Pub Date : 2024-01-08DOI: 10.3897/herpetozoa.37.e111749
Hermilo Sánchez-Sánchez, Adriana Jocelyn Morales-Gonzaga, Ken Oyama, J. Carlos Alvarado-Avilés
Female reproductive effort is defined as the proportion of total energy or resources devoted to reproduction. In reptiles, there is frequently high inter- and intra-population variation related to several factors, such as food availability, climatic conditions, age and size, all of which, in turn, also influence survival and future reproduction. The present study is the first reproductive effort analysis of a population of the high-mountain scincid lizard Plestiodon copei in central Mexico, focusing on relative litter mass (RLM), investment per capita (INV) and productivity (PROD). We also compared the reproductive efficacy of P. copei to those of other Mexican congeners. We collected 24 gravid females of P. copei over a 4-year period and recorded a total of 90 neonates born in captivity. We found significant variation in neonatal mass amongst individual females and across years. We recorded an average litter size of 3.75 and an average litter mass of 1.25 g, which were positively correlated with both the size and total mass of the reproductive females. The RLM, INV and PROD values (0.301, 0.428 g and 1.236 g × year-1, respectively) for P. copei were greater than those for other Mexican species in the P. brevirostris group (0.290, 0.412 g and 1.135 g × year-1), revealing that females of P. copei from Tenango invest a comparatively high amount of their resources in reproduction.
雌性繁殖力是指用于繁殖的能量或资源占总能量或资源的比例。在爬行动物中，种群间和种群内的差异经常很大，这与多种因素有关，如食物的可获得性、气候条件、年龄和体型，所有这些因素反过来也会影响生存和未来的繁殖。本研究是首次对墨西哥中部高山鳞蜥 Plestiodon copei 种群的繁殖努力进行分析，重点关注相对产仔数（RLM）、人均投资（INV）和生产率（PROD）。我们还比较了 P. copei 与墨西哥其他同种蜥蜴的繁殖效率。我们收集了 24 只在 4 年内怀孕的雌性 P. copei，并记录了在人工饲养条件下出生的 90 只新生儿。我们发现，雌性个体之间以及不同年份之间的新生儿体重差异很大。我们记录的平均产仔数为 3.75 头，平均产仔质量为 1.25 克，这与繁殖雌性的体型和总质量呈正相关。Copei的RLM值、INV值和PROD值（分别为0.301、0.428克和1.236克×年-1）均大于P. brevirostris组中其他墨西哥物种的RLM值、INV值和PROD值（分别为0.290、0.412克和1.135克×年-1），这表明Tenango的雌性P.
{"title":"Reproductive effort of Plestiodon copei (Squamata, Scincidae), a highland viviparous lizard from Central Mexico","authors":"Hermilo Sánchez-Sánchez, Adriana Jocelyn Morales-Gonzaga, Ken Oyama, J. Carlos Alvarado-Avilés","doi":"10.3897/herpetozoa.37.e111749","DOIUrl":"https://doi.org/10.3897/herpetozoa.37.e111749","url":null,"abstract":"\u0000Female reproductive effort is defined as the proportion of total energy or resources devoted to reproduction. In reptiles, there is frequently high inter- and intra-population variation related to several factors, such as food availability, climatic conditions, age and size, all of which, in turn, also influence survival and future reproduction. The present study is the first reproductive effort analysis of a population of the high-mountain scincid lizard Plestiodon copei in central Mexico, focusing on relative litter mass (RLM), investment per capita (INV) and productivity (PROD). We also compared the reproductive efficacy of P. copei to those of other Mexican congeners. We collected 24 gravid females of P. copei over a 4-year period and recorded a total of 90 neonates born in captivity. We found significant variation in neonatal mass amongst individual females and across years. We recorded an average litter size of 3.75 and an average litter mass of 1.25 g, which were positively correlated with both the size and total mass of the reproductive females. The RLM, INV and PROD values (0.301, 0.428 g and 1.236 g × year-1, respectively) for P. copei were greater than those for other Mexican species in the P. brevirostris group (0.290, 0.412 g and 1.135 g × year-1), revealing that females of P. copei from Tenango invest a comparatively high amount of their resources in reproduction.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139397333","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 : 2023-12-28DOI: 10.3897/herpetozoa.36.e112826
Lukáš Weber, Jan Růžička, Ivan H. Tuf, Martin Rulík
In animals, migration is an evolutionary adaptation to manage seasonally varying habitats. Often driven by climatic changes or resource availability, amphibians then migrate from their hibernation sites to their breeding grounds. This research focused on the migratory habits of the Great crested newt (Triturus cristatus). The study explored factors like gender, body size, and environmental determinants, noting that immigration and emigration events proved distinct during the year. Results unveiled that males typically reached ponds first, with temperature being pivotal: males preferred up to 5 °C, females around 10 °C, while juveniles moved as temperatures increase. Wind velocity affected larger newts, around 120 mm, prompting them to migrate with stronger winds. Notably, heavy rainfall favored migration of newts of roughly 60 mm size. Humidity displayed gender-based trends: males associated positively with average levels, females showed aversion above 50%, and juveniles leaned towards drier conditions. Emigration patterns mirrored these findings, emphasizing roles of temperature, wind, and humidity. The effect of moonlight is not statistically significant. These findings provide valuable insights into the environmental factors influencing the migration of T. cristatus, which may guide future conservation efforts.
