{"title":"日本千叶县平原和山区日本塘龟生长的地理变异","authors":"Shawichi Kagayama","doi":"10.5358/hsj.39.87","DOIUrl":null,"url":null,"abstract":"Abstract: Understanding growth of the Japanese pond turtle Mauremys japonica in relation to their habitats is crucial in the strategic planning of conservation measures for the species. However, the pertinent baseline data are inadequate. Hence, I sought to investigate geographic variation in the growth rates of M. japonica in the flatland and foothill regions of Chiba Prefecture, Japan. Turtles were captured and recaptured in both regions from 2014 to 2018, and their growth patterns were analyzed using the von Bertalanffy growth curve. The results show that female turtles in the flatlands grew more rapidly than did those in the foothill site. Male turtles showed the same results, but the overall body size of those in the flatlands was larger than those in the mountains. These findings indicate that the flatland region is an essential habitat for the turtles, and that this study may contribute to the conservation of the species, which is already at risk of local extirpation due to multiple anthropogenic threats in the area.","PeriodicalId":56053,"journal":{"name":"Current Herpetology","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2020-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Geographic Variation in the Growth of Japanese Pond Turtles, Mauremys japonica, in the Flatland and Mountain Regions of Chiba Prefecture, Japan\",\"authors\":\"Shawichi Kagayama\",\"doi\":\"10.5358/hsj.39.87\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract: Understanding growth of the Japanese pond turtle Mauremys japonica in relation to their habitats is crucial in the strategic planning of conservation measures for the species. However, the pertinent baseline data are inadequate. Hence, I sought to investigate geographic variation in the growth rates of M. japonica in the flatland and foothill regions of Chiba Prefecture, Japan. Turtles were captured and recaptured in both regions from 2014 to 2018, and their growth patterns were analyzed using the von Bertalanffy growth curve. The results show that female turtles in the flatlands grew more rapidly than did those in the foothill site. Male turtles showed the same results, but the overall body size of those in the flatlands was larger than those in the mountains. These findings indicate that the flatland region is an essential habitat for the turtles, and that this study may contribute to the conservation of the species, which is already at risk of local extirpation due to multiple anthropogenic threats in the area.\",\"PeriodicalId\":56053,\"journal\":{\"name\":\"Current Herpetology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2020-08-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Current Herpetology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.5358/hsj.39.87\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ZOOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Herpetology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.5358/hsj.39.87","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ZOOLOGY","Score":null,"Total":0}
Geographic Variation in the Growth of Japanese Pond Turtles, Mauremys japonica, in the Flatland and Mountain Regions of Chiba Prefecture, Japan
Abstract: Understanding growth of the Japanese pond turtle Mauremys japonica in relation to their habitats is crucial in the strategic planning of conservation measures for the species. However, the pertinent baseline data are inadequate. Hence, I sought to investigate geographic variation in the growth rates of M. japonica in the flatland and foothill regions of Chiba Prefecture, Japan. Turtles were captured and recaptured in both regions from 2014 to 2018, and their growth patterns were analyzed using the von Bertalanffy growth curve. The results show that female turtles in the flatlands grew more rapidly than did those in the foothill site. Male turtles showed the same results, but the overall body size of those in the flatlands was larger than those in the mountains. These findings indicate that the flatland region is an essential habitat for the turtles, and that this study may contribute to the conservation of the species, which is already at risk of local extirpation due to multiple anthropogenic threats in the area.
Current HerpetologyAgricultural and Biological Sciences-Animal Science and Zoology
CiteScore
1.20
自引率
14.30%
发文量
20
期刊介绍:
Current Herpetology publishes original research articles on amphibians and reptiles. It is the official journal of the Herpetological Society of Japan and is a continuation of Acta Herpetologica Japonica (1964–1971) and Japanese Journal of Herpetology (1972-1999).