1. A.R. Meyers Department of Fish, Wildlife, and Conservation Ecology, New Mexico State University, 2980 South Espina, Las Cruces, New Mexico 88003
2. S.A. Carleton U.S. Geological Survey, New Mexico Cooperative Fish and Wildlife Research Unit, New Mexico State University, 2980 South Espina, Las Cruces, New Mexico 88003
3. W.R. Gould Department of Economics and Applied Statistics, New Mexico State University, Box 30001/MSC 3CQ, Las Cruces, New Mexico 88003-8001
4. C.T. Nichols U.S. Fish and Wildlife Service, 2005 NE Green Oaks Boulevard Suite 140, Arlington, Texas 76006
5. D.A. Haukos U.S. Geological Survey, Kansas Cooperative Fish and Wildlife Research Unit, Manhattan, Kansas 660506
6. C.A. Hagen Oregon State University, 500 SW Bond Street, Suite 107, Bend, Oregon 97702