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Pyke, David A.

Supervisory Research Ecologist
Email: david_a_pyke@usgs.gov
Ph: 541-750-7334; Fax:541-758-8806
3200 SW Jefferson Way
Corvallis, OR 97331

Education:
Washington State University, Pullman, WA
Ph.D. Botany, July 1983
M.S. Forest and Range Management January, 1977
B.S. Range Management, Wildlife option, January, 1976

Expertise/Specialty:
Plant ecology, restoration ecology, monitoring and assessments of ecosystem status of rangelands (grassland, shrublands and savannas)

Research Interests:
Population ecology of native and invasive plants in the Intermountain West. Monitoring protocols for ecosystem integrity on wild lands. Restoration ecology of native plants on disturbed and invaded lands.

View all Studies Featured Studies:

View all Publications Select Publications:
Website- Monitoring Post-fire Vegetation Rehabilitation Projects- A Common Approach for Non-forested Ecosystems (ES&R) [Link], Wirth, T.A., Pyke, D.A.
Wirth, T.A., Pyke, D.A., 2007, Monitoring Post-fire Vegetation Rehabilitation Projects- A Common Approach for Non-forested Ecosystems (ES&R): U.S. Geological Survey Scientific Investigations Report 2006-5048, p. 36. [Highlight] [FullText] Catalog No: 1814
Beever, E.A., Huso, M., Pyke, D.A., 2006, Multiscale responses of soil stability and invasive plants to removal of non-native grazers from an arid conservation reserve: Diversity and Distributions, v. 12, no. 3, p. 258-268. [Highlight] [Abs] [FullText] Catalog No: 1695
Stubbs, M.M., Pyke, D.A., 2005, Available nitrogen- a time-based study of manipulated resource islands: Plant and Soil, v. 270, no. 1, p. 123-133. [Highlight] [Abs] [FullText] Catalog No: 1357
Pellant, M., Shaver, P., Pyke, D.A., Herrick, J.E., 2005, Interpreting Indicators of Rangeland Health-Version 4: Bureau of Land Management, National Science and Technology Center Technical Reference 1734-6, p. 122. [Highlight] [FullText] Catalog No: 1385
Beever, E.A., Pyke, D.A., Chambers, J.C., Landau, F., Smith, S.D., 2005, Monitoring temporal change in riparian vegetation of Great Basin National Park: Western North American Naturalist, v. 65, no. 3, p. 382-402. [Highlight] [FullText] Catalog No: 1389
Beever, E.A., Pyke, D.A., 2004, Integrated monitoring of hydrogeomorphic, vegetative, and edaphic conditions in riparian ecosystems of Great Basin National Park, Nevada: U.S. Geological Survey Scientific Investigations Report 2004-5185, p. 88. [Highlight] [FullText] Catalog No: 1289
Clausnitzer, D., Huso, M., Pyke, D.A., Belnap, J., Graham, T.B., Sanford, R.L., Phillips, S., 2003, Interactions of cattle grazing and climate change- hierarchical data analysis In Allsopp, N., Walker, N., eds., VIIth International Rangeland Conference Proceedings, 26 July-1 August 2003, Durban, South Africa: {PlaceOfPublication}, {BookPublisher}, p. 1062-1064. [FullText] Catalog No: 1298
Spaeth, K.E., Pierson, F.B., Herrick, J.E., Shaver, P., Pyke, D.A., Pellant, M., Thompson, D., Dayton, B., 2003, New proposed national resources inventory protocols on nonfederal rangelands: Journal of Soil and Water Conservation, v. 58, no. 1, p. 18A-21A. [Highlight] [FullText] Catalog No: 1184
Kaye, T.N., Pyke, D.A., 2003, The effect of stochiastic technique on estimates of population viability from transition matrix models: Ecology, v. 84, no. 6, p. 1464-1476. [Highlight] [FullText] Catalog No: 1210
Wirth, T.A., Pyke, D.A., 2003, Restoring forbs for sage grouse habitat- Fire, microsites, and establishment methods: Restoration Ecology, v. 11, no. 3, p. 370-377. [Highlight] [FullText] Catalog No: 1215