{"title":"Migration strategy of the Great crested newt (Triturus cristatus) in an artificial pond","authors":"Lukáš Weber, Jan Růžička, Ivan H. Tuf, Martin Rulík","doi":"10.3897/herpetozoa.36.e112826","DOIUrl":"https://doi.org/10.3897/herpetozoa.36.e112826","url":null,"abstract":"In animals, migration is an evolutionary adaptation to manage seasonally varying habitats. Often driven by climatic changes or resource availability, amphibians then migrate from their hibernation sites to their breeding grounds. This research focused on the migratory habits of the Great crested newt (Triturus cristatus). The study explored factors like gender, body size, and environmental determinants, noting that immigration and emigration events proved distinct during the year. Results unveiled that males typically reached ponds first, with temperature being pivotal: males preferred up to 5 °C, females around 10 °C, while juveniles moved as temperatures increase. Wind velocity affected larger newts, around 120 mm, prompting them to migrate with stronger winds. Notably, heavy rainfall favored migration of newts of roughly 60 mm size. Humidity displayed gender-based trends: males associated positively with average levels, females showed aversion above 50%, and juveniles leaned towards drier conditions. Emigration patterns mirrored these findings, emphasizing roles of temperature, wind, and humidity. The effect of moonlight is not statistically significant. These findings provide valuable insights into the environmental factors influencing the migration of T. cristatus, which may guide future conservation efforts.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139057446","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 : 2023-12-22DOI: 10.3897/herpetozoa.36.e107328
Claudio Correa, José Ignacio Osses, J. Morales, Juan Carlos Ortiz
Telmatobufo venustus was one of the rarest endemic amphibians of Chile until 2020. Prior to that year, this species had been known in four localities, three of them with uncertain location, including the type locality. However, three new precise localities have been reported successively since 2020, all based on a few individuals. In this study, we review the geographic information on the species and, based on literature and other documents, tentatively locate the three localities with uncertain location published before 2020. Furthermore, we describe a new locality near the uncertain southern end of its distribution. Although the number of localities has considerably increased since 2020, the species still has a highly fragmented known distribution, its type locality and southern limit cannot be located with certainty, and it is found in only two state-protected areas. Due to these reasons and because threats to the habitat have been identified in some localities, we suggest keeping the species as Endangered.
