1. The International Center for Tropical Agriculture, c/o International Centre of Insect Physiology and Ecology, Nairobi, Kenya
2. Institute of Development Research and Development Policy, Ruhr-Universität, Bochum, Germany
3. Department of Geographical and Historical Studies, University of Eastern Finland, Joensuu, Finland
4. Integrated Health for All Foundation Head Quarters, Yaoundé, Cameroon
5. Department of Agricultural and Resource Economics, University for Development Studies, Tamale, Northern Ghana
6. Institute of Social and Cultural Anthropology, Georg-August Universität, Göttingen, Germany