Current Herpetology最新文献_第2页

Life History Traits and Body Size in Males Populations of Boana riojana (Anura: Hylidae) from Central Argentine 阿根廷中部 Boana riojana（Anura: Hylidae）雄性种群的生活史特征和体型

IF 0.7 4区生物学

Current Herpetology Pub Date : 2024-03-01 DOI: 10.5358/hsj.43.68

M. Baraquet, P. Grenat, Manuel A. Otero, Favio E. Pollo, N. Salas, A. Martino

引用次数: 0

Phylogeography of the Miyako Toad, Bufo gargarizans miyakonis (Anura: Bufonidae), Inferred from Mitochondrial Sequence Data 从线粒体序列数据推断宫古蟾蜍、大蟾蜍的系统发育地理学（Anura：蟾蜍科）

IF 0.7 4区生物学

Current Herpetology Pub Date : 2023-08-25 DOI: 10.5358/hsj.42.144

Mikio Kasatani, H. Takeuchi

{"title":"Phylogeography of the Miyako Toad, Bufo gargarizans miyakonis (Anura: Bufonidae), Inferred from Mitochondrial Sequence Data","authors":"Mikio Kasatani, H. Takeuchi","doi":"10.5358/hsj.42.144","DOIUrl":"https://doi.org/10.5358/hsj.42.144","url":null,"abstract":"Abstract: The Miyako toad, Bufo gargarizans miyakonis, is a subspecies endemic to the Miyako Islands of the Ryukyu Archipelago. The distribution of B. g. miyakonis is curious since no toads are found on other islands in the remaining part of the Ryukyu Archipelago. In this study, we conducted phylogenetic estimation and population genetic analyses using sequence data of the mitochondrial control region to clarify the phylogenetic position of B. g. miyakonis in the B. gargarizans species group and its population history. Results of phylogenetic analyses suggested that B. g. miyakonis was closely related to eastern populations of B. gargarizans and that there is incomplete lineage sorting among these populations. The divergence time between B. g. miyakonis and its closest lineages was estimated to be 0.54–0.75 Ma, the Middle Pleistocene, which was a little younger than the estimated value provided by the previous study. It is probable that the migration of the ancestor of B. g. miyakonis was strongly affected by the Middle Pleistocene glacial cycle. Population genetics analyses suggested that this subspecies experienced a rapid population size expansion, and that there is moderate genetic differentiation of sub-populations. Although the B. g. miyakonis population has a relatively high-level genetic diversity, it is also unique, having a significant number of accumulated mutations following rapid demographic expansion.","PeriodicalId":56053,"journal":{"name":"Current Herpetology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48689541","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}

引用次数: 0

Clay Model Reveals the Difference in Day and Night Predation Rates on Vietnam Warty Newt (Caudata: Salamandridae) 黏土模型揭示越南疣蝾螈(尾科:蝾螈科)昼夜捕食率的差异

IF 0.7 4区生物学

Current Herpetology Pub Date : 2023-08-25 DOI: 10.5358/hsj.42.124

D. Van Tran, K. Nishikawa

{"title":"Clay Model Reveals the Difference in Day and Night Predation Rates on Vietnam Warty Newt (Caudata: Salamandridae)","authors":"D. Van Tran, K. Nishikawa","doi":"10.5358/hsj.42.124","DOIUrl":"https://doi.org/10.5358/hsj.42.124","url":null,"abstract":"Abstract: Studying the relationships between predators and their prey is generally complex but provides valuable knowledge into the process of evolution. The clay model method is a technique that has been widely used to assess prey-predator interaction. In the study, we used clay models of the Vietnam warty newt (Paramesotriton deloustali) to evaluate its predator pressures in Tam Dao National Park (NP), northern Vietnam. We also employed camera traps to detect specific predators of the newt in nature. Our camera trap results showed that northern treeshrew (Tupaia belangeri), rats (Rattus sp.), and greater coucal (Centropus sinensis) are predators of the newt in Tam Dao NP. For the clay model experiment observed attacks on the head of clay models were triple those expected by chance, indicating that predators perceived the clay model as actual prey items. The proportions on the models predated upon differed in three habitat types: broadleaf evergreen forests, mixed broadleaf evergreen and bamboo forests, and bamboo forests. We also detected that the attacks on the models were mainly made by mammals. Attack rates at nighttime were three times higher than during the daytime.","PeriodicalId":56053,"journal":{"name":"Current Herpetology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45963682","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}

引用次数: 0

Spatial Variation in Egg Sac Transparency of the Japanese Black Salamander, Hynobius nigrescens, Related to Environmental Gradients in the Ryohaku Mountains, Ishikawa Prefecture 石川县亮八山日本黑蝾螈卵囊透明度的空间变异与环境梯度有关

