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Creator:: Oregon State University. Agricultural Experiment Station, Buchanan, Shepard C., Whittaker, James Kramer, 1949-, and Nelson, A. Gene
Abstract:: Published May 1980. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Oregon State University, Corvallis AUTHORS Shepard C. Buchanan, James K. Whittaker, and A. Gene

Creator:: Clark, Ava Milam, 1884-1976 and Munford, James Kenneth
Resource Type:: Book
Full Text:: editing the manuscript, Mrs. Clark had the assistance of a co-author, James Kenneth Munford, director of

Creator:: Reisner, Michael D., Grace, James B., Pyke, David A., and Doescher, Paul S.
Abstract:: 1. Ecosystem invasibility is determined by combinations of environmental variables, invader attributes, disturbance regimes, competitive abilities of resident species and evolutionary history between residents and disturbance regimes. Understanding the relative importance of each factor is critical to limiting future invasions and restoring ecosystems. 2. We investigated factors potentially controlling Bromus...
Resource Type:: Article
Full Text:: dominance of endangered sagebrush steppe ecosystems Michael D. Reisner1*,†, James B. Grace2, David A. Pyke3

Creator:: Smiley, Richard W., Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, and United States. Department of Agriculture
Abstract:: Nematodes are tiny but complex unsegmented roundworms that are anatomically differentiated for feeding, digestion, locomotion, and reproduction. These small animals make important contributions to organic matter decomposition and to the food chain. Some species, however, are parasitic to plants or animals. This publication provides a description and information on biology,...
Resource Type:: Technical Report
Full Text:: lines. Since 1949, the PNW program has published more than 600 titles, preventing duplication of effort

Creator:: Roundy, Bruce A., Young, Kert, Cline, Nathan, Hulet, April, Miller, Richard F., Tausch, Robin J., Chambers, Jeanne C., and Rau, Ben
Abstract:: Managers reduce piñon (Pinus spp.) and juniper (Juniperus spp.) trees that are encroaching on sagebrush (Artemisia spp.) communities to lower fuel loads and increase cover of desirable understory species. All plant species in these communities depend on soil water held at >-1.5 MPa matric potential in the upper 0.3 m...
Resource Type:: Article
Full Text:: more limited in the first 10 yr of growth than in later years (Krämer et al. 1996). Mechanically

Creator:: Schantz, Merilynn C., Monaco, Thomas A., Call, Christopher A., and Sheley, R. L.
Abstract:: Because invasive annual grasses can strongly influence soil resource availability and disturbance regimes to favor their own persistence, there is a great need to understand the interrelationships among invasive plant abundance, resource availability, and desirable species prominence. These interrelationships were studied in two salt desert sites where the local abundance...
Resource Type:: Article
Full Text:: and spatially (Stewart and Hull 1949; Evans and Young 1984). Efforts to reduce the abundance of downy

Creator:: Davies, Kirk W., Bates, Jonathan D., and Nafus, Aleta M.
Abstract:: Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis [Beetle & A. Young] S.L. Welsh) plant communities with degraded native herbaceous understories occupy vast expanses of the western United States. Restoring the native herbaceous understory in these communities is needed to provide higher-quality wildlife habitat, decrease the risk of exotic plant invasion,...
Resource Type:: Article
Full Text:: sagebrush plant communities (Stewart and Hull 1949; Young and Allen 1997; Davies et al. 2009b). However

Creator:: Hobbs, S. D. (Stephen D.), Helgerson, O. T., Southwest Oregon Forestry Intensified Research Program, and Oregon State University. Forest Research Laboratory
Resource Type:: Conference Proceeding
Full Text:: literature review. USDA For. Serv. Gen. Tech. rep. PNW -87. 72 p. Whittaker, R. H. 1960. Vegetation of the

Creator:: Oregon State University. Agricultural Experiment Station
Resource Type:: Technical Report
Full Text:: Suggestions for Future Research," James K. Whittaker, John R. Winter, Proceedings of the 1980 Annual Meeting

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