1. World Animal Protection, 90 Eglinton Avenue East #960, Toronto, ON M4P 2Y3, Canada
2. Ecology & Environment Research Centre, Department of Natural Sciences, Manchester Metropolitan University, Manchester M1 5GB, UK
3. Department of Geography, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
4. Monitor Conservation Research Society, Box 200, Big Lake Ranch, BC V0L 1G0, Canada
5. Wildlife Conservation Research Unit (WildCRU), Department of Biology, University of Oxford, The Recanati-Kaplan Centre, Abingdon Road, Tubney, Oxfordshire. OX13 5QL, UK