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Filtering by: Creator Baker, Rick Remove constraint Creator: Baker, Rick Advisor Miller, Richard F. Remove constraint Advisor: Miller, Richard F.

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  • Western juniper encroachment into aspen communities in the Northwest Great Basin

    Creator:
    Wall, Travis G.
    Abstract:
    In the Northwest Great Basin, aspen (Populus tremuloides) communities uniquely contribute to the biodiversity of a semi-arid, sagebrush-dominated landscape. In this same region, western juniper (Juniperus occidentalis) is encroaching into aspen stands. This study determined the timing, extent, and some of the effects of this expansion. Aspen stands below 2,133...
    Resource Type:
    Masters Thesis
    Full Text:
    research and for providing use of facilities that furthered my education. My major professors, Dr. Rick

  • Understory competition for resources in Pinus ponderosa forests of northeastern Oregon

    Creator:
    Riegel, Gregg M.
    Abstract:
    The objective of this research was to determine which environmental resources, light, water, and nutrients, control understory plant production and composition in a Pinus ponderosa forest in northeastern Oregon. A split-plot experimental design, with three blocks, four treatments, and 44 plots, was established in the summer of 1985. Twenty plots...
    Resource Type:
    Dissertation
    Full Text:
    Burns during the winter and spring of 1989. Dr. Rick Miller, my major professor, mentor, and now a

  • Modeling sage-grouse habitat using a state-and-transition model

    Creator:
    Evers, Louisa
    Abstract:
    Habitat for wildlife species that depend on sagebrush ecosystems is of great management concern. Evaluating how management activities and climate change may affect the abundance of moderate and high-quality habitat necessitates the development of models that examine vegetation dynamics, but modeling tools for rangeland systems are limited. I developed state-and-transition...
    Resource Type:
    Dissertation
    Full Text:
    here to see this. CONTRIBUTION OF AUTHORS Dr. Rick Miller and Dr. Paul Doescher provided

  • Response of Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis) to defoliation of understory grasses and drought

    Creator:
    Purrington, Teal Mackenzie
    Abstract:
    Water potential, leaf conductance, growth, nitrogen content, and seedling survival of Wyoming Big Sagebrush (Artemisia tridentata ssp. wyomingensis) following defoliation of the herbaceous understory were assessed during two growing seasons. Precipitation was 107% and 63% of the long-term mean (283 mm) in 1989 and 1990, respectively, which presented an opportunity...
    Resource Type:
    Masters Thesis
    Full Text:
    Dr. Rick Miller, and co-major professor Dr. Paul Doescher, for their guidance, friendship