1. Institute for Landscape EcologyWestfälische Wilhelms‐Universität Münster Muenster Germany
2. Institute for Agricultural Sciences, Grassland SciencesETZ Zürich Zürich Switzerland
3. Institute of Plant SciencesUniversity of Bern Bern Switzerland
4. Swiss Federal Research Institute WSL Birmensdorf Switzerland
5. Institute of Biochemistry and BiologyUniversity of Potsdam Potsdam Germany
6. Institute for Ecology and EvolutionUniversity of Salzburg Salzburg Austria
7. Department of Plant PhysiologyEstonian University of Life Sciences Tartu Estonia
8. Global Ecology Unit CREAF‐CSICUniversidad Autónoma de Barcelona Barcelona Spain
9. CREAF Cerdanyola del Vallès Spain