四川嘛咪泽自然保护区不同生境类型鸟类多样性调查

2006年4~5月采用样点法对四川嘛咪泽自然保护区的鸟类组成和种群数量进行了调查,共记录到鸟类7目23科105种,数量1948只,其中国家重点保护鸟类6种,我国特有鸟类7种。鸟类区系以东洋界成分为主。对不同生境鸟类多样性的分析结果表明:1)人工林和灌丛草地生境间的鸟类群落相似性指数最高,灌丛草地和原始林之间鸟类群落相似性最低;2)次生林鸟类多样性指数最高,灌丛草地最低;3)原始林内国家级保护鸟类最多,特有种仅次于次生林;4)林中鸟类垂直分布中间层密度最大。

Bird Diversity in Different Habitats at Mamize Nature Reserve in Sichuan Province

The survey on the bird species and numbers was conducted with the method of the point count during April to May 2006 at the Mamize Nature Reserve of Sichuan Province. During the two months survey,1948 individuals of birds were recorded, belonging to 105 species, 23 families and 7 orders. There are 6 species of birds protected nationally, and 7 national endemic species at this Nature Reserve. The analysis about the bird fauna suggests that the East-Asian Group species is dominant. There are four bird communities distinguished according to the habitat. The analysis about the bird diversity of the different habitats suggests that 1)the highest similarity of the bird community is the replanted forest and the shrub meadow, and the lowest is the shrub meadow and the primary forest; 2)the highest bird diversity is the secondary forest, and the lowest is the shrub meadow; 3)the primary forest has the most species of birds protected nationally, and the national endemic species is fewer than the secondary forest; 4) the highest density of the birds in four bird communities is the understorey.