1 Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong 637002, China. [email protected].
2 Wildlife Conservation Research Unit, The Recanati-Kaplan Centre, Department of Zoology, University of OxfordOX13 5QL, Oxford, UK.
3 Wildlife Conservation Research Unit, The Recanati-Kaplan Centre, Department of Zoology, University of OxfordOX13 5QL, Oxford, UK. State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.