1. Plant Evolutionary Ecology; Institute of Evolution & Ecology; University of Tübingen; Auf der Morgenstelle 5 72076 Tübingen Germany
2. Department of Community Ecology (BZF); Helmholtz Centre for Environmental Research - UFZ; Theodor-Lieser-Str. 4 06120 Halle Germany
3. Restoration Ecology; Department of Ecology & Ecosystem Management; Technical University Munich; Emil-Ramann-Str. 6 85354 Freising Germany
4. Biodiversity and Ecosystem Research Group; Institute of Landscape Ecology; University of Münster; Heisenbergstr. 2 48149 Münster Germany
5. German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig; Deutscher Platz 5e 04103 Leipzig Germany