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Distribution and Population State of Black-necked Crane Grus nigricollis in Lop Nur and Kunlun Mts.,Southern Xinjiang

MA Ming① LI Wei-Dong② ZHANG Hui-Bin③ ZHANG Xiang③ YUAN Guo-Ying② CHEN Ying① YUAN Lei④ DING Peng① ZHANG Yu④ CHENG Yun④ SAGEN Gu-Li④ ① Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011; ② Xinjiang Academy of Environmental Protection,Urumqi 830011; ③ Altun Mountain National Nature Reserve Administration,Korla 841000; ④ Management Bureau of Xinjiang Lop Nur Wild Camel National Nature Reservation,Urumqi 830011,China  
The Black-necked Crane(Grus nigricollis),local name is Tu-er-na,mainly distributes on the border of Tibet and Qinghai,which belongs to Altun and Kunlun Mountains,and hardly recorded in Xinjiang Uygur Autonomous Region.The authors have observed Black-necked Crane in Ruoqiang County(Qimantag,E Kunlun Mts.,and Altun Mts.),Qarqan County(Tula Wetlands,Qarqan River),Hotan County(Aksayqin Lake),Moyu County,Pishan County(Karakax River),Yecheng County(Yarkant River) in 1985 to 2010.By direct counting and the questionnaire survey,we estimated the population size 180-220 individuals in Xinjiang.In the Altun Mts.Nature Reserve,137 cranes,the largest population were recorded in the autumn migration season,2003.The most recently record of Black-necked Crane was in the Lop Nur(N 40°19′,E 91°58′,alt.790 m) on May 18th,2010.The Lop Nur would be the northernmost distribution location with lowest latitude and extreme arid environment.This record has extended the distribution region of this typical Qinghai-Tibetan Plateau species northwards at 2°-3° latitudes.Whether the Black-necked Crane has historically distributed in the Lop Nur is unknown.The authors doubt the truth of the records on Black-necked Crane in several locations,Xinjiang in 1980s and 1990s.
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