Current Herpetology最新文献_第5页

Seasonal Changes in Breeding Characters of Two Syntopic Onychodactylus Salamanders with Special Reference to Differentiation in Their Breeding Seasons 两种同生蝾螈繁殖特性的季节变化及其繁殖季节分化

IF 0.7 4区生物学

Current Herpetology Pub Date : 2022-08-26 DOI: 10.5358/hsj.41.196

Junichiro Naito, Chiaki Kambayashi, Renshiro Namba, Natsuhiko Yoshikawa, N. Shimizu

{"title":"Seasonal Changes in Breeding Characters of Two Syntopic Onychodactylus Salamanders with Special Reference to Differentiation in Their Breeding Seasons","authors":"Junichiro Naito, Chiaki Kambayashi, Renshiro Namba, Natsuhiko Yoshikawa, N. Shimizu","doi":"10.5358/hsj.41.196","DOIUrl":"https://doi.org/10.5358/hsj.41.196","url":null,"abstract":"Abstract: Hynobiid salamanders of the genus Onychodactylus are known to possess palmar and tarsal black tubercles or asperities during the breeding season, which were once considered male-specific characters used for spawning activity. However, such tubercles and asperities have also been observed in females and are not always developed in breeding individuals; thus, their functions remain unclear. In this study, we investigated the developmental process of the tubercles and asperities in two Onychodactylus species in the Chugoku Mountains. We found that these traits appear rapidly immediately before the start of spawning. Tubercles and asperities were also observed in females, in which they showed a similar temporal developmental pattern to that observed in males; thus, they may be adaptive traits for migration to underground spawning sites or for breeding activity at these sites. In the Chugoku Mountains, O. kinneburi and O. japonicus are known to share breeding sites for spawning, but their reproductive isolation mechanism remains unknown. In the course of our survey, we found a temporal gap in breeding season between the two species, which may be involved in premating reproductive isolation.","PeriodicalId":56053,"journal":{"name":"Current Herpetology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48650946","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

Selectivity of Perch Diameter by Green Anole (Anolis carolinensis) for Trapping in Ogasawara 小笠原绿按蚊捕集栖鱼直径的选择性研究

IF 0.7 4区生物学

Current Herpetology Pub Date : 2022-08-26 DOI: 10.5358/hsj.41.172

N. Mitani

引用次数: 0

A New Salamander of the Genus Onychodactylus from Central Honshu, Japan (Amphibia, Caudata, Hynobiidae) 日本本州岛中部Onychodactylus属一新蝾螈（两栖纲，尾目，蝾螈科）

IF 0.7 4区生物学

Current Herpetology Pub Date : 2022-02-24 DOI: 10.5358/hsj.41.82

Natsuhiko Yoshikawa, M. Matsui

{"title":"A New Salamander of the Genus Onychodactylus from Central Honshu, Japan (Amphibia, Caudata, Hynobiidae)","authors":"Natsuhiko Yoshikawa, M. Matsui","doi":"10.5358/hsj.41.82","DOIUrl":"https://doi.org/10.5358/hsj.41.82","url":null,"abstract":"Abstract: The number of species of salamanders of the genus Onychodactylus in Japan has increased from one to six nominal species over the past decade, by taxonomic studies based not only on morphological but also molecular phylogenetic data. However, the presence of an additional cryptic species has been suggested by a series of previous studies. Here, we describe a new species, Onychodactylus pyrrhonotus sp. nov., from the Kinki, Chubu and Hokuriku Districts of central Honshu, Japan, based on morphological and genetic evidence. It belongs to the O. japonicus species complex and is the sister species of O. kinneburi from Shikoku Island and westernmost part of Honshu with 5.5% sequence divergence in the mitochondrial cytochrome b gene. The range of the new species completely overlaps with that of O. japonicus sensu stricto, and they are syntopic in at least six known localities. As shown in a previous study, reproductive isolation between these sympatric species is substantial. The new species is morphologically most easily distinguished from congeners by coloration, a sharply defined scarlet to pinkish dorsal stripe or mottling on a black background and dusty white dots on the venter.","PeriodicalId":56053,"journal":{"name":"Current Herpetology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44472411","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: 3

Phylogenetic Origins of a Newly Found Japanese Red-Bellied Newt Population in Yokohama City and Other Populations in Kanagawa Prefecture 横滨市新发现的日本红腹蝾螈种群和神奈川县其他种群的系统发育起源

