1. Redpath Museum, McGill University, Montreal, QC H3A 0C4, Canada.
2. Institute of Ocean Sciences, Fisheries and Oceans Canada, 9860 West Saanich Road, Sidney, BC V8L 4B2, Canada.
3. Cambridge University, Department of Zoology, Pembroke Street, Cambridge, CB2 3QZ, UK.
4. BioRISC, St. Catharine’s College, Cambridge CB2 1RL, UK.
5. Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, Gower Street, London, WC1E 6BT, UK.
6. Institute of Zoology, Zoological Society of London, Regent’s Park, London, NW1 4RY, UK.
7. Maritime Studies Program, Williams College-Mystic Seaport, 75 Greenmanville, Mystic, CT 06355, USA.
8. Department of Geography, King’s College London, 30 Aldwych, London, WC2B 4BG, UK.
9. Institute for Global Food Security, School of Biological Sciences, Queen’s University Belfast, Chlorine Gardens, Belfast, BT9 5DL, UK.
10. Bio-Protection Research Centre, Lincoln University, P.O. Box 85840, Lincoln 7647, Canterbury, New Zealand.
11. Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany.
12. Institute of Biology, Freie Universität Berlin, Königin-Luise-Str. 1-3, 14195, Berlin, Germany.
13. Berlin-Brandenburg Institute of Advanced Biodiversity Research, Königin-Luise-Str. 2-4, 14195 Berlin, Germany.
14. US Forest Service Northern Research Station, 180 Canfield St., Morgantown, WV, USA.
15. Czech University of Life Sciences Prague, Faculty of Forestry and Wood Sciences, Praha 6 - Suchdol, CZ 165 21, Czech Republic.
16. Department of Ecology, Evolution and Natural Resources, Rutgers University, 14 College Farm Road, New Brunswick, NJ 08901, USA.
17. Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4, Canada.
18. Natural Resources Science, University of Rhode Island, 9 East Alumni Avenue, Woodward Hall 133, Kingston, RI 02881, USA.
19. Institute of Botany, Czech Academy of Sciences, CZ-252 43, Průhonice, Czech Republic.
20. Department of Ecology, Faculty of Science, Charles University, Viničná 7, CZ-12844 Prague 2, Czech Republic.
21. Centre for Invasion Biology, Department of Botany and Zoology, Stellenbosch University, Matieland7602, South Africa.
22. Smithsonian Environmental Research Center, Edgewater, MD 21037, USA.
23. University of Tennessee, Department of Ecology and Evolutionary Biology, Knoxville, TN 37996, USA.
24. Estación Biológica de Doñana (EBD-CSIC), Avda. Américo Vespucio 26, Isla de la Cartuja, 41092 Isla de la Cartuja, Spain.
25. Asian School of the Environment, Nanyang Technological University, 50 Nanyang Avenue, Singapore.