Portland State University. Department of Biology
Richard B. Forbes
Date of Award
Master of Science (M.S.) in Biology
1 online resource (54 p.)
Mammals -- Oregon -- Willamette River Watershed, Embankments, Clearing of land -- Oregon -- Willamette River Watershed
Over 115 miles of rock revetment have been constructed in the Willamette Basin to protect river banks. This study examines the effect on riparian mammals of maintaining these revetments by vegetation and debris clearing. Differences between cleared and uncleared revetments were measured using a canopy coverage method of vegetation analysis; mammals were studied by trapping, by direct observation, and by noting such signs as scats, tracks, etc.
Willis, Robert E., "Revetment clearing, its influence on riparian mammal communities" (1981). Dissertations and Theses. Paper 3152.