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Duncan Patten
1605 South 5th |
Duncan Patten is Research Professor with the Department of Land Resources and Environmental Sciences and affiliated faculty with the Big Sky Institute. He is also Professor Emeritus of Plant Biology at Arizona State University with a Ph.D. in plant ecology from Duke University. Duncan taught at Virginia Polytechnic Institute and State University before going to Arizona State University in 1965 and then moved to Montana State University in 1999. He has served on National Science Foundation panels, is a member of various committees, boards, and commissions of the National Research Council and has been an officer in the Ecological Society of America. At Arizona State University, he served as Assistant Vice President for Academic Affairs, Chairperson of the Department of Plant Biology and Microbiology, and Director of the University's Center for Environmental Studies, an interdisciplinary research center. He is a certified senior ecologist and a Fellow of the American Association for Advancement of Science.
Research of Dr. Patten and his students and colleagues is centered on the dynamics of plant communities and ecosystems. Systems that are being studied range from the desert to subalpine spruce-fir communities including riparian ecosystems that link the altitudinal zones together. Much of the research is oriented toward assessing the effects of human activities on these systems. Because ecosystems vary in their resistance and resiliency to disturbance, resource management decisions should be based on information about the response of the systems to types of perturbation. Types of perturbation studied by Duncan's group include recreation, fire, grazing, stream diversion, groundwater withdrawal, and potential facilities construction.
Studies of particular interest include determining factors of riparian and stream ecosystems that may be indicators of watershed health. This research uses remote sensing and groundtruthing data. Other research has looked at the effects of stream diversion and groundwater withdrawal on riparian ecosystems. The effects of different levels of stream dewatering diversion or pumping are evaluated relative to growth, maintenance and reproduction of riparian plant species. Biocomplexity research relating human and natural system models is being applied to wolf-ungulate-vegetation issues in the GreaterYellowstone area. Questions are being answered that will facilitate the management of streams and springs as well as expand our basic knowledge of species' reproductive responses, for example, response of subalpine wetlands to restoration. Understanding riparian ecosystem response to hydroclimatic changes resulting from global warming will guide long-term management of these systems. Additional information on watershed issues including land use and water quality is ongoing in the Big Sky area using Geographic Information Systems (GIS).
The goal of Patten's research program is to integrate basic and applied ecological research to permit better resource management decisions while expanding our knowledge of the basic functions of riparian, mountain and other western ecosystems.
Publications
1963 Patten, D. T. Vegetation patterns in relation to environments in the Madison Range, Montana. Ecological Monographs 33:375-406.
1963 Patten, D. T. Light and temperature influence on Engelmann spruce seed germination and forest advance. Ecology 44:817-818.
1968 Patten, D. T. Dynamics of the shrub continuum along the Gallatin River in Yellowstone National Park. Ecology 49:1107-1112.
1969 Patten, D. T. Succession from sagebrush to mixed conifer forest in the northern Rocky Mountains. American Midland Naturalist 82:229-240.
1969 Patten, D. T. Forest succession in Yellowstone National Park. National Park Magazine 43:21-22.
1969 Patten, D. T., and B. E. Dinger. Carbon dioxide exchange patterns of cacti from different environments. Ecology 50:686-688.
1970 Gibbs, J. G., and D. T. Patten. Heat flux and plant temperatures in a Sonoran Desert ecosystem. Oecologia 5:165-184.
1972 Dinger, B. E., and D. T. Patten. Carbon dioxide in selected species of Echinocereus (Cactaceae). Photosynthetica 6:345-353.
1972 Patten, D. T. Growth and productivity of cacti in relation to environments in the Sonoran Desert, North America. Pages 39-41 in L. E. Robin, ed., Eco-physiological Foundation of Ecosystems Productivity in Arid Zones, Nauka Publishing House, Leningrad, USSR.
1974 Dinger, B. E., and D. T. Patten. Carbon dioxide exchange and transpiration in species of Echinocereus (Cactaceae), as related to their distributions within the Pinaleno Mountains, Arizona. Oecologia 14:389-411.
1974 Halvorson, W. L., and D. T. Patten. Moisture stress in Upper Sonoran Desert shrubs in relation to soil moisture and topography. Ecology 55:173-177.
