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Filtering by: Creator Webster, Jennifer M. Remove constraint Creator: Webster, Jennifer M. Academic Affiliation Fisheries and Wildlife Remove constraint Academic Affiliation: Fisheries and Wildlife

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  • Patterns in responses of an amphibian assemblage to wetland restoration

    Creator:
    Rowe, Jennifer C.
    Abstract:
    Wetland restoration success in attaining wildlife conservation goals can be confounded by the presence of multiple biological invaders. Wetland management activities typically target invasive plants, but bottom-up responses of higher trophic levels in novel communities are difficult to predict. We surveyed plant and amphibian assemblages at 26 sites enrolled in...
    Resource Type:
    Masters Thesis
    Full Text:
    ABSTRACT OF THE THESIS OF Jennifer C. Rowe for the degree of Master of Science in Wildlife Science

  • Greater sage-grouse movements and habitat use during winter in central Oregon

    Creator:
    Bruce, Jennifer R.
    Abstract:
    Greater sage-grouse (Centrocercus urophasianus), a sagebrush obligate species, has contracted in extent by nearly half its original distribution. This is primarily due to habitat loss and degradation over the past 150 years. During winter, sage-grouse depend completely on sagebrush habitat for food and cover, yet sage-grouse winter ecology has been...
    Resource Type:
    Masters Thesis
    Full Text:
    THE THESIS OF Jennifer R. Bruce for the degree of Master of Science in Wildlife Science

  • Husbandry stress of Zebrafish, Danio rerio

    Creator:
    Ramsay, Jennifer Mara
    Abstract:
    Zebrafish, Danio rerio, are widely used as vertebrate research organisms yet little is know about their responses to husbandry stressors. This dissertation examined the whole-body cortisol responses of zebrafish to husbandry stress. Additionally, the effects of stress on the susceptibility to mycobacteriosis and microsporidiosis (Pseudoloma neurophilia) were determined including effects...
    Resource Type:
    Dissertation
    Full Text:
    THE DISSERTATION OF Jennifer Mara Ramsay for the degree of Doctor of Philosophy in Fisheries

  • Using Spatial Capture-Recapture to Estimate Density of Roosevelt Elk in Western Oregon

    Creator:
    Nelson, Jennifer E.
    Abstract:
    Spatial capture-recapture (SCR) is employed for estimating abundance and density of species, particularly those that are cryptic or solitary, and evaluating how population density varies with habitat. However, it is uncertain whether estimates are biased when applied to species that aggregate, such as elk (Cervus canadensis). Wildlife managers in the...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Jennifer E. Nelson for

  • Evaluating space use and pesticide exposure risk for burrowing owls in an agricultural environment

    Creator:
    Gervais, Jennifer A.
    Abstract:
    Large burrowing owl (Aihene cunicularia) populations exist in areas of intensive agriculture in California, and pesticide exposure has been identified as a potential threat to population persistence. I evaluated breeding season use of agricultural fields by adult male owls using radio telemetry, and examined egg contaminant residues to estimate population-level...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Jennifer A. Gervais for the

  • Development and application of a resource selection model for pygmy rabbits

    Creator:
    Meisel, Jennifer K.
    Abstract:
    Pygmy rabbits (Brachylagus idahoensis) in Oregon and Washington are a sagebrush (Artemisia tridentata spp.) obligate species of concern because of declining populations and extirpation from much of their range. Efforts are underway to establish a captive bred population of the Columbia Basin pygmy rabbit in Washington state for reintroduction into...
    Resource Type:
    Masters Thesis
    Full Text:
    Jennifer K. Meisel for the degree of Master of Science in Wildlife Science presented on June 15, 2006

  • Hormonal and osmoregulatory aspects of smoltification in coho salmon, Oncorhynchus kisutch

    Creator:
    Specker, Jennifer Lee
    Abstract:
    Coho salmon smolts (Oncorhynchus kisutch) were transported at low and high densities. (12 and 120 g/L) for short and long periods (4 and 12 h). Because smolts can be transplanted directly to seawater, half of the fish in each treatment were transported to tanks containing seawater and half to tanks...
    Resource Type:
    Dissertation
    Full Text:
    Coho Salmon, Oncorhynchus kisutch AN ABSTRACT OF THE THESIS OF Jennifer Lee Specker for the degree

  • Integrative risk analysis of vector-borne disease

    Creator:
    Orme Zavaleta, Jennifer
    Abstract:
    In this dissertation I explore the application of two novel modeling techniques for improving risk analysis of vector-borne disease and discuss their potential use in integrating environmental risk assessment that guides environmental and public health decisions. Techniques for analyzing risk have been considered inadequate due to a lack of understanding...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Jennifer Orme Zavaleta for

  • Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

    Creator:
    Suzuki, Yasuko
    Abstract:
    Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) nest in large colonies on East Sand Island in the Columbia River estuary, the largest known colonies for the two species in the world. Both species of piscivorous colonial waterbirds have been identified as predators with a significant impact on the...
    Resource Type:
    Dissertation
    Full Text:
    AMERICA Yasuko Suzuki, Daniel D. Roby, Katie M. Dugger, Jennifer A. Gervais, Donald E. Lyons

  • Influence of wetland landscape structure of shorebirds wintering in an agricultural valley

    Creator:
    Taft, Oriane Williams
    Abstract:
    Understanding how wetland birds use habitat is pivotal to developing successful and beneficial conservation strategies. Although it has been an ardent topic in forest research for some time, how species interact with the spatial patterning of habitat across a landscape (i.e., landscape structure) has been more or less neglected in...
    Resource Type:
    Dissertation
    Full Text:
    Landscpe Structure on Shorebirds Wintering in an Agricultural Valley Abstract approved: Susan M. Haig