1. University of Groningen, Nijenborg 7, 9747AG Groningen, Netherlands.
2. Syracuse University, 107 College Place, Syracuse, NY 13244, USA.
3. University of Hohenheim, Fruwirthstrasse 23, 70599 Stuttgart, Germany.
4. University of Glasgow, Glasgow G128QQ, UK.
5. University of York, York YO10 5DD, UK.
6. Pennsylvania State University, University Park, PA 16802, USA.
7. The Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania.
8. Tanzania National Parks, Arusha, Tanzania.
9. Directorate of Resource Surveys and Remote Sensing, P.O. Box 47146-00100, Nairobi, Kenya.
10. University of Liverpool, Liverpool L69 3GO, UK.
11. University of the Witwatersrand, Wits 2050, Johannesburg, South Africa.
12. University of Pretoria, Pretoria 0002, South Africa.