Oregon State University
Department of Rangeland Ecology and Management
1050 W. Langstroth Drive
Silver City, NM 88061
Assistant Professor, Department of Rangeland Ecology and
Management."Semi-retired." Teach distance courses from home in Silver
City, New Mexico. Formerly Program Lead for Natural Resources B. S.
program, Extended Campus, OSU (1999-2005) and Program Lead for Natural
Resources B.S. program, Cascades Campus, OSU (2001-2005).
M.S., Forestry/Range Management, University of Montana, 1992
Ph.D., Military/Diplomatic History, The University of Texas, 1975
M.A., Diplomatic History, The University of Texas, 1970
A.B., History, Gettsburg College, 1967
Prior Work Experience
United States Air Force, 1967-1987
Riparian and Wetland Research Program, University of Montana, 1993-1999
and Technical Reports:
Ehrhart, Robert C. and Paul L. Hansen. 2004. "Management of
Riverine Wetland Habitats." In: Wetland and Riparian Areas of the
Intermountain West: Ecology and
Management. Edited by Mark
Wayne A. Hubert, and Stanley H.
of Texas Press, Austin
Ehrhart, R. C.
and P. L. Hansen. 1998. Effective cattle
management in riparian zones. Montana
BLM Riparian Technical Bulletin No. 3. Montana
For. and Conserv. Exp.
Sta., School of Forestry, The University of Montana, Missoula MT.
Ehrhart, R. C.
and P. L. Hansen. 1998. Successful strategies for grazing cattle in riparian zones. Montana BLM Riparian Technical
Bulletin No. 4. Montana
Conserv. Exp. Sta., School of Forestry, The University of Montana, Missoula
MT. (Reprinted by BLM in 2004 and 2009.)