicalId":48693,"journal":{"name":"Russian Journal of Herpetology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44477371","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 : 2021-07-21DOI: 10.30906/1026-2296-2021-28-3-138-144
S. Lyapkov, A. Kidov, I. Stepankova, K. A. Afrin, S. Litvinchuk
The paper provides the first data about age structure and growth of the Zamda toad, Bufotes zamdaensis (Boulenger, 1882), from the Himachal Pradesh State (India). The study of age structure of toads was carried out using skeletochronology. The minimal and maximal ages in males of B. zamdaensis were 4 and 7 years, respectively, with mean age of 5.4 years. The majority of males (60%) were 5 years old. The age in females ranged from 5 to 9 years with mean value of 6.1 years. The majority of females (71%) were 5 – 6 years old. Males of B. zamdaensis can reach maturation after four winterings and females after five winterings. Unlike closely related species B. latastii, the growth rate in both sexes does not decrease significantly after the 1st and 2nd wintering and remains high after the 3rd and 4th wintering.
{"title":"Age Structure and Growth in the Zamda Toad, Bufotes zamdaensis (Anura, Bufonidae)","authors":"S. Lyapkov, A. Kidov, I. Stepankova, K. A. Afrin, S. Litvinchuk","doi":"10.30906/1026-2296-2021-28-3-138-144","DOIUrl":"https://doi.org/10.30906/1026-2296-2021-28-3-138-144","url":null,"abstract":"The paper provides the first data about age structure and growth of the Zamda toad, Bufotes zamdaensis (Boulenger, 1882), from the Himachal Pradesh State (India). The study of age structure of toads was carried out using skeletochronology. The minimal and maximal ages in males of B. zamdaensis were 4 and 7 years, respectively, with mean age of 5.4 years. The majority of males (60%) were 5 years old. The age in females ranged from 5 to 9 years with mean value of 6.1 years. The majority of females (71%) were 5 – 6 years old. Males of B. zamdaensis can reach maturation after four winterings and females after five winterings. Unlike closely related species B. latastii, the growth rate in both sexes does not decrease significantly after the 1st and 2nd wintering and remains high after the 3rd and 4th wintering.","PeriodicalId":48693,"journal":{"name":"Russian Journal of Herpetology","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47302967","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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