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  • Habitat associations of woodpeckers at multiple scales in managed forests of the Southern Oregon Cascades

    Creator:
    Brett, Tiffany A.
    Abstract:
    I studied nest-site characteristics and habitat relationships for three species ofprimary cavity-nesting birds--hairy woodpecker (Picoides villosus), northern flicker (Colaptes auratus), and red-breasted sapsucker (Sphyrapicus ruber)-- over spatially heterogeneous landscapes in managed forests of the Southern Oregon Cascades during 1995 and 1996. The study was conducted on the Diamond Lake Ranger...
    Resource Type:
    Masters Thesis

  • Microhabitat associations and behavioral dynamics of co-occurring native Pacifastacus leniusculus and invasive Procambarus clarkii crayfish in Oregon's southern Willamette Valley

    Creator:
    Hanshew, Brett Alan
    Abstract:
    Biological invasions are the second largest threat to biodiversity following habitat loss, and studying invasions has been a focus of ecological the past two decades. Despite the intense research, many basic questions remain empirically unanswered, particularly in the realm of behavior. The purpose of this research was to explore the...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Brett Alan Hanshew for the

  • Elevational differences in UV-B response by the long-toed salamander (Ambystoma macrodactylum)

    Creator:
    Thurman, Lindsey L.
    Abstract:
    Global amphibian declines have been attributed to numerous and often synergistic causes, such as invasive species, pathogens, and ultraviolet-B (UV-B) radiation. The effects of these stressors are context dependent and can vary with location, species, and populations. As sensitivity to UV-B has shown inconsistencies across amphibian taxa, it can be...
    Resource Type:
    Masters Thesis
    Full Text:
    continued support and friendship. A very special thank you to my advisor, Dr. Tiffany Garcia, for her

  • Invasive bullfrog use of novel ephemeral habitats in the Pacific Northwest

    Creator:
    Cook, Megan Tetsuko
    Abstract:
    Invasive species are a major threat to global biodiversity. Understanding the mechanisms underlying successful invasions is imperative for developing effective management strategies. Plasticity in physiological, morphological, and behavioral traits could be an indicator of invasion potential in non-native species. The invasive American bullfrog (Lithobates catesbeianus) has recently been observed breeding...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Tiffany S. Garcia Invasive species are a major threat to global

  • Agricultural impacts on amphibian survival, growth, and distributions

    Creator:
    Baker, Nick J.
    Abstract:
    The potential impact of chemical contaminants and conservation practices on amphibians in agricultural landscapes is a key research topic globally. Amphibians represent a common group in many freshwater systems and are currently experiencing worldwide population declines. Global amphibian declines may be attributed to a number of causes, including habitat loss,...
    Resource Type:
    Masters Thesis
    Full Text:
    Distributions. Abstract approved: Tiffany Sacra Garcia The potential impact of chemical

  • Clean-up man for the methodist mission

    Creator:
    Carey, Charles Henry
    Abstract:
    Gerald W. Williams Collection: Paging irregular: [68]-104; [153]-185; [269]-433
    Resource Type:
    Book
    Full Text:
    -Up Man for the Methodist Mission QUARTERLY of th a ..-, a .. I C a rl nt.. Carey, Charles ljenry

  • More about Astorians

    Creator:
    Drumm, Stella M.
    Abstract:
    Address before the annual meeting of the members of the Oregon Historical Society, Portland, Oregon, October 28, 1923.
    Resource Type:
    Article
    Full Text:
    . Louis seven exhausted men returning from a journey of which more than 1500 miles was on foot. Included

  • Methylmercury Toxicity in Larval Dragonflies: Predator Avoidance Behavior

    Creator:
    Morgan, Bailey A.
    Abstract:
    Widespread mercury contamination threatens aquatic ecosystem functions due to its capacity to bioaccumulate, biomagnify, and induce toxicity in food webs. Methylmercury (MeHg), the organic form of mercury, bioaccumulates more efficiently and tends to be more toxic than the inorganic form. One important impact of mercury exposure is inhibition of effective...
    Resource Type:
    Presentation
    Full Text:
    me to be a part of it. I would also like to thank Dr. Tiffany Garcia, and everyone else at Garcia

  • Illustrative Document of the Colony Collapse Disorder

    Creator:
    Woods, Portia A.
    Abstract:
    The Colony Collapse Disorder (CCD) is an issue that is plaguing the globe, not only in the environment, but in the economy as well. Pollinators are essential to maintaining biodiversity and regulating livestock and human crop production. Yet, as time progresses, more pollinators are falling ill to agricultural chemicals, land...
    Resource Type:
    Honors College Thesis
    Full Text:
    Disorder by Portia A. Woods A THESIS submitted to Oregon

  • Transracial adoptees, identity, and belonging : my story in a children's book

    Creator:
    Fastelin, Carrington L.
    Abstract:
    Motivated by my own struggle to find identity and belonging as a transracial adoptee (TRA), I sought to fulfill two thesis purposes: 1) answer the question “How do transracial adoptees find and create identity and belonging in a contemporary United States culture and context?” and 2) establish a) a rationale...
    Resource Type:
    Honors College Thesis
    Full Text:
    :_____________________________________________________ Tiffany DeRuyter Motivated by my own struggle to find identity and belonging as a transracial