1974 Nisbet, R. A., and D. T. Patten. Seasonal temperature acclimation of a prickly pear cactus in south central Arizona. Oecologia 15:345-352.
1975 Halvorson, W. L., and D. T. Patten. Productivity and flowering of winter ephemerals in relation to Upper Sonoran Desert shrubs. American Midland Naturalist 93:311-319.
1975 Longstreth, D. J., and D. T. Patten. Conversion of chaparral to grass in central Arizona: effects on selected ions in watershed runoff. American Midland Naturalist 93:25-34.
1975 Patten, D. T. Energy flux and the thermal regime of desert plants. Pages 1-16 in N. D. Hadley, ed., Environmental Physiology of Desert Organisms, Dowden, Hutchinson and Ross, Inc., Stroudsburg, PA. 1978 Patten, D. T. Productivity and production efficiency of an Upper Sonoran Desert ephemeral community. American Journal of Botany 65:891-895.
1984 Cave, G. H., and D. T. Patten. Short-term vegetation responses to fire in the Upper Sonoran Desert. Journal of Range Management 37:491-496.
1984 Patten, D. T., and G. H. Cave. Fire temperatures and physical characteristics of a controlled burn in the Upper Sonoran Desert. Journal of Range Management 37:277-280.
1987 Smith, S. D., R. Monson, and D. T. Patten. Effects of artificially imposed shade on a Sonoran Desert ecosystem: microclimate and vegetation. Journal of Arid Environments 13:65-82.
1987 Smith, S. D., W. E. Smith, and D. T. Patten. Effects of artificially imposed shade on a Sonoran Desert ecosystem: arthropod and soil chemistry responses. Journal of Arid Environments 13:245-257.
1987 Patten, D.T., F. P. Conte, W.E. Cooper, J. Dracup, S. Dreiss, K. Harper, G.L. Hunt, Jr., P. Kilham, H.E. Kleiforth, J.M. Melack, and S.A. Temple. The Mono Basin Ecosystem. Effects of Changing Lake Level. National Academy Press, Washington, D.C.
1987 Stromberg-Wilkins, J., and D. T. Patten. Mast cropping in Arizona walnut. Pages 309-314 in Proceedings of the 8th Annual Meeting of the Society of Wetland Scientists, 26-29 May 1987, Seattle, WA.
1989 Patten, D. T. Effects of phased highway improvements, browsing and moisture stress on the riparian ecosystem along the Upper Gallatin River, Montana. Page 185 in R. E. Gresswell, B. A. Barton, and J. L. Kersher, eds., Proceedings of a Workshop on Riparian Resource Management, 8-11 May 1989, Billings, MT. U.S. Bureau of Land Management, Billings, MT.
1989 Patten, D. T., and W. C. Hunter. The formation of the Arizona Riparian Council: an example of lasting public interest in riparian resources. Pp. 537-539 in Proceedings of the California Riparian Systems Conference, U.S. Forest Service, General Technical Report PSW-110, Berkeley, CA. 1989 Stromberg, J. C., and D. T. Patten. Early recovery of an eastern Sierran riparian system following forty years of stream diversion. Pp. 399-404 in Proceedings of the California Riparian Systems Conference, U.S. Forest Service, General Technical Report PSW-110, Berkeley, CA.
1989 Stromberg, J. C., and D. T. Patten. Instream flow requirements for riparian vegetation. Pages 123-130 in G. R. Baumli, ed., Legal, institutional, financial, and environmental aspects of water issues. American Society of Civil Engineers, New York, NY.
1990 Stromberg, J. C., and D. T. Patten. Riparian vegetation instream flow requirements: a case study from a diverted stream in the eastern Sierra Nevada, California. Environmental Management 14:185-194.
1990 Stromberg, J. C., and D. T. Patten. Seed production and seedling establishment of a southwest riparian tree, Arizona walnut (Juglans major). Great Basin Naturalist 50(1):47-56.
1990 Stromberg, J. C., and D. T. Patten. Variation in seed size of a Southwestern riparian tree, Arizona walnut (Juglans major). American Midland Naturalist 124(2):269-277.