IF 0.7 4区生物学

Current Herpetology Pub Date : 2023-08-25 DOI: 10.5358/hsj.42.229

Kento Eguchi, Yusuke Ueno

{"title":"Spatial Variation in Egg Sac Transparency of the Japanese Black Salamander, Hynobius nigrescens, Related to Environmental Gradients in the Ryohaku Mountains, Ishikawa Prefecture","authors":"Kento Eguchi, Yusuke Ueno","doi":"10.5358/hsj.42.229","DOIUrl":"https://doi.org/10.5358/hsj.42.229","url":null,"abstract":"Abstract: The Japanese black salamander, Hynobius nigrescens, is endemic to Japan and breeds in still water. Egg sacs of three colors (white, intermediate, and transparent) have been identified to date. However, the cause of this variation is not well understood. Therefore, we conducted a survey within the Ryohaku Mountains, where genetic differences are assumed to be small, and investigated egg sac color type in 10 spawning ponds. Our results confirmed that the ratio of the intermediate and transparent types increases with altitude. Regarding egg sac color type at each altitude, all egg sacs found above 740 m asl were white, whereas the transparent and intermediate types began to appear from at or above 740 m. As altitude increased, the incidence of the white type decreased and that of the transparent and intermediate types increased. In addition, a redundancy analysis was performed to determine the relationship between egg sac color and the topographical and meteorological conditions and to clarify the results for each pond. The analysis revealed that maximum snow depth was strongly correlated with an increase in the number of egg sacs of intermediate and transparent types.","PeriodicalId":56053,"journal":{"name":"Current Herpetology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48222556","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}

引用次数: 0

Long-Term Rearing of Two Cynops Species and Fertility of Old Cynops ensicauda popei (Amphibia: Urodela) 两种Cynops的长期饲养及老Cynops ensicauda popei的育性（两栖纲：Urodela）

IF 0.7 4区生物学

Current Herpetology Pub Date : 2023-08-25 DOI: 10.5358/hsj.42.210

Hiroki Shiroma, Tatsuhiro Tokuda, Ai Tokuda, Ryocho Kamimura, S. Takenaka, A. Tominaga

引用次数: 0

Feeding Habits of Frogs in the Tottori Sand Dunes, Tottori Prefecture, Western Japan 日本西部鸟取县鸟取沙丘中青蛙的摄食习性

IF 0.7 4区生物学

Current Herpetology Pub Date : 2023-08-25 DOI: 10.5358/hsj.42.116

H. Chiba, S. Karasawa

{"title":"Feeding Habits of Frogs in the Tottori Sand Dunes, Tottori Prefecture, Western Japan","authors":"H. Chiba, S. Karasawa","doi":"10.5358/hsj.42.116","DOIUrl":"https://doi.org/10.5358/hsj.42.116","url":null,"abstract":"Abstract: To characterize the prey composition of frogs inhabiting the Tottori Sand Dunes, we examined the stomach contents of 141 individuals of five species (Dryophytes japonicus, Rana japonica, Pelophylax nigromaculatus, Fejervarya kawamurai, and Lithobates catesbeianus). Stomach contents were obtained from 86 frogs. A total of 356 individuals of prey were obtained from 50 P. nigromaculatus. Species in the orders Coleoptera and Araneae were frequently observed in the diets of P. nigromaculatus, but the most common prey item was Labidura riparia in the order Dermaptera (Class Hexapoda); its numerical percentage and frequency of occurrence percentage were 26.7% and 74%, respectively. Labidura riparia was also the most common prey item in the diets of the other four frog species, although the sample sizes for the other species were small. These findings suggest that when P. nigromaculatus migrated to new habitats (e.g., coastal habitats in our study), the immigrant frogs may be able to change its diet in response to the change in available prey items in the habitats. The plastic prey consumption in response to variations in prey resources might be an important factor for its survival in new habitats.","PeriodicalId":56053,"journal":{"name":"Current Herpetology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43594470","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}

引用次数: 0

A New Brown Frog from the Goto Islands, Japan with Taxonomic Revision on the Subspecific Relationships of Rana tagoi (Amphibia: Anura: Ranidae) 日本后藤岛一种新的褐蛙——对田蛙亚种亲缘关系的分类学修订（两栖纲：无尾蛙：蛙科）

