1. North Florida Research and Education Center University of Florida Quincy FL USA
2. Erguna Forest‐Steppe Ecotone Research Station Institute of Applied Ecology Chinese Academy of Sciences Shenyang China
3. Key Laboratory of Vegetation Ecology Ministry of Education Northeast Normal University Changchun China
4. North Florida Research and Education Center University of Florida Marianna FL USA
5. Institute of Botany Chinese Academy of Sciences Beijing China