1. Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, Montana, USA
2. Department of Planning, Industry and Environment, Queanbeyan, NSW, Australia
3. Institute of Integrative Biology, ETH Zurich, Zürich, Switzerland
4. School of Life Sciences, University of Hawaii at Manoa, Honolulu, Hawaii, USA
5. Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria
6. Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany
7. German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leizpig, Germany
8. Department of Environmental Systems Science, ETH Zurich, Institute of Integrative Biology, Zurich, Switzerland
9. UR “Ecologie et Dynamique des Systèmes Anthropisés” (EDYSAN, UMR 7058 CNRS), Université de Picardie Jules Verne, Amiens, France
10. Research Institute for Nature and Forest–INBO, Brussels, Belgium
11. Grupo de Ecología de Invasiones, INIBIOMA, CONICET, Universidad Nacional del Comahue, Bariloche, Argentina
12. Laboratorio de Invasiones Biológicas (LIB), Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
13. Institute of Ecology and Biodiversity (IEB), Santiago, Chile
14. Department of Biodiversity & Nature Conservation, Environment Agency Austria, Vienna, Austria