1. Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa
2. Herding 4 Health Programme, Africa Field Division, Conservation International, Nairobi, Kenya
3. Conservation South Africa, Cape Town, South Africa
4. Department of Veterinary Tropical Diseases, University of Pretoria, Pretoria, South Africa
5. Department of Biological Sciences, University of Cape Town, Cape Town, South Africa