{"title":"Geographic distribution of the rare and endangered Telmatobufo venustus (Philippi, 1899) (Anura, Calyptocephalellidae), with the description of a new locality and comments on the type locality","authors":"Claudio Correa, José Ignacio Osses, J. Morales, Juan Carlos Ortiz","doi":"10.3897/herpetozoa.36.e107328","DOIUrl":"https://doi.org/10.3897/herpetozoa.36.e107328","url":null,"abstract":"Telmatobufo venustus was one of the rarest endemic amphibians of Chile until 2020. Prior to that year, this species had been known in four localities, three of them with uncertain location, including the type locality. However, three new precise localities have been reported successively since 2020, all based on a few individuals. In this study, we review the geographic information on the species and, based on literature and other documents, tentatively locate the three localities with uncertain location published before 2020. Furthermore, we describe a new locality near the uncertain southern end of its distribution. Although the number of localities has considerably increased since 2020, the species still has a highly fragmented known distribution, its type locality and southern limit cannot be located with certainty, and it is found in only two state-protected areas. Due to these reasons and because threats to the habitat have been identified in some localities, we suggest keeping the species as Endangered.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138946597","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 : 2023-12-22DOI: 10.3897/herpetozoa.36.e113656
R. Naveen, Shuo Liu, S. Chandramouli, S. Babu, P. Karunakaran, H. N. Kumara
Rhacophorus tuberculatus and Rhacophorus verrucopus are two morphologically similar species described in 1871 and 1983 respectively. Their taxonomic distinctiveness has been questioned in the past. In the current study, we encountered frogs that we confer to R. tuberculatus based on morphological similarity to a syntype of this species. We redescribe the species based on a re-examination of a syntype, which is designated as a lectotype here, and additional specimens from Garo hills of Meghalaya. We also present molecular data, natural history notes, and report a range extension of this species. Molecular phylogenetic analysis based on the 16S rRNA fragment revealed minimal genetic divergences (0.20–1.74% uncorrected p-distance) between specimens identified as either R. tuberculatus or R. verrucopus from different locations. On the basis of molecular data and morphological characteristics, we conclude that R. verrucopus is a junior synonym of R. tuberculatus.
Rhacophorus tuberculatus 和 Rhacophorus verrucopus 是分别于 1871 年和 1983 年描述的两个形态相似的物种。它们在分类学上的独特性过去一直受到质疑。在目前的研究中，我们遇到了一些蛙类，根据它们与 R. tuberculatus 的同种异形的形态相似性，我们将它们归入 R. tuberculatus。我们根据对一个合模式标本（在此被指定为讲座模式）的重新研究，以及来自梅加拉亚邦加罗山的其他标本，对该物种进行了重新描述。我们还提供了分子数据、自然史笔记，并报告了该物种的分布范围。基于 16S rRNA 片段的分子系统发育分析表明，不同地点的 R. tuberculatus 或 R. verrucopus 标本之间的遗传差异极小（0.20-1.74% 未校正 p-distance）。根据分子数据和形态特征，我们认为 R. verrucopus 是 R. tuberculatus 的初级异名。
{"title":"Redescription of Rhacophorus tuberculatus (Anderson, 1871) and the validity of Rhacophorus verrucopus Huang, 1983","authors":"R. Naveen, Shuo Liu, S. Chandramouli, S. Babu, P. Karunakaran, H. N. Kumara","doi":"10.3897/herpetozoa.36.e113656","DOIUrl":"https://doi.org/10.3897/herpetozoa.36.e113656","url":null,"abstract":"Rhacophorus tuberculatus and Rhacophorus verrucopus are two morphologically similar species described in 1871 and 1983 respectively. Their taxonomic distinctiveness has been questioned in the past. In the current study, we encountered frogs that we confer to R. tuberculatus based on morphological similarity to a syntype of this species. We redescribe the species based on a re-examination of a syntype, which is designated as a lectotype here, and additional specimens from Garo hills of Meghalaya. We also present molecular data, natural history notes, and report a range extension of this species. Molecular phylogenetic analysis based on the 16S rRNA fragment revealed minimal genetic divergences (0.20–1.74% uncorrected p-distance) between specimens identified as either R. tuberculatus or R. verrucopus from different locations. On the basis of molecular data and morphological characteristics, we conclude that R. verrucopus is a junior synonym of R. tuberculatus.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138945049","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 : 2023-12-18DOI: 10.3897/herpetozoa.36.e107947
Ali Gholamifard, Mehmet Kürşat Şahin
Reptiles have a crucial part in maintaining global biodiversity and the functioning of dynamic ecosystems, owing to their ecological roles and functions. Nevertheless, these organisms are susceptible to human-induced disruptions and the deterioration of their habitats, leading to their categorization as the third most endangered group of vertebrates on a global scale. Understanding the spatial distribution of reptiles is crucial due to their often specific habitat needs and limited vagility. Morgan’s black cobra (Walterinnesia morgani) is a secretive venomous snake species that has thus far received little attention in Iranian scientific literature. The aim of the present study was to determine the existing distribution pattern of the cobra and to speculate on how climatic changes might affect it. Maximum entropy modeling was used to examine a dataset consisting of 16 occurrence records gleaned from field observations and the literature. The niche of the species was predicted using current and future climate change forecasts and bioclimatic and topographical characteristics. The models predicted a future reduction in the wide distribution region of W. morgani in southern and western Iran. It was discovered that climatic factors like temperature range, precipitation dynamics, and river proximity all played a key role in shaping the pattern of distribution. The predicted suitable areas for W. morgani were dependent on water sources; however, future scenarios showed a decline in suitable habitats. This study underscores the importance of conservation efforts in light of the potential implications of climate change on this species. To further understand the range shifts and adaptive strategies of the species, further study of its ecology and dispersal dynamics is required.
