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Filtering by: Advisor Levi, Taal R. Remove constraint Advisor: Levi, Taal R. Academic Affiliation Fisheries and Wildlife Remove constraint Academic Affiliation: Fisheries and Wildlife

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  • Spatial Ecology and Species Interactions among Predators and their Prey

    Creator:
    Ruprecht, Joel S.
    Abstract:
    Carnivores have disproportionate effects in ecological systems but understanding their exact influences on ecosystems is a matter of great complexity and debate. Predators directly impact prey by killing them, and indirectly by modifying their behavior in response to predation risk. Yet how species interact, both among members of a carnivore...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Taal Levi Carnivores have disproportionate effects in ecological systems but

  • Using DNA metabarcoding to describe biodiversity and disease dynamics

    Creator:
    Massey, Aimee L.
    Abstract:
    Land-use change, particularly in the form of the conversion of primary forest to forest-matrix systems, alters species communities and species interactions. Describing these often complex and nuanced species responses is one of the great challenges in ecology. Another complementary challenge is finding and using the most efficient means for collecting...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: ______________________________________________________ Taal Levi Land-use

  • Spatial and Temporal Dynamics of Eulachon (Thaleichthys pacificus) in Northern Southeast Alaska

    Creator:
    Pochardt, Meredith R.
    Abstract:
    In Southeast Alaska, Eulachon (Thaleichthys pacificus) are a culturally and biologically important anadromous fish. Eulachon populations have significantly declined in the southern part of their range, and in 2010 eulachon in northern California, Oregon, and Washington were listed as a threatened species under the Endangered Species Act. In the same...
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved: ________________________________ Taal Levi In Southeast Alaska, Eulachon

  • Distribution, habitat associations, and conservation status of Pacific fisher (Pekania pennanti) in Oregon.

    Creator:
    Barry, Brent R.
    Abstract:
    Fishers (Pekania pennanti) are medium sized mustelids endemic to North America. Two fisher populations persist in Oregon: an indigenous population in southwestern Oregon, and a reintroduced population in the southern Cascade Mountains. Despite candidacy for listing under the Endangered Species Act, current information on fisher populations in Oregon is scarce....
    Resource Type:
    Masters Thesis
    Full Text:
    Pacific fisher (Pekania pennanti) in Oregon Brent R. Barry, Katie Moriarty, and Taal Levi 8

  • Extensive Resource Subsidies by Salmon-Supported Bears to Granivores

    Creator:
    Shakeri, Yasaman N.
    Abstract:
    In salmon-rich, northern coastal environments brown bears can occur at high densities and exert wide-ranging effects on ecosystem processes. Bear consumption of seasonally available fruit may provide important seed dispersal services to plants, and by extension, influence the ecology of seed consumers such as small mammals. In this study, we...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Taal Levi In salmon-rich, northern coastal environments brown bears can occur at high

  • The Primacy of Mammals as Seed Dispersers and Predators in Salmon-Bearing Ecosystems

    Creator:
    Harrer, Laurie E. F.
    Abstract:
    Plants often encase seeds in a nutritional reward to incentivize seed dispersal by birds and mammals, but these seeds may also be removed and destroyed by seed predators. Although birds are typically thought to be the primary seed dispersers of berries in temperate systems, in southeast Alaska and other salmon-bearing...
    Resource Type:
    Masters Thesis
    Full Text:
    -Bearing Ecosystems Abstract approved: Taal Levi Plants often encase seeds in a nutritional

  • Bat Monitoring in North Coast and Cascades Network Summer 2019

    Creator:
    Barnett, Emily, Mock, Rayanne, Grigorov, Anastacia, Levorse, Alexis, and Chestnut, Tara
    Abstract:
    The detection of white-nose syndrome (WNS) in King County, WA in 2016 prompted the National Park Service to mobilize region-wide bat monitoring and disease surveillance. One of the goals of the Pacific West Region WNS response plan was to implement acoustic monitoring to determine the distribution of bat species and...
    Resource Type:
    Poster
    Full Text:
    project. We are grateful for the support of Jenny Urbina and Taal Levi for their work in the lab screening