Document Type: Research Article
Affiliations: 1: School of Forestry, Northern Arizona University, P.O. Box 15018, Flagstaff, AZ 86011, USA. 2: Bureau of Land Management, Arizona Strip Field Office, St. George, UT 84790, USA. 3: 575 East 43rd Avenue, Eugene, OR 97405, USA. 4: Navajo Natural Heritage Program, P.O. Box 1480, Window Rock, AZ 86515, USA. 5: Department of Evolution, Ecology, and Organismal Biology, 260 Jennings Hall, The Ohio State University, 1735 Neil Avenue, Columbus, OH 43210, USA. 6: Department of Ecology, Evolution, and Organismal Biology, 253 Bessey Hall, Iowa State Universities, Ames, IA 50011, USA.
Publication date: December 2, 2011