State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China;
University of Chinese Academy of Sciences Beijing 100049 China;
Institute of Biology Mongolian Academy of Sciences Ulaanbaatar 13330 Mongolia;
State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China;
State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China;
Hulun Lake National Nature Reserve Administration Inner Mon- golia 021008 China;
Wildlife Sciences and Conservation Center of Mongolia Union Building B-701 UNESCO Str. Ulaanbaatar 14210 Mongolia;
Wildlife Sciences and Conservation Center of Mongolia Union Building B-701 UNESCO Str. Ulaanbaatar 14210 Mongolia;
Wildlife Sciences and Conservation Center of Mongolia Union Building B-701 UNESCO Str. Ulaanbaatar 14210 Mongolia;
State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China;
University of Chinese Academy of Sciences Beijing 100049 China;
Depart- ment of Ecoscience Aarhus University Aarhus Denmark;