1. Center for Integrative Conservation; Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Menglun 666303 Yunnan China
2. Global Change Biology Group; Department of Botany and Zoology; Stellenbosch University; P/Bag X1 Matieland 7602 South Africa
3. Department of Biological Sciences; University of Cape Town; Rondebosch 7701 Cape Town South Africa
4. South African Environmental Observation Network; National Research Foundation; Private Bag X7 Claremont 7735 South Africa