IF 0.7 4区生物学

Current Herpetology Pub Date : 2023-08-25 DOI: 10.5358/hsj.42.191

Koshiro Eto, M. Matsui

引用次数: 0

Uncommon Diet of the Toad Rhinella marina (Anura: Bufonidae) in a Rural Zone of the Amazon Forest in Brazil 在巴西亚马逊森林的农村地区，蟾蜍的不寻常饮食(无尾目:蟾蜍科)

IF 0.7 4区生物学

Current Herpetology Pub Date : 2023-08-25 DOI: 10.5358/hsj.42.136

B. S. Sant’Anna, Rougles Pereira Braga

{"title":"Uncommon Diet of the Toad Rhinella marina (Anura: Bufonidae) in a Rural Zone of the Amazon Forest in Brazil","authors":"B. S. Sant’Anna, Rougles Pereira Braga","doi":"10.5358/hsj.42.136","DOIUrl":"https://doi.org/10.5358/hsj.42.136","url":null,"abstract":"Abstract: The aim of this study was to investigate the diet of Rhinella marina by comparing the availability of food in its environment with its actual diet, and verify whether there is a relationship between the size and volume of its prey and the size of the toad and the width of its mouth. A total of 43 toads (95.55%) presented food items in the stomach. In general, R. marina feeds on the most abundant items in the environment with a niche amplitude of B=0.055. Hymenoptera was the most representative prey numerically. On the other hand, Diplopoda was the most representative prey in volume and frequency. Considering the food importance index (Ix), Diplopoda (Ix=0.47) was the most important part of the diet of R. marina. The relationships between the biometric characteristics of R. marina and its prey are significant with a low coefficient of determination. This result demonstrates that larger individuals predate smaller and lower volume prey, such as ants, and on large prey such as Diplopoda. In general, the diet of R. marina is specialized and is composed of arthropods that occur in greater abundance in nature, but mainly of Diplopoda and Hymenoptera, without selectivity regarding the size of the prey.","PeriodicalId":56053,"journal":{"name":"Current Herpetology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48953322","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}

引用次数: 0

Habitat Assemblage of Amphibians from Langkawi Archipelago, Kedah, Peninsular Malaysia 马来西亚半岛吉打州兰卡威群岛两栖动物栖息地组合

IF 0.7 4区生物学

Current Herpetology Pub Date : 2023-08-25 DOI: 10.5358/hsj.42.171

D. Ong, S. Shahrudin

引用次数: 0

Intrapopulation and Interpopulation Geographic Variation in the Marsh Frog (Pelophylax ridibundus sensu lato) of Iran Based on Cytogenetic and Morphometric Data 基于细胞遗传学和形态计量学数据的伊朗沼泽蛙种群内和种群间地理变异

IF 0.7 4区生物学

Current Herpetology Pub Date : 2023-08-25 DOI: 10.5358/hsj.42.219

Fatemeh Fakharzadeh, Forough Seydi Avandi, Yaser Mombeni

{"title":"Intrapopulation and Interpopulation Geographic Variation in the Marsh Frog (Pelophylax ridibundus sensu lato) of Iran Based on Cytogenetic and Morphometric Data","authors":"Fatemeh Fakharzadeh, Forough Seydi Avandi, Yaser Mombeni","doi":"10.5358/hsj.42.219","DOIUrl":"https://doi.org/10.5358/hsj.42.219","url":null,"abstract":"Abstract: The genus Pelophylax has the most controversial taxonomy of any group of western Palearctic frogs. The taxonomic status of the Pelophylax ridibundus sensu lato from Iran is unclear and many populations of this marsh frog have not been examined. Here, we investigate cytogenetic and morphological variation in populations of this species from western and southwestern Iran. The morphometric results revealed that the frogs from these two areas can be largely distinguished in discriminate function analyses. All frogs are diploid and have 2N=26 chromosomes with five large pairs and eight small pairs of chromosomes. These chromosomes are metacentric, submetacentric and subtelocentric. All frogs have three or four pairs of subtelocentric chromosomes. The 6th and 13th pairs of chromosomes are subtelocentric in all western populations, but the position of the third subtelocentric chromosome pair varies. In south-western populations (Bushehr and Deylam regions) the 8th, 9th, and 13th >pairs of chromosomes are subtelocentric, but frogs from Bushehr have one more pair of subtelocentric chromosomes (11th). The second pair of large chromosomes in western populations is submetacentric, but in southwestern populations, the second pair of large chromosomes is metacentric. These differences in the type of chromosomes of P. ridibundus, especially in the presence, absence and number of subtelocentric chomosomes, suggest that the taxonomy of Pelophylax in Iran requires further investigation.","PeriodicalId":56053,"journal":{"name":"Current Herpetology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43962423","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}

引用次数: 0