1990 Stromberg, J. C., and D. T. Patten. Flower production and floral ratios of a Southwestern riparian tree, Arizona walnut (Juglans major). American Midland Naturalist 124(2):278-288.
1991 Patten, D. T. Human impacts in the greater Yellowstone ecosystem: evaluating sustainability goals and eco-redevelopment. Conservation Biology 5 (3): 405-411.
1991 Stromberg, J. C., and D. T. Patten. Dynamics of the spruce-fir forest on the Pinaleno Mountains, Graham County, Arizona. Southwestern Naturalist 36(1):37-48.
1991 Stromberg, J. C., and D. T. Patten. Instream flow requirements for cottonwoods at Bishop Creek, Inyo County, California. Rivers 2(1):1-11.1991 Stromberg, J.C., D. T. Patten, and B. D. Richter. Flood flows and dynamics of Sonoran riparian forests. Rivers 2(3): 221-235.
1991 Wolden, L., J. Stromberg, D. Patten, and H. Richter. Understory restoration in three riparian forest types (Arizona). Restoration and Management Notes 8(2):116-117.
1991 Patten, D. T., and J. C. Stromberg. Ecological effects of urbanized watersheds. Pages 17-25 in Proceedings of the Third Bennial Watershed Conference, California Watershed Conference, California Water Resources Center, Univ. of California, Report No. 75, April 1991.
1991 Patten, D. T. Glen Canyon Environmental Studies research program: past, present, and future. Pp.239-253 in National Research Council. Colorado River ecology and dam management. National Academy Press, Washington, D.C. 276 pp.
1991 Patten, D. T. Defining the greater Yellowstone ecosystem. Pp. 19-26 in R. B. Keiter and M. K. Boyce (eds.), The greater Yellowstone ecosystem, Yale University Press.
1991 Patten, D.T. Ecosystem risk assessment: case studies of natural resource perturbation. Pp. 113-120 in National Research Council. Opportunities in Applied Environmental Research and Development. National Academy Press, Washington, D.C.
1991 Patten, D.T. and J.C. Stromberg. Instream flows for aquatic/riparian ecosystem integrity. Pp. 28-41 in Proceedings of the 1991 Annual Meeting of the University Council on Water Resources. UCOWR, Southern Illinois University, Carbondale, IL.
1991 Andrews, R.N.L., D. Bates, R.A. Conway, D. Hornig, D.T. Patten, F.S. Rowland, and A.C. Upton. Opportunities in Applied Environmental Research and Development. National Academy Press, Washington, D.C.
1992 Stromberg, J.C. and D.T. Patten. Mortality and age of black cottonwood stands along diverted and undiverted streams in the eastern Sierra Nevada, California. Madrono 39:205-223.
1992 Stromberg, J.C. and D.T. Patten. Response of Salix lasiolepis to augmented stream flows in the upper Owens River. Madrono 39:224-235.
1992 Risser, P.G., A.M. Bartuska, J.W. Bright, R.J. Contor, J.F. Franklin, T.A. Heberlein, J.C. Hendee, I.L. McHarg, D.T. Patten, R.O. Peterson, R.H.Wauer and P.S. White. Science and the National Parks. National Academy Press, Washington, D.C.
1992 Tarlock, A.D., D.C. Bell, B. Colby, L.M. Eisel, D.H. Getches, T.J. Graff, F. Gregg, R. K. Higginson, M.E. Jensen, D.T. Patten, C.B. Stalnaker, L.S. Torres, R. Trudell, H.J. Vaux, Jr., and S. Williams. Water Transfers in the West: Efficiency, Equity and the Environment. National Academy Press, Washington, D.C.
1993 Patten, D.T. Herbivore optimization and overcompensation, does response of western rangelands to native herbivory support these theories? Ecological Applications 3:35-36.
1993 Stromberg, J.C., B.D. Richter, D.T. Patten, and L.G. Woldon. Response of a Sonoran riparian forest to a 10-year return flood. Great Basin Naturalist 53(2):118-130.
1993 Stromberg, J.C. and D.T. Patten. Seed and cone production by Engelmann spruce in the Pinaleno Mountains, Arizona. J. Arizona-Nevada Academy of Sciences. 27(1): 79-88.
