1. Division of Conservation Biology, Vegetation and Landscape Ecology at the University of Vienna, in Austria; the Department of Biodiversity and Nature Conservation at Environment Agency Austria, in Vienna; and the Centre for Invasion Biology in the Department of Botany and Zoology at Stellenbosch University, in South Africa
2. Department of Biology at the University of Fribourg, in Switzerland
3. Institute for Environmental Protection and Research (ISPRA) and is the chair of the International Union for Conservation of Nature Species Survival Commission Invasive Species Specialist Group, in Rome, Italy
4. Bio-Protection Research Centre at Lincoln University, in Christchurch, New Zealand
5. Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB); Freie Universität Berlin; and the Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), in Berlin, Germany
6. Department of Marine Sciences at the University of the Aegean, in Mytilene, Greece
7. Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB) and is chair of ecosystem science/plant ecology at Technische Universität Berlin, in Germany
8. Helmholtz Centre for Environmental Research–UFZ in the Department of Community Ecology, in Halle, Germany; the Geobotany and Botanical Garden at Martin Luther University Halle-Wittenberg, in Halle, Germany; and the German Centre for Integrative Biodiversity Research (iDiv), in Leipzig, Germany
9. Institute of Botany and the Department of Invasion Ecology at The Czech Academy of Sciences, in Průhonice, Czech Republic, and with the Department of Ecology at Charles University, in Prague, Czech Republic
10. Department of Biodiversity and Nature Conservation at Environment Agency Austria, in Vienna
11. Department of Biology at the University of Konstanz, in Germany, and with the Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation at Taizhou University, in China
12. Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas (EBD-CSIC), in Sevilla, Spain
13. Centre for Invasion Biology in the Department of Botany and Zoology at Stellenbosch University, in South Africa
14. South African National Biodiversity Institute at the Kirstenbosch Research Centre, Cape Town, South Africa