1. Institute of Botany; Department of Invasive Ecology; The Czech Academy of Sciences; CZ-252 43 Průhonice Czech Republic
2. Department of Biosciences; Aarhus University; 8000 Aarhus C Denmark
3. Ecology, Department of Biology; University of Konstanz; Universitätsstrasse 10 D-78464 Konstanz Germany
4. Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation; Taizhou University; Taizhou 318000 China
5. German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig; Deutscher Platz 5e D-04103 Leipzig Germany
6. Biodiversity, Macroecology & Biogeography; University of Goettingen; Büsgenweg 1 D-37077 Göttingen Germany
7. Agroecosystems Ecology and Conservation group; Department of Agricultural and Environmental Sciences (DiSAA); University of Milan; G. Celoria 2 IT-20133 Milan Italy
8. Division of Conservation Biology, Vegetation and Landscape Ecology; University Vienna; 1030 Wien Austria
9. Centre of Biodiversity and Sustainable Land Use (CBL); University of Goettingen; Büsgenweg 1 D-37077 Göttingen Germany
10. Department of Biosciences; Durham University; South Road Durham DH1 3LE United Kingdom
11. Department of Ecology; Faculty of Science; Charles University; CZ-128 44 Viničná 7 Prague 2 Czech Republic