1. Mammal Research Institute Department of Zoology & Entomology University of Pretoria Hatfield South Africa
2. Department of Zoology & Wildlife Conservation College of Natural and Applied Sciences University of Dar es Salaam Dar es Salaam Tanzania
3. School of Biological and Chemical Sciences Queen Mary University of London London UK
4. South African Research Chair for Mammal Behavioural Ecology and Physiology Department of Zoology & Entomology University of Pretoria Hatfield South Africa