1. Center for Systems Integration and Sustainability, Department of Fisheries and Wildlife, Michigan State University, Michigan, 48823 USA
2. Department of Counseling, Educational Psychology and Special Education, Department of Fisheries and Wildlife, Michigan State University, Michigan, 48823 USA
3. China Conservation and Research Center for the Giant Panda, Dujiangyan, Sichuan, 611843 China
4. Department of Fisheries and Wildlife, Michigan State University, Michigan, 48823 USA
5. Institute of Ecology, China West Normal University, Sichuan, 637001 China
6. Toxicology Center, University of Saskatchewan, Saskatchewan, S7N 5B3 Canada
7. Department of Wildlife Ecology and Conservation, University of Florida, Florida, 32611 USA