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  • Chemical signaling and pheromone evolution in plethodontid salamanders

    Creator:
    Palmer, Catherine Anne
    Abstract:
    My dissertation focuses on the evolutionary forces that have shaped the chemical signaling system of plethodontid salamanders. Pheromones mediate two phases of plethodontid reproduction: mate attraction prior to courtship and female persuasion during courtship. Substrate-borne chemical signals are believed to play an important role in mate attraction for these animals....
    Resource Type:
    Dissertation
    Full Text:
    also goes out to my committee members, Dede Olson, Andy Blaustein and Fred Obermiller, for tolerating

  • Plant and amphibian assemblages in zero-order basins in the Oregon Coast Range

    Creator:
    Sheridan, Chris D.
    Abstract:
    We have a poor understanding of the biotic communities in zero-order basins, drainages extending from ridgelines to the initiation of first-order streams. This study describes baseline plant and amphibian composition in unmanaged zero-order basins in the Oregon Coast Range. Specifically, I studied: i) the spatial distribution and diversity of species,...
    Resource Type:
    Masters Thesis
    Full Text:
    . Dr. Dede Olson acted as co-advisor, providing unlimited advice, support and editorial help

  • Relationships between forest-floor invertebrate distribution, movement, and microclimate under alternative riparian management practices

    Creator:
    Rykken, Jessica J.
    Abstract:
    Headwater streams and their riparian zones are a common, yet poorly understood, component of Pacific Northwest landscapes. I sought to describe the ecological significance of headwater stream riparian zones as habitat for forest-floor invertebrate communities, and to assess how alternative management strategies for riparian zones may impact these communities. I...
    Resource Type:
    Dissertation
    Full Text:
    ear, or her computer skills at a moment's notice. The rest of my committee, Paul Jepson, Dede Olson