David M. Olson,^* Eric Dinerstein,^* Eric D. Wikramanayake,^* Neil D. Burgess,^* George V. N. Powell,^* Emma C. Underwood,^** Jennifer A. D'amico,^* Illanga Itoua,^*** Holly E. Strand,^* John C. Morrison,^* Colby J. Loucks,^* Thomas F. Allnutt,^* Taylor H. Ricketts,^**** Yumiko Kura,^***** John F. Lamoreux,^* Wesley W. Wettengel,^* Prashant Hedao,^****** Kenneth R. Kassem<sup>*


*</sup>David Olson (david.olson@wwfus.org), Eric Dinerstein, Eric Wikramanayake, Neil Burgess, George Powell, Jennifer D'Amico, Holly Strand, John Morrison, Colby Loucks, Thomas Allnutt, John Lamoreux, Wesley Wettengel, and Kenneth Kassem are conservation scientists in the Conservation Science Program at World Wildlife Fund–US, Washington, DC 20037.
^**Emma Underwood is a doctoral candidate in the Graduate Group in Ecology, Information Center for the Environment, University of California, Davis, CA 95616.
^***Illanga Itoua is a conservation biologist, 78230 Le Pecq, France.
^****Taylor Ricketts is a postdoctoral researcher at the Center for Conservation Biology, Department of Biological Sciences, Stanford University, Palo Alto, CA 94305.
^*****Yumiko Kura is a conservation specialist with the World Resources Institute, Washington, DC 20002.
^******Prashant Hedao is a conservation GIS specialist with Environmental Systems Research Institute, Inc., Redlands, CA 92373.