1. Council of Scientific and Industrial Research (CSIR), Natural Resources and Environment, Post Office Box 395, Pretoria 0001, South Africa.
2. Centre for Population Biology, National Environment Research Council, Imperial College London, Silwood Park, Ascot, Berkshire, SL5 7PY, UK.
3. Earth Science Division, U.S. National Aeronautics and Space Administration (NASA) Headquarters, 300 E Street S.W., Washington, DC 20546-0001, USA.
4. NASA Ecological Forecasting Program, Jet Propulsion Laboratory, California Institute of Technology, MS171-264, 4800 Oak Grove Drive, Pasadena, CA 91109-8099, USA.
5. University of Hamburg, BioCentre Klein Flottbek and Botanical Garden, Ohnhorststrasse 18, 22609 Hamburg, Germany.
6. DIVERSITAS, Muséum National d'Histoire Naturelle, Maison Buffon, 57, rue Cuvier-Case Postale 41, 75231 Paris, Cedex 05, France.
7. Group on Earth Observations (GEO), 7 bis, avenue de la Paix, Case Postale 2300, CH-1211 Geneva 2, Switzerland.
8. Department of Biological Sciences, Stanford University, Stanford, CA 94305, USA.