1993 Wiens, J.A., D.T. Patten, D.B. Botkin. Assessing ecological impact assessment: lessons from Mono Lake, California. Ecological Applications 3:595-609.
1993 Patten, D.T. Integrating science and decision making. Pp. 167-172. In Telman, B., H. Cortner, M. Wallace, L. DeBano, R. Hamre (tech. coords). Riparian management: common threads and shared interests. USDA Forest Service Gen. Tech. Rep. RM 226, Fort Collins, CO.
1993 Stromberg, J.C., M.R. Sommerfeld, D.T. Patten, J. Fry, C. Kramer, F. Amalfi, C. Christian. Release of effluent into the upper Santa Cruz River, Arizona: Ecological considerations. Pages 81-90 in Proceedings of the Symposium on Effluent Use Management. American Water Resources Association 29th Annual Conference, Tucson, AZ.
1994 Gabriel, I.E. and D.T. Patten. Distribution of copper smelter emissions in southeastern Arizona - using honey mesquite as a bioindicator. Water, Air and Soil Pollution 72:67-87.
1994 Suzan, H., G. Nabhan, D.Patten. Nurse plant and floral biology of a rare night-blooming Cereus (Peniocereus striatus). Conservation Biology 8:461-470.
1994 Gabriel, I.E. and D.T. Patten. Changes in the inorganic element concentration spectrum of mesquite foliage during operational and non-operational periods of a copper smelter. Water, Air and Soil Pollution 81:207-217.
1994 Averitt, E., F. Steiner, R.A. Yabes, D. Patten. An assessment of the Verde River Corridor Project in Arizona. Landscape and Urban Planning 28:161-178.
1995 Gabriel, I.E. and D.T. Patten. Establishing a "Sonoran Reference Plant" as standard for monitoring industrial and urban pollution throughout the Sonoran Desert. Environmental Monitoring and Assessment 36:27-43.
1995 Wolden, L.C., J.C. Stromberg, D.T. Patten. Flora and vegetation of the Hassayampa River Preserve, Maricopa County, Arizona. J. Arizona-Nevada Academy of Sciences 28:76-111.
1995 Patten, Duncan T. and Juliet C. Stromberg. Dynamics of the landscape patches in the old growth forest on Mount Graham (Pinaleno Mountains), Arizona. In DeBano et al (Tech. Coords.). Biodiversity and management of the Madrean Archipelago: The Sky Islands of southwestern United States and Northwestern Mexico. USDA Forest Service. Gen. Tech. Report RM -GTR-264.
1995 Stromberg, J.C. and D.T. Patten. Vegetation dynamics of the spruce-fir forests of the Pinaleno Mountains. In Istock, C.A. and R.S. Hoffman (eds). Storm Over a Mountain: Conservation Biology and the Mt. Graham Affair. University of Arizona Press, Tucson.
1996 Suzan, H., G.P. Nabhan and D.T. Patten. The importance of Olneya tesota as a nurse plant in the Sonoran Desert. J. of Vegetation Science 7: 635-644.
1996 Jacquez, G.M. and D.T. Patten. Chesneya nubigena on a Himalayan glacial moraine: a case of facilitation in primary succession. Mountain Research and Development 16: 265-273.
1996 Stromberg, J.C., and D.T. Patten. Instream flow and cottonwood growth in the Eastern Sierra Nevada of California, USA. Regulated Rivers: Research and Management 12:1-12.
1997 Stromberg, J.C., J. Fry, and D.T. Patten. Marsh development after large floods in an alluvial, arid-land river. Wetlands 17:292-300.
1997 Patten, D.T., J.C. Stromberg, M.L. Scott and M.K. Chew. Sustainability of western riparian ecosystems. p. 17-31 In W.L. Minckley (ed.) Aquatic Ecosystem Symposium. Denver, CO: Western Water Policy Review Advisory Commission. Springfield, VA: National Technical Information Service.
1998 Patten, D.T. Restoration as the order of the 21st Century: an ecologists perspective. pp. 69-77 In Keiter, R.B. (ed). Reclaiming the Native Home of Hope: community, ecology and the American West. University of Utah Press, Salt Lake City.
