1. Department of Natural Resources, Faculty of Geo-Information Science and Earth Observation, University of Twente, Enschede, The Netherlands
2. The National Academies of Sciences, Washington, DC, USA
3. Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA
4. U.S. Army Research Laboratory, Army Research Office, Durham, USA
5. Department of Research, Wildlife Research and Training Institute, Naivasha, Kenya