1. Depatment of Zoology; Centre for Behavioural and Physiological Ecology; University of New England; Armidale NSW 2350 Australia
2. Cambodian Agricultural Research and Development Institute (CARDI); P.O. Box 1 Phnom Penh 12302 Cambodia
3. Agricultural Systems Research Cambodia Co. Ltd; Battambang 02353 Cambodia
4. Maddox Jolie-Pitt Foundation (MJP); Group #02, Rumchek 4 Village, Rotanak Commune Battambang 02353 Cambodia
5. Tamworth Agricultural Institute; NSW Department of Primary Industries; 4 Marsden Park Road Calala NSW 2340 Australia