江苏连云港两栖动物多样性及时空格局

doi:10.19741/j.issn.1673-4831.2020.0042

摘要/Abstract

摘要： 物种资源调查和观测是我国两栖动物保护工作的前期基础，对生物多样性保护具有重要意义。过去的20 a里，江苏省出现了快速城市化现象，导致栖息地丧失、栖息地破碎化/隔离以及栖息地退化，进而严重威胁两栖动物的生存与分布。为了解连云港两栖动物多样性现状及时空分布特点，于2018年4、6、8月采用样线法进行调查，共记录到两栖动物5种，隶属于1目3科4属，分别为中华蟾蜍（Bufo gargarizans）、黑斑侧褶蛙（Pelophylax nigromaculatus）、金线侧褶蛙（Pelophylax plancyi）、镇海林蛙（Rana zhenhaiensis）和泽陆蛙（Fejervarya multistriata），其中泽陆蛙种群数量最多，镇海林蛙遇见率最低。各调查月份之间两栖动物的物种多样性存在差异，6月物种多样性指数最高，其次为8月，4月最低。该研究基本掌握了连云港两栖动物的资源现状和分布格局，分析了该区域两栖动物面临的胁迫因素，并对两栖动物的保护提出了相关建议。

关键词: 连云港, 两栖动物, 资源调查, 生物多样性

Abstract: The survey of amphibian communities plays an important role in formulating conservation strategies of biodiversity. In the past 20 years, rapid urbanization has occurred in Jiangsu Province, especially in Lianyungang City. Urbanization affects amphibian communities through habitat loss, fragmentation, and degradation of habitat quality, which are the main threats to amphibian populations. In order to understand the spatial and temporal patterns of amphibian communities in Lianyungang City, 14 sampling transect were established and surveys were conducted to investigated the richness and density of anurans in April, June and August of 2018. Five amphibian species were detected in the study area, which belong to 4 genera, 3 families, 1 order. The five species are Asiatic Toad (Bufogargarizans), Black-spotted Pond Frog (Pelophylaxnigromaculatus), Beijing Gold-stripe Pond Frog (P. plancyi), Zhenhai Brown Frog (Rana zhenhaiensis) and Hong Kong Rice-paddy Frog (Fejervarya multistriata). The species of F. multistriata was the most frequently detected, whereas R. zhenhaiensis was rare detected in the survey. The species diversity of amphibians varied significantly at the survey season, with the highest diversity index in June, followed by August, and the lowest in April. Based on the amphibian species richness and distribution pattern, it could be concluded that anurans in Lianyungang are affected both by environmental change in microhabitats and in temporal variables. Some protective suggestions are proposed.

Key words: Lianyungang, amphibian, resource investigation, biodiversity

中图分类号:

X176

钱汝恩, 王浩, 何玉晓, 陈婉, 李鹏, 胡超超, 徐海根. 江苏连云港两栖动物多样性及时空格局[J]. 生态与农村环境学报, 2020, 36(6): 720-725.

QIAN Ru-en, WANG Hao, HE Yu-xiao, CHEN Wan, LI Peng, HU Chao-chao, XU Hai-gen. Temporal and Spatial Patterns of Amphibian Species Richness in Lianyungang, Jiangsu[J]. Journal of Ecology and Rural Environment, 2020, 36(6): 720-725.

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