David C. Goodrich,^* D. Phillip Guertin,^* I. Shea Burns,^* Mark A. Nearing,^* Jeffry J. Stone,^* Haiyan Wei,^* Philip Heilman,^* Mariano Hernandez,^* Ken Spaeth,^* Fred Pierson,^* Ginger B. Paige,^* Scott N. Miller,^* William G. Kepner,^* George Ruyle,^* Mitchel P. McClaran,^* Mark Weltz,^* Leonard Jolley<sup>*


*</sup>Authors are Research Hydraulic Engineer, USDA Agricultural Research Service Southwest Watershed Research Center, Tucson, AZ 85719, USA, dave.goodrich@ars.usda.gov (Goodrich); Professor, School of Natural Resources and the Environment, University of Arizona, Tucson, AZ 85721, USA (Guertin); Support Scientist (Burns), Research Agricultural Engineer (Nearing), Research Hydrologist (Stone), Agricultural Science Research Technician (Wei), Research Biologist and Research Leader (Heilman), and Hydrologist (Hernandez), USDA–ARS Southwest Watershed Research Center, Tucson, AZ 85719, USA; Rangeland Management Specialist, USDA Natural Resources Conservation Service Central National Technology, Fort Worth, TX 76115, USA (Spaeth); Research Leader, USDA–ARS Northwest Watershed Research Center, Boise, ID 83712, USA (Pierson); Assistant Professor (Paige) and Associate Professor (Miller), Department of Renewable Resources, University of Wyoming, Laramie, WY 82071, USA; Research Ecologist, Landscape Ecology Branch, US Environmental Protection Agency, Las Vegas, NV 89119, USA (Kepner); Professor and Extension Specialist (Ruyle) and Professor (McClaran), School of Natural Resources and the Environment, University of Arizona, Tucson, AZ 85721, USA; Acting Research Leader, USDA–ARS Exotic and Invasive Weed Research Unit, Reno, NV 89512, USA (Weltz); and Rangeland Ecologist, USDA–NRCS, Napa, CA 94558, USA (Jolley). Support for this research as provided by the US Department of Agriculture Rangeland Research Program and the NRCS Conservation Effects Assessment Program (CEAP; Web site available at: www.nrcs.usda.gov/TECHNICAL/NRI/ceap). USDA is an equal opportunity provider and employer.