文献类型：期刊文献

中文题名：Habitat suitability and influencing factors of a threatened highland flagship species,the Black-necked Crane(Grus nigricollis)

作者：Hongying Xu[1,2] Ru Jia[1] Hongrui Lv[3,4] Ge Sun[1] Dongping Liu[1] Hongyan Yu[5] Cunxin Ma[5] Tian Ma[1] Wenhong Deng[2] Guogang Zhang[1]

第一作者：Hongying Xu

机构：[1]Key Laboratory of Biodiversity Conservation of National Forestry and Grassland Administration,Ecology and Nature Conservation Institute,Chinese Academy of Forestry,Beijing,100091,China;[2]Key Laboratory for Biodiversity Science and Ecological Engineering,Ministry of Education,College of Life Sciences,Beijing Normal University,Beijing,100875,China;[3]Key Laboratory of Zoological Systematics and Evolution,Institute of Zoology,Chinese Academy of Sciences,Beijing,100101,China;[4]College of Life Sciences,University of Chinese Academy of Sciences,Beijing,100049,China;[5]Qilian Mountain National Park Qinghai Province Management Bureau,Qinghai,810400,China

年份：2025

卷号：16

期号：2

起止页码：138-148

中文期刊名：Avian Research

外文期刊名：鸟类学研究(英文版)

基金：supported by the National Natural Science Foundation of China(32070530);the National Key Research and Development Program of China(2019YFA0607103);the Qilian Mountain National Park Qinghai Province Management Bureau;the National Forestry and Grassland Administration of China。

语种：英文

中文关键词：Black-necked Crane;Flag species;Max Ent model;Population size;Potentially suitable habitat;Yarlung Zangbo River

分类号：Q958

摘要：Evaluating the habitat suitability of flagship species and its key influencing factors is vital for understanding potential conservation issues and developing coping strategies.We surveyed the wintering population size and distribution of the Black-necked Crane(Grus nigricollis)in the Yarlung Zangbo River Basin(YZRB)from 10 to 29 January 2022,and predicted the current potentially suitable habitat distribution and its effective factors using the Max Ent model.A total of 9337 wintering Black-necked Cranes were recorded in the YZRB in 2022,76.58%of which were primarily found in Lhunzub,Samzhubze,Namling,and Lhaze.Compared to 2018,the crane population has exhibited a notable decline in Samzhubze and Taktse,likely due to farmland plowing,winter irrigation,changes in agricultural practices,road construction and hydraulic projects.The crane population within various counties exhibited a significant positive correlation with the suitable habitat area(r=0.70,P=0.002,n=17).We also found that the currently suitable habitat area covered 17,204 km~2,of which only 3244 km~2(18.86%)was effectively protected at the national level,which was predominantly distributed in farmland and rangeland habitats characterized by gentle slopes,altitudes not exceeding 4500 m,and proximity to human settlements along rivers,where suitable isothermal values(51)and less seasonal precipitation(20 mm)prevail.Our study will be helpful for formulating reasonable conservation strategies to protect the core population of this threatened highland flagship species.