SECTION EDITORS LIST Charles Perrings EcoSERVICES Group School of Life Sciences Arizona State University PO Box 874501 Tempe, AZ 85287 USA David M Karl Professor of Oceanography University of Hawaii Honolulu, HI 96822 USA G David Tilman Regents Professor and McKnight Presidential Chair in Ecology Department of Ecology, Evolution and Behavior University of Minnesota St Paul, Minnesota 55108 USA Gretchen C Daily Department of Biology Stanford University 377 Serra Mall Stanford, CA 94305-5020 USA Monica G Turner Eugene P Odum Professor of Ecology Department of Zoology, Birge Hall University of Wisconsin Madison, WI 53706 USA Robert K Colwell University of Connecticut Department of Ecology & Evolutionary Biology 75 N Eagleville Road, Unit 3043 Storrs, CT 06269-3043 USA Sandra Diaz IMBIV Casilla de Correo 495 Velez Sarsfield 299 5000 Cordoba Argentina Peter Kareiva Chief Scientist & Director Science The Nature Conservancy 4722 Latona Ave NE Seattle, WA 98105 USA Georgina M Mace Division of Biology Centre for Population Biology Imperial College London Silwood Park, Ascot Berks, SL5 7PY UK ix