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  • Response of needle-litter decomposition and soil nitrogen mineralization to logging-debris manipulation and competing vegetation control in western Oregon and Washington

    Creator:
    Meehan, Nathan Andrew
    Abstract:
    Growing societal demand for forest products is pressuring managers to increase productivity from a finite land area, and it is expected that increased supply will come mostly from expansion of intensively managed stands. The USDA Forest Service and numerous collaborators created the Long-Term Soil Productivity (LTSP) network of research sites...
    Resource Type:
    Masters Thesis
    Full Text:
    and Washington. Abstract approved: Stephen H. Schoenholtz Growing societal demand for

  • Mason’s Run brook trout (Salvelinus fontinalis): history, management challenges, and recommendations

    Creator:
    Russell, Joseph D., III
    Abstract:
    Brook trout (Salvelinus fontinalis) populations currently exist in less than half of their historic range in the state of New Jersey. The remaining populations are confined to the northwestern part of the state in the Highlands, Appalachian Ridge and Valley, and Piedmont physiographic provinces, with the exception of Mason's Run,...
    Resource Type:
    Capstone Project
    Full Text:
    southern  New  Jersey.   Regardless  of the reason  for low  genetic diversity in  the Mason

  • Life History of the Northern Rubber Boa (Charina bottae) in Oregon

    Creator:
    Leppin, Mark V.
    Abstract:
    The Northern Rubber Boa (Charina bottae) is a small, secretive boa native to the Pacific Northwest. Despite this being possibly the highest latitude boas and one of only two boas native to the continental U.S., it has received surprisingly little attention. Most of the research on the natural history of...
    Resource Type:
    Masters Thesis
    Full Text:
    statistics. Funding for this research was provided by three main sources that I am grateful for. First

  • Adolescent substance abuse treatment incorporating "Rites of Passage"

    Creator:
    Mason, Michael J.
    Abstract:
    This investigation assessed the effectiveness of an adolescent substance abuse treatment program that incorporated "Rites of Passage." Named Gender Based Treatment (GBT), the treatment program sought to address the adolescents' developmental needs through the use of rituals, myth and story telling, and rites of initiation. Employing quantitative and qualitative analysis,...
    Resource Type:
    Dissertation
    Full Text:
    of Passage" AN ABSTRACT OF THE THESIS OF Michael J. Mason for the degree of Doctor of Philosophy

  • Activation, modification and suppression of sex pheromone production in garter snakes

    Creator:
    Parker, M. Rockwell
    Abstract:
    Vertebrates communicate with one another and coordinate intraspecific reproduction by using a variety of sexually dimorphic signals, such as plumage, ornaments, sounds, and/or scents. These sexual dimorphisms are maintained by physiological factors, typically sex-specific hormones (though see Chapter 3 for an exception). The purpose of the research in this dissertation...
    Resource Type:
    Dissertation
    Full Text:
    . Rockwell Parker and Robert T. Mason Currently in press for publication in the

  • Reproductive biology and behavior of the brown tree snake (Boiga irregularis) on Guam.

    Creator:
    Waye, Heather L.
    Abstract:
    While there are many more species of reptiles in the tropics than in temperate latitudes, relatively little is known about the natural history of tropical species of snakes. Even basic information, such as reproductive ecology and behavior, is lacking. Patterns of reproduction in tropical species differ from patterns in temperate...
    Resource Type:
    Dissertation
    Full Text:
    , Robert T. Mason, for all of the support he has given me in this endeavor. I also greatly appreciate

  • Exploring the structural dynamics of human understanding : an historico-philosophical analysis of the problem of meaning in Heidegger and Bohr

    Creator:
    Tattersall, Mason
    Abstract:
    This dissertation explores the structural dynamics of human understanding and particularly the concept of meaning and its connections to concepts of ultimate ground, necessity and contingency, language, and perception. It focuses on the history of the concept of meaning in early twentieth-century European physics and philosophy, through an analysis of...
    Resource Type:
    Dissertation
    Full Text:
    ABSTRACT OF THE DISSERTATION OF Mason Tattersall for the degree of Doctor of Philosophy in History of

  • Tsunami-induced Soil Instability

    Creator:
    Fischer, Rachael Marie
    Abstract:
    Recent tsunami field surveys from the 2011 Great East Japan Earthquake and Tsunami have recorded numerous examples of tsunami-induced soil instability: significant scour around foundations, foundation failure of piles, and other damage caused by liquefaction. From the observations of soil instability leading to the failure of critical coastal structures, it...
    Resource Type:
    Masters Thesis
    Full Text:
    Mason (2014) was applied to account for the gradient of excess pore water pressure head that develops

  • Reproductive implications of parasitic infections and immune challenges in garter snakes

    Creator:
    Uhrig, Emily J.
    Abstract:
    Parasitic infections and immune challenges can affect host reproductive fitness and, ultimately, the evolution of host populations in a myriad of ways. The fitness implications of parasitic infections range from increased host mortality to subtle changes in reproductive investment. From alterations of behaviors, sexual signaling, and competitive ability to changes...
    Resource Type:
    Dissertation
    Full Text:
    for the results. M. L. Kent assisted with study design and R. T. Mason assisted with animal

  • Static and cyclic response of ecoroof soil

    Creator:
    Kraupa, Travis J.
    Abstract:
    Green technology in the United States has been on the rise over the past few decades in the United States. However, certain green technologies have been developed in the absence of design standards. Ecoroofs, which are vegetated soil masses placed on the top of a building’s roof structure, present several...
    Resource Type:
    Masters Thesis
    Full Text:
    provided the basis for the geotechnical characterization of ecoroof soil. Sample statistics of the