1. Brain Function Research Group School of Physiology Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
2. School of Human Sciences University of Western Australia Perth Western Australia Australia
3. South African Environmental Observation Network Arid Lands Node Kimberley South Africa
4. Gobabeb Research Institute Gobabeb Namibia
5. Centre for Environmental Management University of Free State Bloemfontein South Africa
6. School of Animal Plant and Environmental Sciences University of the Witwatersrand Johannesburg South Africa
7. Namibia University of Science and Technology Windhoek Namibia
8. Nature Conservation Programme Department of Environmental Sciences UNISA Florida South Africa
9. Desert Research Foundation of Namibia Windhoek Namibia