1. Nocturnal Wildlife Research Pty Ltd., P.O. Box 2126, Melbourne, VIC 3145, Australia
2. Manaaki Whenua Landcare Research, Lincoln P.O. Box 69040, New Zealand
3. Queensland Department of Agriculture Fisheries and Forestry, Toowoomba, QLD 4350, Australia
4. Natural Resources Institute Finland (Luke), Production Systems, Halolantie 31 A, FI-71750 Maaninka, Finland