1. Murdoch University; 90 South Street Murdoch WA 6150 Australia
2. Vertebrate Pest Research Unit; NSW Department of Primary Industries; 1447 Forest Road Orange NSW 2800 Australia
3. The University of Melbourne; Parkville VIC 3010 Australia
4. Ausvet Animal Health; P.O. Box 1278 Toowoomba QLD 4350 Australia
5. Kingfisher Research; 177 Progress Road Eltham VIC 3089 Australia