青海三江源自然保护区鸟类分布状况初步研究

20 0 1年 7月 13日至 8月 14日对三江源自然保护区鸟类进行了调查 ,共记录到鸟类 2 37种、2 7亚种 ,计 2 6 4种 (亚种 ) ,隶属 16目 41科 .新记录种 13种 .所有鸟类中 ,古北种 179种 (75 .5 3%) ,东洋种 13种 (5 .49%) ,广布种 45种 (18.99%) .从居留类型 (含亚种 )来看 :留鸟 12 0种 ,夏候鸟 75种 ,冬候鸟 4种 ,旅鸟 5 0种 ,繁殖鸟 (分布在本区 ,存在垂直迁徙等现象者 ) 15种 ;国家重点保护鸟类 7科 40种 .从组成上看 ,保护区鸟类组成以古北界成分最多 ,占有绝对优势 ,其次为广布种 ,东洋界种类较少 .

Investigation of avifauna distribution in the Water Origin of Three Rivers Nature Reserve

An avian background survey was conducted in the Water Origin of Three Rivers Nature Reserve from July 13 to August 14 in 2001. Two hundreds and sixty four species (subspecies), belonging to 16 families and 41 orders,were recorded. Thirteen species of them are new records. Among them, 179 species (75.53%)are the Palaoarctic Region, 13 species (5.49%)of the Oriental Region, and 45 species (18.99%)are Cosmopolitan.In all kinds of bird, residents 120, 75 species are summer visitors, 4 species are winter visitors, and 50 species are migrants. Fourty species of bird,belonging to 7 orders, are under the national protection by law.In this nature reserve,the diversity of birds of the Palaoarctic Region is the highest while that of the Oriental Region is the lowest.