Index Catalog // ScholarsArchive@OSU

Creator:: Sims, Laura, Goheen, Ellen, Kanaskie, Alan, and Hansen, Everett
Abstract:: We gathered baseline data to assess alder tree damage in western Oregon riparian ecosystems. We sought to determine if Phytophthora-type cankers found in Europe or the pathogen Phytophthora alni subsp. alni, which represent a major threat to alder forests in the Pacific Northwest, were present in the study area. Damage...
Resource Type:: Article
Full Text:: . Northwest Science, 89(1), 34-46. doi:10.3955/046.089.0103 10.3955/046.089.0103 Northwest Scientific

Creator:: Wilk, Randall J., Harrington, Timothy B., Gitzen, Robert A., and Maguire, Chris C.
Abstract:: We evaluated the two-year effects of variable-retention harvest on chipmunk (Tamias spp.) abundance (Nˆ ) and habitat in mature coniferous forests in western Oregon and Washington because wildlife responses to density/pattern of retained trees remain largely unknown. In a randomized complete-block design, six treatments were applied to 13-ha units at...
Resource Type:: Article
Full Text:: Northwest Scientific Association Version of Record http://cdss.library.oregonstate.edu/sa-termsofuse

Creator:: Taylor, Sara M. and Santelmann, Mary V.
Abstract:: Most of the native wetland prairies once found in the Willamette Valley of Oregon, USA have been converted to agriculture, developed, or altered by disturbance and cessation of burning, especially in the northern portion of the valley. Mitigation efforts by Portland Metro and the NRCS have resulted in restoration of...
Resource Type:: Article
Full Text:: . Northwest Science, 88(4), 329-343. doi:10.3955/046.088.0407 10.3955/046.088.0407 Northwest Scientific

Creator:: Adkins, Jessica Y., Lyons, Donald E., Loschl, Peter J., Roby, Daniel D., Collis, Ken, Evans, Allen F., and Hostetter, Nathan J.
Abstract:: We investigated colony size, productivity, and limiting factors for five piscivorous waterbird species nesting at 18 locations on the Columbia Plateau (Washington) during 2004–2010 with emphasis on species with a history of salmonid (Oncorhynchus spp.) depredation. Numbers of nesting Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) were stable...
Resource Type:: Article
Full Text:: Northwest Scientific Association Version of Record http://cdss.library.oregonstate.edu/sa-termsofuse

Creator:: Russell, Michael
Abstract:: Seeds from 30 species of grasses and forbs native to Pacific Northwest prairies were tested for physical and physiological dormancy. The physical dormancy was determined by mechanically and chemically scarifying seeds. Physiological dormancy was evaluated with cold stratification before germination. Experiments were analyzed individually with ANOVA analysis, and by seed...
Resource Type:: Article
Full Text:: Northwest Scientific Association. All rights reserved. Michael Russell1, Department of Horticulture, 4017

Creator:: Gilligan, Laurie A. and Muir, Patricia S.
Abstract:: Although Oregon white oak (Quercus garryana) woodlands are a characteristic landscape component in southwestern Oregon, little is known about their current or historical stand structures. Meanwhile, fuel reduction thinning treatments that change stand structures in non-coniferous communities are ongoing and widespread on public lands in this region; some of these...
Resource Type:: Article

Creator:: Eskelson, Bianca N. I., Anderson, Paul D., and Temesgen, Hailemariam
Abstract:: Microclimate variables such as air temperature and relative humidity influence habitat conditions and ecological processes in riparian forests. The increased relative humidity levels within riparian areas are essential for many plant and wildlife species. Information about relative humidity patterns within riparian areas and adjacent uplands are necessary for the prescription...
Resource Type:: Article
Full Text:: Northwest Research Station, USDA Forest Service, Corvallis, Oregon 97331 and Hailemariam Temesgen

Creator:: Duren, Olivia C., Muir, Patricia S., and Hosten, Paul E.
Abstract:: Faced with landscapes degraded by fire suppression, logging, and grazing, land managers in the interior western US are attempting to restore habitat structure and function. In southwest Oregon, landscape-scale fuels treatments are being implemented with goals including recreating historic vegetation structure, despite poor understanding of the nature of the landscape...
Resource Type:: Article
Full Text:: 310 Northwest Science, Vol. 86, No. 4, 2012 Olivia C. Duren1

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