1. State Key Laboratory of Urban and Regional Ecology, Research Center for Eco‐Environmental Sciences Chinese Academy of Sciences Beijing 100085 China
2. University of Chinese Academy of Sciences Beijing 100049 China
3. State Key Laboratory of Vegetation and Environmental Change Institute of Botany, Chinese Academy of Sciences Beijing 100093 China
4. Institute of Biology, Freie Universität Berlin Berlin 14195 Germany
5. Berlin‐Brandenburg Institute of Advanced Biodiversity Research (BBIB) Berlin 14195 Germany