Institution: | 1.Wildland Resources Department and Ecology Center, Utah State University, 5230 Old Main Hill, Logan, UT, 84322, USA ;2.Department of Renewable Resources, University of Alberta, 4-42, Earth Sciences Building, Edmonton, AB, T6G 2E3, Canada ;3.Department of Plant and Environmental Sciences, John T Harrington Forestry Research Center, New Mexico State University, Mora, NM, 87732, USA ; |