{"title":"Range dynamics of Walterinnesia morgani (Serpentes, Elapidae) during climatic oscillations in Iran","authors":"Ali Gholamifard, Mehmet Kürşat Şahin","doi":"10.3897/herpetozoa.36.e107947","DOIUrl":"https://doi.org/10.3897/herpetozoa.36.e107947","url":null,"abstract":"Reptiles have a crucial part in maintaining global biodiversity and the functioning of dynamic ecosystems, owing to their ecological roles and functions. Nevertheless, these organisms are susceptible to human-induced disruptions and the deterioration of their habitats, leading to their categorization as the third most endangered group of vertebrates on a global scale. Understanding the spatial distribution of reptiles is crucial due to their often specific habitat needs and limited vagility. Morgan’s black cobra (Walterinnesia morgani) is a secretive venomous snake species that has thus far received little attention in Iranian scientific literature. The aim of the present study was to determine the existing distribution pattern of the cobra and to speculate on how climatic changes might affect it. Maximum entropy modeling was used to examine a dataset consisting of 16 occurrence records gleaned from field observations and the literature. The niche of the species was predicted using current and future climate change forecasts and bioclimatic and topographical characteristics. The models predicted a future reduction in the wide distribution region of W. morgani in southern and western Iran. It was discovered that climatic factors like temperature range, precipitation dynamics, and river proximity all played a key role in shaping the pattern of distribution. The predicted suitable areas for W. morgani were dependent on water sources; however, future scenarios showed a decline in suitable habitats. This study underscores the importance of conservation efforts in light of the potential implications of climate change on this species. To further understand the range shifts and adaptive strategies of the species, further study of its ecology and dispersal dynamics is required.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138714676","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}
The Malayan Banded Wolf Snake Lycodon subcinctus Boie, 1827 once included three subspecies, namely L. s. subcinctus Boie, 1827, L. s. sealei Leviton, 1955, and L. s. maculatus (Cope, 1985). Thereafter, L. s. sealei has been elevated to species level, and the taxonomic status of L. s. maculatus has not been resolved. We sequenced the mitochondrial cytochrome b (cytb) gene fragments of eight specimens of L. s. maculatus from China, including three from the adjacent areas of its type locality. Combining the sequences obtained from GenBank, we reconstructed a molecular phylogeny and reevaluated the taxonomic status of L. s. maculatus. Phylogenetic analysis revealed three highly divergent lineages within L. subcinctus sensu lato which correspond to L. subcinctus sensu stricto, L. sealei, and L. s. maculatus, respectively. Coupled with morphological comparison, we elevate L. s. maculatus to full species and redescribe it based on the type and freshly collected material.
