1. School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Camperdown, NSW 2006, Australia
2. School of Veterinary Science, Faculty of Science, The University of Sydney, Camperdown, NSW 2006, Australia
3. Royal Society for the Prevention of Cruelty to Animals (RSPCA) NSW, Yagoona, NSW 2199, Australia
4. School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia