Response of red willow trees to simulated beaver herbivory was measured in the Jordan Crater Research Natural Area in southeastern Oregon. Lava flows excluded livestock and beaver from the test population. In early 1982 dimensions of 18 red willow trees in this stand were recorded. Following these measurements, two randomly selected trees from the 18 that were measured were cut down to simulate beaver herbivory. Every two months from March through November, a different pair of trees was cut down. The trees were not re-cut and regrowth was measured every month, except during winter, for two years to determine how timing of beaver herbivory affected willow regrowth.
Citations and enhanced abstracts for journals articles and documents focused on rangeland ecology and management. RSIS is a collaboration between Montana State University, University of Idaho, and University of Wyoming.