{"title":"Taxonomic status of Lycodon subcinctus sensu lato in China (Serpentes, Colubridae)","authors":"Shuo Liu, Mian Hou, Bo Cai, Shimin Li, Zhongxu Zhang, Rui Yu, Dingqi Rao, Liang Zhang","doi":"10.3897/herpetozoa.36.e114206","DOIUrl":"https://doi.org/10.3897/herpetozoa.36.e114206","url":null,"abstract":"\u0000The Malayan Banded Wolf Snake Lycodon subcinctus Boie, 1827 once included three subspecies, namely L. s. subcinctus Boie, 1827, L. s. sealei Leviton, 1955, and L. s. maculatus (Cope, 1985). Thereafter, L. s. sealei has been elevated to species level, and the taxonomic status of L. s. maculatus has not been resolved. We sequenced the mitochondrial cytochrome b (cytb) gene fragments of eight specimens of L. s. maculatus from China, including three from the adjacent areas of its type locality. Combining the sequences obtained from GenBank, we reconstructed a molecular phylogeny and reevaluated the taxonomic status of L. s. maculatus. Phylogenetic analysis revealed three highly divergent lineages within L. subcinctus sensu lato which correspond to L. subcinctus sensu stricto, L. sealei, and L. s. maculatus, respectively. Coupled with morphological comparison, we elevate L. s. maculatus to full species and redescribe it based on the type and freshly collected material.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138503256","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}
The taxonomic status of Gloydius shedaoensis qianshanensis Li, 1999 has long been debated due to its narrow distribution range, low population, loss of type specimens, and lack of detailed descriptions. Neotypes were designated based on newly collected specimens in the Qianshan Mountain area, detailed comparisons between G. s. shedaoensis , and G. s. qianshanensis were recorded, while we redescribed G. s. qianshanensis . PCA results based on the external morphology of the two subspecies of G. shedaoensis demonstrate the inter-population distinction of G. s. shedaoensis and G. s. qianshanensis , including head length, and dorsoventral-postorbital stripe width. Additionally, the ecological data of G. s. qianshanensis were recorded as supplements while providing further conservation strategies.
{"title":"Neotype designation and redescription of Gloydius shedaoensis qianshanensis Li, 1999 (Squamata, Serpentes, Viperidae)","authors":"Xian-Chun Qiu, Xiao-Ping Wang, Shuo Qi, Jin-Ze Wang, Zu-Yao Xia, Hao-Tian Wang, Sheng-Bo Zhou, Guo-Xu Yu, Zhong-Xun Wu, Jing-Song Shi, Pi-Peng Li","doi":"10.3897/herpetozoa.36.e106943","DOIUrl":"https://doi.org/10.3897/herpetozoa.36.e106943","url":null,"abstract":"The taxonomic status of Gloydius shedaoensis qianshanensis Li, 1999 has long been debated due to its narrow distribution range, low population, loss of type specimens, and lack of detailed descriptions. Neotypes were designated based on newly collected specimens in the Qianshan Mountain area, detailed comparisons between G. s. shedaoensis , and G. s. qianshanensis were recorded, while we redescribed G. s. qianshanensis . PCA results based on the external morphology of the two subspecies of G. shedaoensis demonstrate the inter-population distinction of G. s. shedaoensis and G. s. qianshanensis , including head length, and dorsoventral-postorbital stripe width. Additionally, the ecological data of G. s. qianshanensis were recorded as supplements while providing further conservation strategies.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135569358","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 : 2023-10-20DOI: 10.3897/herpetozoa.36.e90412
Michael A. Tabug, Levy V. Necesito, Arvin C. Diesmos
Sexual head dimorphism is a condition where head morphology of male and female of the same species differ, which provides an additional way to recognise sex for species identification. Fifty four adult Philippine Spotted Flying Lizards, Draco spilopterus , were examined from four populations in the Luzon Island, Philippines to assess whether head morphometry can drive sexual dimorphism. We identified the sex and measured five morphometric measurements of the head (jaw length, jaw width, head height, head length, head width) and snout-vent length. A univariate analysis of the five morphometric measurements showed clear sexual dimorphism. Considering all individuals, female heads are significantly larger than those of males (all p-values < 0.05). We also revealed major differences in head size amongst the four populations due to their geographical location and habitat differences.
