沱湖自然保护区鸟类群落结构及其多样性指数分析

2008年4月～2009年5月,采用样线法对沱湖自然保护区的鸟类物种多样性进行了调查,共记录有鸟类13目33科69种,其中国家Ⅰ类保护鸟类2种、国家Ⅱ类保护鸟类6种、安徽省地方重点保护鸟类31种.69种鸟类中古北界鸟类42种(62.0％),东洋界鸟类6种(8.5％).69种鸟类中留鸟有12种,占鸟类总数的16.9％;侯...

Community structure and biodiversity of birds in Tuohu Nature Reserve, Anhui Province

During April 2008 to May 2009, a sysmetic bird community survey was conducted in Tuohu Nature Reserve, Anhui Province, China. A total of 69 species belonging to 13 orders 33 families were recorded, of which 42 species belong to Palaeartic birds (62.0%), and 6 species to Oriental (8.5%). The species of Paleartic are dominant, and in terms of migration 12 species (16.9%) are residents, while 57 species (83.1%) are migratory birds，of which 2 species are in the national grade-one protection list, 6 species in the national grade-two protection list ,and 31 species in Anhui provincial protection list. The bird species diversity shows clear seasonal variation. The management of the protection of the birds, as well as local resources, is also discussed in this paper. Bird diversity index varies with seasons and the living environment. The data shows that diversity index of the habitat of mire is the maximum (1.368 1), and next to it is the habitat of forest (1.258 6), farmland (0.805 9) and water body (0.739 0). However, the habitat of residential area is the minimum (0.642 0). The evenness index of water habitat (0.380 0) is the maximum, and next to it is that of the mire (0.376 1), forest (0.360 0) and farmland (0.314 2). After all, the index of residential area is the minimum (0.267 7). In Huaihe River Basin, Tuohu Lake survives the winter and thus serves as an important route in the migration for the multitudinous waterfowls on the way, and the function of this basin wetland waterfowl protection. The results indicate that the water birds are facing the threats from the environmental degradation and human activity in the area.