1. Department of Geography and Environmental Studies, School of Agricultural and Environmental Sciences, University of Limpopo, Polokwane, South Africa
2. Risk and Vulnerability Science Centre/VLIR-IUC Programme, University of Limpopo, Polokwane, South Africa
3. School of Geography, Archaeology and Environmental Studies, University of the Witwatersrand, Johannesburg, South Africa
4. School of Agriculture, Earth and Environmental Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Pietermaritzburg, South Africa