%0 Journal Article
%T Changes in Bird Resource at An''xi Extra-arid Desert National Nature Reserve<br>安西极旱荒漠国家级自然保护区鸟类资源的消长变化
%A HUANG Zu-hao
%A LIU Nai-f
%A CONG Pei-hao
%A SHI Hong-quan
%A <br>黄族豪
%A 刘迺发
%A 丛培昊
%A 史洪全
%J 自然资源学报
%D 2006
%I 
%X The An'xi Extra-arid Desert National Nature Reserve,situated in the west of the Hexi Corridor in Gansu Province,is a nature reserve for desert eco-system.Bird species and their abundances in the reserve were surveyed during 1988-1989.In order to gain an understanding of the changes of bird resource at the reserve since 1988,line-transect method was used to investi-gate bird species,amount and environmental condition during 2002-2004.A total of 103 species of birds were recorded in the reserve during this period.In comparison with the record of 1988-1989,31 were new(among which three species were new records for Gansu Province),but 36 disappeared.The state protected birds in China decreased from 18 species in 1988-1989 to 16 species in 2002-2004.Six additional protected species of birds were recorded,but eight species were not re-counted in the second survey.Fifteen birds listed in Convention on International Trade in Endangered Species of Wild Flora and Fauna(CITES)were recorded during 1988-1989 and 2002-2004,but the species changed.There were eight species that were listed in China Red Data Book of Endangered Animals:Aves in 1988-1989,however,six were in 2002-2004.Aegypius monachus and Phoenicurus alaschanicus were listed in Threatened Birds of Asia in 1988-1989,and Otis tetrax and Falco naumanni in 2002-2004.Comparing bird abundance between 2002-2004 and 1988-1989,the amount of birds in spring and summer decreased,but those in autumn increased.Specially,species and amount of dominant species significantly changed in each season between 1988-1989 and 2002-2004.The main factors that led to the change of bird resources in An'xi Extra-arid Desert National Nature Reserve were bird migration and human activities.
%K bird resource
%K natural reserve
%K An'xi
%K change<br>鸟类资源
%K 自然保护区
%K 安西
%K 变化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=4DCB9A3AF3395AF0101DE5302EF3C300&aid=E513B21BA33CA629&yid=37904DC365DD7266&vid=659D3B06EBF534A7&iid=38B194292C032A66&sid=FA3423FC1AE95C4E&eid=869B6F3117981EC4&journal_id=1000-3037&journal_name=自然资源学报&referenced_num=0&reference_num=11