1. Dept of Nature Conservation and Landscape Ecology Faculty of Environment and Natural Resources, Univ. of Freiburg Freiburg Germany
2. Univ. Lüneburg, Inst. of Ecology Lüneburg Germany
3. German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
4. UFZ‐Helmholtz Centre for Environmental Research, Dept of Soil Ecology Halle (Saale) Germany
5. Chinese Academy of Sciences, Inst. of Botany Beijing China
6. Univ. of Leipzig, Dept of Special Botany and Functional Biodiversity Leipzig Germany
7. Univ. of Tübingen, Dept of Geosciences, Chair of Soil Science and Geomorphology Tübingen Germany
8. Martin Luther Univ. Halle‐Wittenberg, Inst. of Biology/Geobotany and Botanical Garden Halle Germany