1. Department of Environmental and Occupational Studies, Faculty of Applied Sciences, Cape Peninsula University of Technology, Corner of Hanover and Tennant Street, Zonnebloem, Cape Town 8000, South Africa
2. Department of Water and Sanitation, 35 Brown Street, Mbombela 1200, South Africa
3. Department of Biodiversity, University of Limpopo, Sovenga, South Africa Private Bag X1106, Polokwane 0727, South Africa
4. Department of GIS and Remote Sensing, University of Fort Hare Alice Campus, Ring Road, Fort Beaufort 5700, South Africa
5. Department of Geography, Kisii University, Kisii Town P.O. Box 408-40200, Kenya