Professor of Range and Watershed Management• Courses Taught: Introduction to Range Management, Range Forage Plants, Dendrology, Map Drafting and Reading, Principles of Conservation, Range Management, Range and Forest Ecology, Rangeland Inventory and Monitoring, Grazing Ecology and Management, International Range Management, Watershed Management, Natural Resource Management Practices, Ranch Management and Planning, Graduate Seminar in Range Management, Graduate Seminar in Natural Resources Management.• Forage Crops and Range Management Advisor, University of Arizona Brazil Contract, Universidade Federal do Ceara, Fortaleza, Brazil, 1966-69• Chief-of-Party, University of Arizona Brazil Contract, Universidade Federal do Ceara, Fortaleza, Ceara, Brazil, 1972-73• U.S. Forest Service (part-time) to conduct workshops on implementation of National Forest Management Act, 1981-82• Visiting Scientist, CSIRO Division of Wildlife and Rangeland Research, Deniliquin, N.S.W., Australia, 1983-84• Chairman, Rangeland and Forest Resources Program, School of Renewable Natural Resources, University of Arizona, 1980-1996