Affiliations

• ¹ Redpath Museum, McGill University, Montreal, QC, H3A 0C4, Canada. Electronic address: tony.ricciardi@mcgill.ca.
• ² Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, Gower Street, London WC1E 6BT, UK; Institute of Zoology, Zoological Society of London, Regent's Park, London NW1 4RY, UK.
• ³ Maritime Studies Program, Williams College-Mystic Seaport, 75 Greenmanville, Mystic, CT 06355, USA.
• ⁴ Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, MBC, 97 Lisburn Road, Belfast BT9 7BL, UK.
• ⁵ Bio-Protection Research Centre, Lincoln University, PO Box 85840, Lincoln 7647, Canterbury, New Zealand.
• ⁶ University of Victoria, Biology Department, 3800 Finnerty Road, Victoria, BC, V8P 5C2, Canada.
• ⁷ Leibniz Institute of Freshwater Ecology and Inland Fisheries, 12587 Berlin, Germany; Institute of Biology, Freie Universität Berlin, Königin-Luise-Strasse 1-3, 14195 Berlin, Germany; Berlin-Brandenburg Institute of Advanced Biodiversity Research, 14195 Berlin, Germany.
• ⁸ US Forest Service Northern Research Station, 180 Canfield Street, Morgantown, WV, USA.
• ⁹ Rutgers University, Department of Ecology, Evolution and Natural Resources, 14 College Farm, New Brunswick, NJ 08901, USA.
• ¹⁰ Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON, N9 B 3P4, Canada.
• ¹¹ Institute of Botany, The Czech Academy of Sciences, 25243 Průhonice, Czech Republic; Department of Ecology, Faculty of Science, Charles University, Viničná 7, 12844 Prague 2, Czech Republic.
• ¹² Centre for Invasion Biology, Department of Botany and Zoology Stellenbosch University, Matieland 7602, South Africa.
• ¹³ Smithsonian Environmental Research Center, Edgewater, MD 21037, USA.
• ¹⁴ University of Tennessee, Department of Ecology and Evolutionary Biology, Knoxville, TN 37996, USA.
• ¹⁵ Cambridge University, Department of Zoology, Pembroke Street, Cambridge CB2 3QZ, UK.
• ¹⁶ Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, 90183 Umeå, Sweden; Asian School of the Environment, Nanyang Technological University, 50 Nanyang Avenue, Singapore.