About the Authors
Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, China
The Graduate School of the Chinese Academy of Sciences, Beijing, China
The authors have declared that no competing interests exist.
Conceived and designed the experiments: GL DY. Performed the experiments: GL HH. Analyzed the data: GL. Contributed reagents/materials/analysis tools: GL. Wrote the paper: GL.