安徽省黄山市歙县两栖爬行动物生物多样性分布格局研究

    Distribution Pattern of Amphibian and Reptile Biodiversity in Shexian County, Huangshan City, Anhui Province, China

    • 摘要: 目前, 在全球范围内, 两栖爬行动物种群的生存承受着多重压力, 其种群数量已出现明显的下降趋势, 因此开展两栖爬行动物生物多样性的调查与保护工作刻不容缓。2023年5、8和10月对安徽省歙县两栖爬行动物的生物多样性开展调查, 调查方法以样线法为主, 以围栏陷阱法为辅。本次调查将歙县县域划分为28个10 km×10 km的调查样区, 每个样区设置调查样线3~5条, 样线长均不少于200 m。调查期间共设置258条样线和32个围栏陷阱。本次调查共记录到2 221只两栖动物, 隶属于2目7科18属22种, 其中包括1个入侵种--美洲牛蛙(Lithobates catesbeiana); 调查还记录到532只爬行动物, 隶属于1目8科17属20种。多样性分析结果显示, 因不同物种繁殖期存在差异, 本次调查发现的两栖动物物种种类和数目多于爬行动物, 且泽陆蛙(Fejervarya multistriata)和蓝尾石龙子(Plestiodon elegans)分别为两栖和爬行动物的优势种; 歙县两栖爬行动物生物多样性高而物种均匀度低; 溪流型两栖动物及灌丛石隙型爬行动物多样性指数最高。本次调查结果表明, 歙县区域内两栖爬行动物具有重要的保护价值, 有助于全面了解安徽省歙县两栖爬行动物资源状况, 为其科学保护和管理提供基础资料。

       

      Abstract: The survival of amphibian and reptile populations is under multiple pressures globally, and their populations have shown a clear downward trend, so it is urgent to carry out surveys to conserve amphibian and reptile biodiversity. In order to comprehensively understand the current status of amphibian and reptile diversity in Shexian County, Anhui Province, a survey was carried out in May, August and October 2023 using line-transect, supplemented with fence traps. This survey divided Shexian County into 28 10 km by 10 km survey sample areas, and 3 to 5 line-transects were set up in each sample area, each with a length of not less than 200 m. A total of 258 line-transects and 32 fence traps were set up in this survey. A total of 2 221 amphibians were recorded, belonging to 2 orders, 7 families, 18 genera and 22 species, including one invasive species: the American bullfrog (Lithobates catesbeiana); 532 reptiles, belonging to 1 order, 8 families, 17 genera and 20 species. The analysis of their diversity shows that, due to the differences in the breeding periods of different species, more species and numbers of amphibian species than reptiles were found in this survey, and that the zelkova frog (Fejervarya multistriata) and the blue-tailed skink (Plestiodon elegans) were the dominant species of amphibians and reptiles, respectively. The diversity of amphibians and reptiles is high and the homogeneity is low. Stream-type amphibians and shrub rock-gap reptiles have the highest diversity indices. This survey shows that the amphibians and reptiles in Shexian County have important conservation value, which can help to comprehensively understand the herpetofaunal resources in Shexian County, Anhui Province, and provide basic information for their scientific protection and management.

       

    /

    返回文章
    返回