1. Environmental Change Inst., School of Geography and the Environment, Univ. of Oxford South Parks Road Oxford OX1 3QY UK
2. Dept of Ecology and Evolutionary Biology Princeton Univ. Princeton NJ 08544 USA
3. Dept of Integrative Biology Univ. of California – Berkeley CA 94720 USA
4. Section for Ecoinformatics and Biodiversity, Dept of Bioscience Aarhus Univ. Ny Munkegade 114 DK‐8000 Aarhus C Denmark
5. Missouri Botanical Garden PO Box 299 St Louis MO 63166‐0299 USA
6. CEFE UMR 5175, CNRS – Univ. de Montpellier – Univ. Paul‐Valéry Montpellier – EPHE – 1919 route de Mende FR‐34293 Montpellier Cedex 5 France
7. Dept of Ecology and Evolutionary Biology Univ. of Arizona Tucson AZ 85721 USA
8. Dept of Biology Univ. of Maryland College Park MD 20742 USA
9. Dept of Biology Univ. of North Carolina Chapel Hill NC 27599‐3280 USA
10. The Santa Fe inst. 1399 Hyde Park Road Santa Fe NM 87501 USA
11. Wildlife Conservation Society 2300 Southern Boulevard Bronx NY 10460 USA
12. Max Planck Inst. for Ornithology, St Louis Zoo, Charles Darwin Foundation, Whitney R. Harris World, Ecology Center, Washington Univ. in St Louis SUNY ESF
13. Depto de Ecologia Univ. Estadual Paulista (UNESP) 13506‐900 Rio Claro São Paulo Brazil