This project was funded primarily by the Everest Snow Leopard Conservation Center,a partnership initiative of Vanke Foundation and Qomolangma National Nature Reserve Administration.We are grateful for the support received from the Second National Survey of Terrestrial Wildlife,State Forestry Administration of China,and Forestry Bureau of Tibet Autonomous Region.The field work was supported by Zi-Cheng Yang and Xin-Jin Che from the Wildlife Institute of Beijing Forestry University.We thank the staff of Qomolangma National Nature Reserve,particularly Ciou,Ciwang,Daqiong,Yajun,Gesangzhuoma,and Suolun,for their assistance in fieldwork coordination.We also thank the local residents and officials for sharing their insights. （）