{"title":"Notes on the pattern of head size in the Philippine Spotted Flying Lizard, Draco spilopterus (Weigmann, 1834), within Luzon Biogeographic Region, Philippines","authors":"Michael A. Tabug, Levy V. Necesito, Arvin C. Diesmos","doi":"10.3897/herpetozoa.36.e90412","DOIUrl":"https://doi.org/10.3897/herpetozoa.36.e90412","url":null,"abstract":"Sexual head dimorphism is a condition where head morphology of male and female of the same species differ, which provides an additional way to recognise sex for species identification. Fifty four adult Philippine Spotted Flying Lizards, Draco spilopterus , were examined from four populations in the Luzon Island, Philippines to assess whether head morphometry can drive sexual dimorphism. We identified the sex and measured five morphometric measurements of the head (jaw length, jaw width, head height, head length, head width) and snout-vent length. A univariate analysis of the five morphometric measurements showed clear sexual dimorphism. Considering all individuals, female heads are significantly larger than those of males (all p-values &lt; 0.05). We also revealed major differences in head size amongst the four populations due to their geographical location and habitat differences.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135616652","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 : 2023-10-16DOI: 10.3897/herpetozoa.36.e103198
Abderrahim S’Khifa, Ana Pereira, Mohamed Amine Samlali, Tahar Slimani, D. James Harris, Raquel Xavier
Determining the dietary niche is an essential part of any conservation strategy, and for modeling the community responses to climate change. DNA metabarcoding methods are revolutionizing such approaches, allowing higher taxonomic resolution than typically possible using microscopy. However, few studies have compared directly the approaches to evaluate the differences in methodology. Here we assess the dietary niches of two genetically diverse populations of Atlantolacerta andreanskyi , a lizard endemic to the Atlas Mountains, Morocco, using DNA metabarcoding of faecal samples, and for one of these we compared the results to two previously published assessments of diets obtained using microscopy of pellets and stomach contents respectively. While results at the Order level were similar, the higher taxonomic resolution obtained in this study provided new insights into the dietary niche of this species. Comparisons between the two populations further highlighted how ecologically distinct these are.
{"title":"Exploring the dietary niche of Atlantolacerta andreanskyi (Lacertidae) using DNA metabarcoding","authors":"Abderrahim S’Khifa, Ana Pereira, Mohamed Amine Samlali, Tahar Slimani, D. James Harris, Raquel Xavier","doi":"10.3897/herpetozoa.36.e103198","DOIUrl":"https://doi.org/10.3897/herpetozoa.36.e103198","url":null,"abstract":"Determining the dietary niche is an essential part of any conservation strategy, and for modeling the community responses to climate change. DNA metabarcoding methods are revolutionizing such approaches, allowing higher taxonomic resolution than typically possible using microscopy. However, few studies have compared directly the approaches to evaluate the differences in methodology. Here we assess the dietary niches of two genetically diverse populations of Atlantolacerta andreanskyi , a lizard endemic to the Atlas Mountains, Morocco, using DNA metabarcoding of faecal samples, and for one of these we compared the results to two previously published assessments of diets obtained using microscopy of pellets and stomach contents respectively. While results at the Order level were similar, the higher taxonomic resolution obtained in this study provided new insights into the dietary niche of this species. Comparisons between the two populations further highlighted how ecologically distinct these are.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136113347","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 : 2023-10-09DOI: 10.3897/herpetozoa.36.e108125
Tuo Shen, Shize Li, Jing Liu, Guangrong Li, Xi Xiao, Haijun Su
In this study, the advertisement calls of Leptobrachella suiyangensis and Leptobrachella bashaensis are described. The advertisement call of L. suiyangensis includes simple and complex calls, with four different call types and a dominant frequency ranging 4.13–4.82 kHz. The advertisement call of L. bashaensis consists of a single note, with a dominant frequency 6.03–6.46 kHz. We compare the advertisement calls with other species in the genus Leptobrachella , and discuss the definitions of primary advertisement calls and secondary advertisement calls. Our results provide basic data for further acoustic, taxonomic and ecological studies in the genus Leptobrachella .
{"title":"Advertisement calls of Leptobrachella suiyangensis and Leptobrachella bashaensis (Anura, Megophryidae)","authors":"Tuo Shen, Shize Li, Jing Liu, Guangrong Li, Xi Xiao, Haijun Su","doi":"10.3897/herpetozoa.36.e108125","DOIUrl":"https://doi.org/10.3897/herpetozoa.36.e108125","url":null,"abstract":"In this study, the advertisement calls of Leptobrachella suiyangensis and Leptobrachella bashaensis are described. The advertisement call of L. suiyangensis includes simple and complex calls, with four different call types and a dominant frequency ranging 4.13–4.82 kHz. The advertisement call of L. bashaensis consists of a single note, with a dominant frequency 6.03–6.46 kHz. We compare the advertisement calls with other species in the genus Leptobrachella , and discuss the definitions of primary advertisement calls and secondary advertisement calls. Our results provide basic data for further acoustic, taxonomic and ecological studies in the genus Leptobrachella .","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135095672","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：