Biogeomorphic feedbacks in the Southwestern USA: exploring the mechanisms of geomorphic change and the effectiveness of mitigation measures

David J Dean, US Geological Survey, Southwest Biological Science Center, Grand Canyon Monitoring and Research Center, Flagstaff, AZ, United States, Rebecca M Diehl, University of Montana, Department of Geosciences, Missoula, MT, United States and David J. Topping, US Geological Survey, Flagstaff, AZ, United States