1. Unit of Environmental Sciences and Management; North-West University; Potchefstroom South Africa
2. South Sugarcane Research Institute; Private Bag X02; Mount Edgecombe South Africa
3. Department of Conservation Ecology and Entomology; Stellenbosch University; Private Bag X01; Matieland South Africa
4. Eduardo Mondlane University; Faculty of Agronomy and Forest Engineering; Maputo Mozambique
5. IRD; UR072, Laboratoire Evolution; Génomes et Spéciation (LEGS); UPR 9034; CNRS; Gif-sur-Yvette Cedex France
6. ICIPE Nairobi Kenya
7. Université Paris-Sud 11; Orsay Cedex France