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  • A Spatial Assessment of Conservation Opportunities in the Willamette River Floodplain between Corvallis and Albany, Oregon

    Creator:
    Baker, Jeffrey M.
    Abstract:
    The Willamette River floodplain has been highly modified by urbanization, conversion of land to agriculture, construction of dams and revetments, and regulation of flow, all of which have reduced floodplain processes that provide valuable ecosystem services such as fish and wildlife habitat and flood storage. Efforts to protect and restore...
    Resource Type:
    Capstone Project
    Full Text:
    members of my graduate committee, Dr. Dawn Wright, and Dr. Daniel Edge. Thank you all. My employer

  • Challenges to Gray Wolf Recovery in Washington, Oregon, and Northern California

    Creator:
    Kriz, Matthew A.
    Abstract:
    Gray wolves (Canis lupus) are the most socially polarizing species listed under the Endangered Species Act. Wildlife management practices at local, state, and federal levels include lethal control to resolve stakeholder and wolf conflicts as a last resort. There is little experimental evidence that lethal control is effective in this...
    Resource Type:
    Capstone Project
    Full Text:
    : Nicole Duplaix Daniel W. Edge Joe Kerkvliet Gray wolves (Canis lupus) are the most socially

  • Information Criterion for Nonparametric Model-Assisted Survey Estimators

    Creator:
    James, Addison
    Abstract:
    Nonparametric model-assisted estimators have been proposed to improve estimates of finite population parameters. More efficient estimators are obtained when the parametric model is misspecified due to the flexibility of nonparametric models. In this dissertation, we derive information criteria to select appropriate auxiliary variables to use in an additive model-assisted method....
    Resource Type:
    Dissertation
    Full Text:
    , and flexibility in scheduling meetings. I would also like to thank Dr. Daniel Edge for serving as the

  • Estimation of Population Age Structure, Detection Probability, and Density of Red Tree Voles in Oregon

    Creator:
    Marks-Fife, Chad A.
    Abstract:
    Red tree voles (Arborimus longicaudus) are a unique species of Arvicoline rodent found in western Oregon and northwest California. Their preferred habitat is mature and old-growth coniferous forest dominated by Douglas-fir (Pseudotsuga menziesii). Tree voles are an important prey item for northern spotted owls and many other predators, but are...
    Resource Type:
    Masters Thesis
    Full Text:
    which I can never adequately thank him. I want to thank my committee members, Dan Edge and Bob Mason

  • Modeling Density Dependence in the Presence of Measurement Error

    Creator:
    Payton, Quinn
    Abstract:
    Density dependence is an ecological concept concerning the mechanisms of change in the size of a population. The inability to census ecological populations confounds approaches to identify and quantify the level of density dependence. Statistical tests which ignore the presence of measurement error tend to result in misspeci fied type...
    Resource Type:
    Dissertation

  • Beaver ecology on the west Copper River Delta, Alaska

    Creator:
    Cooper, Erin E.
    Abstract:
    Since the 1964 earthquake and geologic uplift, beavers (Castor canadensis) have expanded their historic range from the inland (outwash plain) Copper River Delta, Alaska to the once tidally influenced areas of the outer area (uplifted marsh). The uplift presents a unique opportunity to observe beaver expansion, habitat selection and influence...
    Resource Type:
    Masters Thesis
    Full Text:
    process. I also thank the members of my graduate committee, Alix Gitelman, Dan Edge and Robert Beschta

  • Inference about missing mechanisms in longitudinal studies with a refreshment sample

    Creator:
    Zheng, Jianfei
    Abstract:
    Missing data is one of the major methodological problems in longitudinal studies. It not only reduces the sample size, but also can result in biased estimation and inference. It is crucial to correctly understand the missing mechanism and appropriately incorporate it into the estimation and inference procedures. Traditional methods, such...
    Resource Type:
    Dissertation
    Full Text:
    appreciation to my committee members who made this Ph.D. dissertation possible. Dr. Dan Edge, Dr. Yuan Jiang

  • Reallocating resources, rebuilding community : the Klamath Basin agreements and the emergence of adaptive governance

    Creator:
    Chaffin, Brian C.
    Abstract:
    The concept of "adaptive governance" represents a spectrum of hybrid approaches to environmental governance employed to guide management of complex social-ecological systems under conditions of high uncertainty. While the concept of adaptive governance has benefited from over a decade of theoretical development, empirical examples of transitions towards adaptive governance are...
    Resource Type:
    Dissertation
    Full Text:
    professor, Hannah Gosnell, and my committee members Barb Cosens, Michael Campana, John Bliss, and Dan Edge

  • Breeding habitat of harlequin ducks in Prince William Sound, Alaska

    Creator:
    Crowley, David W.
    Abstract:
    Breeding habitat of Harlequin ducks (Histrionicus histrionicus) was studied in eastern Prince William Sound, Alaska, during 1991 - 1993. Streams in Prince William Sound were surveyed for Harlequin ducks and monitored with mist nets. Physical characteristics of 24 Harlequin breeding streams were compared to those of 24 streams not used...
    Resource Type:
    Masters Thesis
    Full Text:
    committee members Charles Meslow, William McComb, John Hayes and Daniel Edge for their review and comments

  • Golden Eagles in Denali National Park and Preserve : productivity and survival in relation to landscape characteristics of nesting territories

    Creator:
    McIntyre, Carol L.
    Abstract:
    Denali National Park and Preserve (Denali) contains one of the highest densities of nesting Golden Eagles (Aquila cluysaetos) in North America. Productivity of this migratory population varies both temporally and spatially. Regardless of prey abundance, more fledglings are consistently produced at some nesting territories than others. In many raptor studies,...
    Resource Type:
    Dissertation
    Full Text:
    Golden Eagle conservation. My graduate committee members, Robert Anthony, Daniel Edge, Steve Garman