Pyke, D.A., Herrick, J.E., Pellant, M., Pellant, M., 2003, What is the standard for rangeland health assessments? In Allsopp, N., Walker, N., eds., Proceedings of the VII International Rangeland Congress, 28 July - 1 August 2003, Durban, South Africa: Durban, South Africa, International Rangeland Congress, p. 764-766. [Highlight]  [FullText] Catalog No: 1220
Pyke, D.A., Knick, S.T., 2003, Plant invaders, global change, and landscape restoration: African Journal of Range and Forage, p. 278-288. [Highlight] [FullText] Catalog No: 1221
Pyke, D.A., Herrick, J.E., 2003, Transitions in Rangeland Evaluations: Rangelands, v. 25, no. 6, p. 22-30. [FullText] Catalog No: 1241
Brooks, M.L., Pyke, D.A., 2002, Invasive plants and fire in the deserts of North America In Galley, K.E., Wilson, T.P., eds., Proceedings of the invasive species workshop- The role of fire in the control and spread of invasive species. Fire Conference 2000- the First National Congress on Fire Ecology, Prevention, and Management: Misc. Publication No. 11, Tallahassee, FL, Tall Timbers Research Station, p. 1-14. [FullText] Catalog No: 1078
Pyke, D.A., Herrick, J.E., Shaver, P., Pellant, M., 2002, Rangeland health attributes and indicators for qualitative assessment: Journal of Range Management, v. 55, no. 6, p. 584-597. [Highlight] [FullText] Catalog No: 1144
Humphrey, L.D., Pyke, D.A., 2001, Ramet spacing of Elymus lanceolatus (thickspike wheatgrass) in response to neighbor density: Canadian Journal of Botany, v. 79, no. 9, p. 1122-1126. [FullText] copyrighted material courtesy of NRC Research Press Catalog No: 1052
Huber-Sannwald, E., Pyke, D.A., Caldwell, M.M., Durham, S., 1998, Effects of nutrient patches and root systems on the clonal plasticity of a rhizomatous grass: Ecology, v. 79, no. 7, p. 2267-2280. [FullText] Catalog No: 415
Humphrey, D.L., Pyke, D.A., 1998, Demographic and growth responses of a guerrilla and a phalanx perennial grass in competitive mixtures: Journal of Ecology, v. 86, no. 5, p. 854-865. [Abs] [FullText] Catalog No: 472
Trask, M.M., Pyke, D.A., 1998, Variability in seed dormancy of three Pacific Northwestern grasses: Seed Science and Technology, v. 26, no. 1, p. 179-191. [FullText] Catalog No: 687
Francis, M.G., Pyke, D.A., 1997, Mixed-density designs for evaluating plant interactions during revegetation: Rangelands, v. 19, no. 1, p. 23-26. [FullText] Catalog No: 686
Huber-Sannwald, E., Pyke, D.A., Caldwell, M.M., 1997, Perception of neighboring plants by rhizomes and roots- morphological manifestations of a clonal plant: Canadian Journal of Botany, v. 75, no. 12, p. 2146-2157. [Abs] [FullText] copyrighted material courtesy of NRC Research Press. Catalog No: 27
Humphrey, L.D., Pyke, D.A., 1997, Clonal foraging in perennial wheatgrasses- A strategy for exploiting patchy soil nutrients: Journal of Ecology, v. 85, no. 5, p. 601-610. [FullText] Catalog No: 682
Huber-Sannwald, E., Pyke, D.A., Caldwell, M.M., 1996, Morphological plasticity following species-specific recognition and competition in two perennial grasses: American Journal of Botany, v. 83, no. 7, p. 919-931. [FullText] Catalog No: 684
Francis, M.G., Pyke, D.A., 1996, Crested wheatgrass-cheatgrass seedling competition in a mixed-density design: Journal of Range Management, v. 49, no. 5, p. 432-438. [FullText] Catalog No: 16

Background:
Former Assistant Center Director of FRESC 1996-1999.

Personal Interests:
Skiing, Cycling, Baseball, Softball, Gardening, & Beer Brewing,

Links:
Restoration and Ecology of Arid Lands (REAL) Lab

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