1998 Patten, D.T. Riparian ecosystems of semi-arid North America: diversity and human impacts. Wetlands 18:498-512.
1998 Shaftroth, P.B., G.T. Auble, J.C. Stromberg, and D.T. Patten. Establishment of woody riparian vegetation in relation to annual patterns of streamflow, Bill Williams River, Arizona. Wetlands 18:577-590.
1999 Springer, A.E., J.M. Wright, P.B. Shafroth, J.C. Stromberg, and D.T. Patten. Coupling groundwater and riparian vegetation models to assess effects of reservoir releases. Water Resources Research 35:3621-3630.
1999 Webb, R.H., D.L. Wegner, E.D. Andrews, R.A. Valdez, and D.T. Patten. Downstream effects of Glen Canyon Dam on the Colorado River in Grand Canyon: A Review. Pp. 1-22 In Webb, R.H., J.C. Schmidt, G.R. Marzolf, and R.A Valdez (eds.). The Controlled Flood in the Grand Canyon. Geophysical Monograph 110. American Geophysical Union. Washington, D.C.
1999 Schmidt, J.C., E.D. Andrews, D.L. Wegner, D.T. Patten, G.R. Marzolf, and T.O. Moody. Origins of the 1996 controlled flood in Grand Canyon. Pp. 23-36 In Webb, R.H., J.C. Schmidt, G.R. Marzolf, and R.A Valdez (eds.). The Controlled Flood in the Grand Canyon. Geophysical Monograph 110. American Geophysical Union. Washington, D.C.
2000 Shafroth, P.B., J.C. Stromberg, and D.T. Patten. Woody riparian vegetation response to different alluvial water table regimes. Western North America Naturalist 60:66-76.
2000 Patten, D.T. Riparian ecosystems of North Americas Intermountain West and adjacent plains. Pp. 245-250 In Wigington, P.J. and R.L Beschta (eds). Riparian Ecology and Management in Multi-Land Use Watersheds. American Water Resources Association. Middleburg, VA. TPS-00-2. 616 pp.
2001 Patten, D.T. Transformation of the Colorado River. Pp. 211-215. In A.S. Goudie and D.J. Cuff (eds.) Encyclopedia of Global Change. Oxford University Press.
2001 Patten, D.T., and L.E. Stevens. Restoration of the Colorado River ecosystem using planned flooding. Ecological Applications 11:633-634.
2001 Patten, D.T., D.A. Harpman, M.I. Voita, and T.J. Randle. A managed flood on the Colorado River: background, objectives, design, and implementation. Ecological Applications 11:635-643.
2001 Marler, R.J., J.C. Stromberg, and D.T. Patten. Growth response of Populus fremontii, Salix gooddingii, and Tamarix ramosissima seedlings under different nitrogen and phosphorus concentrations. Journal of Arid Environments 49:133-146.
2002 Shafroth, P.B., J.C. Stromberg, and D.T. Patten. Riparian vegetation response to altered disturbance and stress regimes. Ecological Applications. 12:107-123.
2006 Healey, M.C., P.L. Angermeier, K.W. Cummins, T. Dunne, W. J. Kimmerer, G.M. Kondolf, P.B. Moyle, D. D. Murphy, D.T. Patten, D.J. Reed, R.B. Spies, R.H. Twiss. (forthcoming). Conceptual Models and Adaptive Management in Ecological Restoration: The CALFED Bay-Delta Environmental Restoration Program. Environmental Management.
2006 Patten, D.T. (in press). Restoration Goals and Success for Wetland and Riparian Systems: The Role of Science, Adaptive Management, Historic Perspectives, and Public Values and Policy. Journal of Contemporary Water Research and Education.
2007 Patten, D.T. Vegetation dynamics of Great Basin springs: Potential effects of groundwater withdrawal.Chapter 14 In Stevens, L. and V. Meretsky (eds). Every Last Drop. University of Arizona Press, Tucson.
