东洞庭湖冬季鸟类及其多样性分析

东洞庭湖冬季常见鸟类共30种，隶属11目17科20属，其中国家二级保护动物4种，湖南省级保护动物14种。该地的冬候鸟21种，留鸟9种。东洋界鸟类10种，古北界鸟类1种，广布性鸟类19种，东洞庭湖冬季鸟类的多样性指数为1．5171，均匀性指数为0．4460。

Investigation of Winter Birds and Diversity in the East Dongting Lake

In the Dongting lake, 30 species of winter birds were recorded, which belong to 11 orders, 17 families, 20 genera.Four of them are listed as national second-ranked protected birds and 14 are provincial protected birds. Twenty one species are winter migrant and 9 resident, 10 species are oriental birds, one is palearctic bird and 19 species are windespread. The birds' diversity index in the region was 1517*!1, evenness index was 0446*!0.