1. Institute of Geography and Institute of Environmental Systems Research, University of Osnabrück, Germany
2. Centre for Environmental Water Quality, Institute for Water Research, Rhodes University, Makhanda, South Africa
3. Faculty Technology, Policy and Management, Delft University of Technology, Delft, the Netherlands
4. Department of Conservation Ecology and Entomology, Stellenbosch University, Stellenbosch, South Africa
5. Cultural Anthropology and Development Sociology, Leiden University, Leiden, The Netherlands
6. Department of Geography and Resource Development, University of Ghana, Accra, Ghana