1. Centre for Behavioural and Physiological Ecology, Zoology, University of New England, Armidale, Australia
2. School of Environmental and Rural Sciences, University of New England, Armidale, Australia
3. Saskatoon Research Centre, Agriculture and Agri-Food Canada, Saskatoon, Canada
4. Department of Biology, University of York, York, UK
5. Department of Agricultural Biology, National Academy of Agricultural Science, Suwon, South Korea