IF 0.7 4区生物学

Current Herpetology Pub Date : 2022-02-24 DOI: 10.5358/hsj.41.132

Masaru Senzaki, S. Sano, Atsushi Takemoto, I. Miura, M. Ogata

引用次数: 0

Two Genetically Distinct yet Morphologically Indistinct Bungarus Species (Squamata, Elapidae) in Hong Kong 香港两种遗传上独特但形态上不明确的银环蛇

IF 0.7 4区生物学

Current Herpetology Pub Date : 2022-02-24 DOI: 10.5358/hsj.41.114

Felix Landry Yuan, Tracey-Leigh Prigge, Yik‐Hei Sung, C. Dingle, T. Bonebrake

引用次数: 1

Development of Eight Microsatellite Markers for the Tsushima Salamander, Hynobius tsuensis, and its Close Relatives (Amphibia: Caudata) with Preliminary Analysis of Genetic Differentiation 对马蝾螈及其近缘两栖目(尾纲)8个微卫星标记的开发及其遗传分化的初步分析

IF 0.7 4区生物学

Current Herpetology Pub Date : 2022-02-24 DOI: 10.5358/hsj.41.125

Keita Niwa, Natsuhiko Yoshikawa, K. Nishikawa, M. Matsui

引用次数: 1

Developmental Stages of Lotic-breeding Toad, Bufo torrenticola, with a Comparison to Lentic-breeding B. japonicus formosus (Amphibia: Anura: Bufonidae) 乳液养殖蟾蜍的发育阶段——与Lentic养殖日本蟾蜍的比较（两栖纲：无尾蟾蜍：蟾蜍科）

IF 0.7 4区生物学

Current Herpetology Pub Date : 2022-02-24 DOI: 10.5358/hsj.41.8

Kazuhiro Tanaka, K. Nishikawa

引用次数: 2

Life History Stage and Sex-specific Survival Rates for the Japanese Pond Turtle, Mauremys japonica, in the Foothill Region of Chiba Prefecture, Japan 日本千叶县山麓地区日本池龟的生活史阶段和性别特异性存活率

IF 0.7 4区生物学

Current Herpetology Pub Date : 2022-02-24 DOI: 10.5358/hsj.41.138

Shawichi Kagayama

引用次数: 0

Sexual Dimorphism and Geographic Variation of the White-lipped Pit Viper (Trimeresurus albolabris) in China 中国白唇斑蝰（Trimereurus albolabris）的两性异形及地理变异

IF 0.7 4区生物学

Current Herpetology Pub Date : 2022-02-24 DOI: 10.5358/hsj.41.24

Fei Zhu, Ling-Chu Chen, P. Guo, Yu Xu, Qin Liu

引用次数: 2

Rock Installation Reduces Aggressive Behavior in Captive Hawksbill Turtles 岩石装置减少圈养玳瑁龟的攻击行为

IF 0.7 4区生物学

Current Herpetology Pub Date : 2022-02-24 DOI: 10.5358/hsj.41.1

Isao Kawazu, Miwa Suzuki, Konomi Maeda

{"title":"Rock Installation Reduces Aggressive Behavior in Captive Hawksbill Turtles","authors":"Isao Kawazu, Miwa Suzuki, Konomi Maeda","doi":"10.5358/hsj.41.1","DOIUrl":"https://doi.org/10.5358/hsj.41.1","url":null,"abstract":"Abstract: Captive breeding programs are utilized worldwide for the recovery and conservation of endangered species, including the critically-endangered hawksbill turtle (Eretmochelys imbricata). However, aggression is an issue that is commonly reported among captive hawksbill turtles housed together. In the present study, we installed rocks in a captive environment to assess whether they can suppress aggressive behavior in captive hawksbill turtles. The behavior of immature female hawksbill turtles (n=6) was recorded over a 10 d period (between 0900 and 1700 h daily) in an experimental tank under the following conditions: (1) housed alone or paired with another individual in the (2) presence and (3) absence of rocks. Resting behavior was recorded as the total amount of time spent resting per day, while hiding and biting behaviors (i.e., aggressive behavior) were recorded as the total number of events observed per day. Serum corticosterone concentrations were measured at 0900 and 1700 h daily throughout the experimental period. The median number of hiding and biting events was significantly lower for paired individuals housed in the presence of rocks than that for those housed in the absence of rocks. Although no significant differences in serum corticosterone concentrations were observed among the experimental groups, paired individuals spent significantly more time resting in the presence of rocks. Our results suggest that underwater rock installations effectively reduce aggression in captive hawksbill turtles.","PeriodicalId":56053,"journal":{"name":"Current Herpetology","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41454724","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: 1