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Filtering by: Alternative title ssim Inventory of potential natural areas on state lands : part 1 Remove constraint Alternative title ssim: Inventory of potential natural areas on state lands : part 1 Location Willamette Valley, Oregon, United States, (Hypsographic) Remove constraint Location: Willamette Valley, Oregon, United States, (Hypsographic) Language English [eng] Remove constraint Language: English [eng]

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  • White-breasted nuthatch density and nesting ecology in oak woodlands of the Willamette Valley, Oregon

    Creator:
    Viste-Sparkman, Karen
    Abstract:
    Habitat loss causes a reduction in available resources for wildlife, alters the configuration of remaining habitat, and may isolate wildlife populations. White-breasted nuthatches (Sitta carolinensis) are experiencing long-term population declines in the Willamette Valley of Oregon, where they are historically associated with oak woodlands. As secondary cavity-nesters, white-breasted nuthatches may...
    Resource Type:
    Masters Thesis
    Full Text:
    , and basal area of oaks than random locations within the home range. Nest success in natural

  • Choices for the future: The Willamette Valley

    Creator:
    The Willamette Valley Livability Forum
    Abstract:
    Prepared for by the Willamette Valley Livability Forum. May 1999.
    Resource Type:
    Technical Report
    Full Text:
    River (Harrisburg Area) List of Appendices Survey on Growth Issues and Future Livability The

  • The Willamette Valley choices for the future

    Creator:
    Lawrence Halprin & Associates
    Abstract:
    This book is an environmental primer for the people of the Willamette Valley. It sets forth basic principles showing how men's actions cause future consequences in the environment.
    Resource Type:
    Book
    Full Text:
    /clutter/leapfrogging on farmland and open space . .Latge areas of land consumed by roads, parking

  • Historical Change and the Hydrogeomorphic Context of Present-day Floodplain Forests in the Willamette Valley, Oregon

    Creator:
    Bervid, Heather D.
    Abstract:
    Floodplain forests play many important roles in the fluvial processes and environments of large alluvial rivers, including acting as geomorphological influences and habitat for native fish during high flows. Many large, gravel-bed river systems have undergone substantial change in recent centuries, resulting in loss of forested area to agriculture, reduction...
    Resource Type:
    Masters Thesis
    Full Text:
    State Natural Area and Harkens Lake are partially inundated on lower floodplain surfaces. The 1996

  • Subsistence variability in the Willamette Valley

    Creator:
    Havercroft, Francine M.
    Abstract:
    During the summer of 1981, Oregon State University archaeologically tested three prehistoric sites on the William L. Finley National Wildlife Refuge. Among the sites tested were typical Willamette Valley floodplain and adjacent upland sites. Most settlement-subsistence pattern models proposed for the Willamette Valley have been generated with data from the...
    Resource Type:
    Masters Thesis
    Full Text:
    summer of 1981, Oregon State University archaeologically tested three prehistoric sites on the William

  • Landscape Genomics and Climatic Responses of Willamette Valley Alders

    Creator:
    Kral, George L.
    Abstract:
    The climate of the Pacific Northwest is in flux, and existing forest ecosystems are stressed and poised to shift in fundamental ways, with or without human intervention. This dissertation probes the nature of forest responses to environmental change through investigations of morphology and genetics of three species of alder co-occurring...
    Resource Type:
    Dissertation
    Full Text:
    part due to the effects of these interactions on species boundaries and evolution. Strong selection