Grants (1983 to present)
Fire effects following prescribed burning in a selected desert ecosystem. U.S. Forest Service, 1983-87. $18,000
Riparian vegetation response model. Southern California Edison, 1986. $15,454
Inventory and evaluation of riparian vegetation along lower Rush Creek, Mono County, California. Los Angeles Department of Water and Power, 1987. $9,008
Riparian vegetational changes along Bishop Creek: an historical photo interpretation. Desert Research Institute/Southern California Edison, 1988. $7,150
Evaluation sensitivity to disturbance of high-elevation ecosystems in the Pinaleno Mountain. Research Corporation, 1988. $25,000
Dynamics of riparian species along Rush Creek. Los Angeles Department of Water and Power, 1988. (With J. Stromberg.) $30,015
Restoration of riparian herbaceous understory. Arizona Nature Conservancy, 1989. (With J. Stromberg.) $3,000
Cone production by conifers at high elevation sites in the Pinaleno Mountains. Research Corporation, 1989-91. (With J. Stromberg.) $22,300
IGPA. Department of the Interior, Bureau of Reclamation, 1989-91. $102,580 1991-93 $84,501
Instream flow requirements for riparian vegetation at Bishop Creek, Inyo County, California. Southern California Edison, 1989-92. (With J. Stromberg.) $64,310
Effective management of water resources: a function of geomorphology and instream flow requirements. U.S. Geological Survey, 1990-92. (With J. Stromberg.) $36,740
Instream flow needs of riparian trees. Los Angeles Department of Water and Power (Jones and Stokes, Prime). (With J. Stromberg). 1990-1991. $52,608
Development of best management practices for water and riparian resources along the Santa Cruz watershed, U.S./Mexico border. EPA (Southwest Center for Envir. Research and Policy) (with J. Stromberg, M. Sommerfeld and D. Green). 1992. $104,000
Science Advisory Committee: Glen Canyon Environmental Studies, Dept. of the Interior (Bureau of Reclamation). Integration and Evaluation. 1993-1998. $590,750
Effects of modified groundwater and surface water on riparian and wetland ecosystems in Nevada. UNLV (National Park Service prime). (with J.C. Stromberg). 1992-97. $126,835
Water and riparian resources of the Santa Cruz River basin: best management practices for water and resource quality. EPA (with J. Stromberg and M. Sommerfeld). 1993-94. $173,658.
Water quality and discharge issues at Ambos Nogales: use of a border environmental action team to assist in information analysis, problem solving, and action plan development. EPA 1993-1995. $31,520
Groundwater recharge and riparian habitat enhancement... Arizona Department of Water Resources (with J. Stromberg) 1995-96. $30,910
Functional assessment of effluent dominated riparian ecosystems. University of Arizona (USGS) (with J. Stromberg) 1995-96. $23,020
Long-term research and monitoring of cottonwood and other riparian woody plants in the Bill Williams Wildlife Refuge. USFWS. (With J. Stromberg) 1995-97. $25,622
Dam management and riparian ecosystems. Univ. Of Ariz. (With J. Stromberg)
1995-96. $10,240
Assessment of the role of effluent dominated rivers in supporting riparian functions. Arizona Water Protection Fund. (with J. Stromberg). 1996-97. $46,750
Riparian vegetation restoration for the Provo River Restoration Project. Utah Reclamation Mitigation and Conservation Commission (with J. Stromberg).
1997-99. $42,000
Developing effective ecological indicators for watershed analysis. Environmental Protection Agency. Yellowstone Ecosystem Studies and Montana State University, Bozeman, MT. (Principal Investigator with Co-PIs A. Marcus, R. Lawrence, W. Minshall)
1999-2003 $868,242
Developing Conceptual Models for the Yellowstone Network. NPS Cooperative Agreement 2002-2004 $43,000
Complexities Across Boundaries: Coupled human and natural systems across the Yellowstone National Park northern winter elk range. National Science Foundation Biocomplexity program. (Co-PI with D. McGinnis, D. Bennett, W. Travis, J. Shogren) 2002-2006 $660,000
Professional Positions and Awards
Academic Preparation
A.B., Biology-Chemistry, Amherst College, 1956
M.S., Botany, University of Massachusetts, 1959
Ph.D., Botany-Ecology, Duke University, 1962
Academic Experience
Assistant Professor 1962-65, Virginia Polytechnic Institute
Assistant Professor to Professor 1965-95, Arizona State University
Professor Emeritus 1995 - , Arizona State University
Research Professor 1999-, Land Resources and Environmental Sciences, Montana State University and Big Sky Institute, Bozeman, MT
Administrative Experience
Chairman, Faculty Assembly, President, Faculty Senate, Arizona State University (elected position), 1971-72.
