【摘要】 1996～ 1997年和 1999～ 2 0 0 0年 ,分别对三峡库区的鸟类进行了本底调查和物种监测 ,共纪录到鸟类35 4种 ,隶属 17目 5 1科 ,其中古北种 15 3种 (4 3 2 2 % ) ,东洋种 16 4种 (4 6 33% ) ,广布种 37种 (10 45 % ) ;夏候鸟87种 (2 4 5 8% ) ,冬候鸟 6 3种 (17 78% ) ,旅鸟 46种 (12 99% ) ,留鸟 15 8种 (4 4 6 3 % ) ;繁殖鸟类 (夏候鸟和留鸟 )2 45种 (6 9 2 1% ) ;国家重点保护鸟类 9科 42种。类群 (科种 )多样性分析显示 ,以中小型鸟类为主的雀形目鸟类对三峡库区鸟类多样性贡献最大 ,秭归具有最大的类群 (科 )多样性 ,而巴东则具有最多的物种数。研究表明 ,在一定时空条件下 ,地域景观的复杂性是决定鸟类种类和数量的关键因素。更多还原

【Abstract】 A background survey and a species observation on avian were conducted respectively in the Three Gorges Reservoir during 1996-1997,and 1999-2000.354 species,belonging to 17 orders and 51 families were recorded. Among them,153 (43 22%),164 (46 33%),and 37 (10 45%) species are the avian of Palaearctic region,Oriental region and Cosmopolitan respectively. There are 87 species (24 58%) of summer residents,63 species (17 78%) of winter residents,46 species (12 99%) of travelers and 158 species (44 63%) of residents. The birds of Passeriformes have more important contribution to the group diversity in the Three Gorges Reservoir. Zigui County has the maximal family diversity,while Badong County has the upmost species composition. The research indicated that habitat diversity was the main key factors to control bird species diversity in a certain time and space.更多还原