湖北通城繁殖季节鸟类多样性年际动态及生境差异

Bird community Diversity During Breeding season and Its Interannual Dynamics in Different Habitats in Tongcheng county, Hubei province

摘要:

本研究于 2016~2019每年 4~7月对位于湖北省东部最南缘的通城县鸟类群落采用样线法进行调查,共记录到 鸟类 105种,隶属于 13 目 40科,其中雀形目种类最多 。记录到国家 II级重点保护鸟类 15种 。 区系组成以东洋界鸟类为 主,居留型组成以留鸟为主 。 当地 2016~2019年不同年份间的繁殖季鸟类群落组成基本稳定,群落多样性在年度间小幅 度变化 。 乡村生境的鸟类物种数、密度、多样性指数均高于乔木林、竹林和内陆水体生境,说明具有较高景观异质性的乡村 生境对通城繁殖季鸟类群落的贡献较大 。维持健康的乡村生态系统对维持整个区域的鸟类多样性,乃至整体的生物多样 性具有重要意义。

Abstract:

To explore the bird community diversity during breeding season in Tongcheng county, Hubei province , we carried out investigations using line transect method during April to July from 2016to 2019. Atotal of 105bird species be- longing to 13orders and 40families were recorded, among which most species (66. 7%) are from passeriformes . 55. 24% are oriental species , 64. 8% are resident birds and 15 species are listed as class II national—protected species in china . similarity index scores indicated the bird community composition during breeding season in Tongcheng county is relatively stable from 2016to 2019. Bird community diversity indexes exhibited little fluctuation among years . Number of species , density, and diversity index scores of bird community in village habitat are higher than those of the other habitats in Tongcheng county. The village habitat contributes greatly to the bird community diversity during breeding season in Tongcheng county because of its high landscape heterogeneity. The maintenance of a healthy ecosystem function in rural area is of great importance to the conservation of biological diversity in the whole area .