Assistant Academic Vice President, Arizona State University, 1972-76.
Chairman, Department of Botany and Microbiology, Arizona State University, January 1977-July 1981.
Director, Center for Environmental Studies, Arizona State University, 1980-1995.
Business Manager, Ecological Society of America, 1979-1995.
President, Arizona Riparian Council, 1985-89.
President, Society of Wetland Scientists, 1996-97
Other Professional Experience
Bureau of Reclamation - Department of the Interior.
Senior Scientist, Department of the Interior, Bureau of Reclamation, Glen Canyon Environmental Studies 1989-1996.
National Research Council/National Academy of Sciences: Committees, Boards, and Commissions.
Member, Environmental Assessment Committee, Environmental Studies Board, Commission of Natural Resources, 1975-76. Chairman: Panel on Environmental Impacts of Resource Management.
Chairman, Mono Basin Ecosystem Study, Board on Environmental Studies and Toxicology, 1985-87.
Member, Glen Canyon Environmental Studies Committee, Water Science and Technology Board, 1986-89, ex officio 1989-1996.
Member, Board on Environmental Studies and Toxicology, 1987-90.
Member, Committee on Opportunities in Applied Environmental Research and Development, Board on Environmental Studies and Toxicology, 1988-91.
Member, Committee on Western Water Management Change, Water Science and Technology Board, 1989-91.
Member, Committee on Science in the National Parks, Board on Environmental Studies and Toxicology, 1989-92.
Member, Commission on Geoscience, Environment and Resources, 1990-93.
Member, Planning Committee for Managing Water Resources and Water Quality Along the U.S./Mexico Border. Water Science and Technology Board. 1993.
Chair, Committee to Evaluate Navys Extreme Low Frequency Antenna Ecological Monitoring Program, Board on Environmental Studies and Toxicology. 1995-97.
Member, Committee on Ungulate Management in Yellowstone National Park, Board on Environmental Studies and Toxicology, 1998-2001.
Member, Committee on Hardrock Mining on Federal Lands, Board on Earth Sciences and Resources, 1999
Member, GAO Funded Workshop on Environmental Indicator Sets (organized by NAS)
National Science Foundation:
Scientific Consultant to the National Science Foundation, 1973-75.
Panel Member -- National Science Foundation: Environmental Biology 1975-76 and Ecological Sciences, 1976-78.
Heinz Center for Science, Economics and the Environment,Washington, D.C.
Chair, State of the Nation’s Ecosystems: Grass/Shrubland Committee
Member, Design Committee, The State of the Nations Ecosystems Project
Advisory Activities:
Member, Man and the Biosphere-4 Directorate: Arid and Semi-Arid Lands, 1988-90.
Science Advisory Council, Greater Yellowstone Coalition, 1988-present.
Chair, Technical Advisory Committee, National Institute for Global Environmental Change, 1994-96; member, 1990-96.
Chair, Technical Advisory Committee, Southwest Center for Environmental Research and Policy. 1993-1995.
Scientific and Technical Advisory Committee member. American Rivers, 1993-present.
Chair, Technical Advisory Committee, Yellowstone River Cumulative Effects Task Force, 1999- present.
Science Board, CALFED, Bay-Delta Watershed Ecosystem Restoration Program. December 1999 to 2005.
Independent Science Board, California Bay-Delta Authority. October 2003 to present.
Awards and Honors
Phi Sigma 1963
Sigma Xi 1959 (Associate), 1962 (Full)
Arizona State University Chapter:
Treasurer, 1966-68
President-Elect, 1968-69
President, 1969-70
Certified Senior Ecologist, Ecological Society of America
American Association for the Advancement of Science, Fellow 1979
Arizona/Nevada Academy of Sciences, Fellow 1976.
Ecological Society of America, Distinguished Service Award. 1994.
Bureau of Reclamation, Citizens Award. 1996.