1. Department of Biology, University of Ottawa, Ottawa, ON, Canada K1N 6N57
2. Department of Integrative Biology, University of Guelph, Guelph, ON, Canada N1G 2W1
3. Department of Zoology, University of British Columbia, Vancouver, BC, Canada V6T 1Z4
4. Department of Biology, McMaster University, Hamilton, ON, Canada L8S 4K1