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Filtering by: Creator Wilson%2C James B. Remove constraint Creator: Wilson%2C James B. Committee Member Jones, Julia Remove constraint Committee Member: Jones, Julia

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  • Cooperation and Conflict Dynamics in Small-Scale Fisheries

    Creator:
    Villegas, Ciera A.
    Abstract:
    Small-scale fisheries account for at least 40 percent of global fisheries catch, 90 percent of the people employed along capture fisheries value chains operate in small-scale fisheries, and 45 million women participate in small-scale fisheries globally. The past few years have brought warnings from policymakers and resource managers about risks...
    Resource Type:
    Dissertation
    Full Text:
    : __________________________________ Michael J. Harte __________________________________ James R. Watson Small-scale

  • Blowout and spill occurrence model

    Creator:
    Sim, Lawrence H.
    Abstract:
    To assist with risk-assessment with deepwater and ultra-deepwater prospects for offshore energy extraction as well as provide a useful tool for oil spill response, a spatially-explicit model was developed for comprehensive simulations of a blowout event from the wellhead to final fate and degradation. The Blowout and Spill Occurrence Model...
    Resource Type:
    Masters Thesis
    Full Text:
    Spill Occurrence Model Abstract approved: James J. Graham To assist with

  • Tidal influence on downstream fining in gravel-bed rivers

    Creator:
    Coles, Derron Rafiq
    Abstract:
    This research examines the downstream fining phenomenon as it operates in coastal gravel-bed rivers of Oregon. Downstream fining is a change in bed composition toward smaller sediment sizes in the downstream direction. Changes in stream flow discharge and channel slope affect the rate of bed-load transport, thereby altering the downstream...
    Resource Type:
    Dissertation
    Full Text:
    the Tillamook Bay. From north to south, the rivers are the Miami, Kilchis, Wilson, Trask and

  • Assessing the Role of Snow Cover for Regenerating Forests over Post-wildfire Landscapes in the Pacific Northwest

    Creator:
    Wilson, Andy C.
    Abstract:
    Forested, mountain landscapes in the Pacific Northwest (PNW) are changing at an unprecedented rate, largely due to shifts in the regional climate regime. Documented climatic trends across the PNW include increasing wildfire frequency and intensity and an increasingly ephemeral snowpack, especially at moderate elevations. One relationship that has yet to...
    Resource Type:
    Masters Thesis
    Full Text:
    ABSTRACT OF THE THESIS OF Andy C. Wilson for the degree of Master of Science in Geography presented on

  • Evaluating the effectiveness of illuminated and shadowed contour lines

    Creator:
    Eynard, James D.
    Abstract:
    Illuminated contour lines, where line width and color are varied based on an angle of illumination, date back to the mid-nineteenth century, but their effectiveness compared to conventional contour lines has not been fully examined. Currently, illuminated contour lines are not widely used in computer-based cartography because they are not...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF James D. Eynard for

  • Developing a plan for the national coordination of geospatial technology education : a community college perspective

    Creator:
    Sullivan, Deidre E.
    Abstract:
    Geospatial technology is a rapidly growing and changing field. The term geospatial technology (GST) refers to geographical information systems (GIS), global positioning systems (GPS), and remote sensing (RS), all emerging technologies that assist the user in the collection, analysis, and interpretation of spatial data. The speed at which new fields...
    Resource Type:
    Capstone Project
    Full Text:
    (Gaudet et al., 2003; see Appendix B). The Geospatial Technology Competency Model attempts to identify

  • Factors Influencing Streamflow Generation Processes in Rain-dominated, Coastal Watersheds in Oregon

    Creator:
    Pazdral, Rosemary
    Abstract:
    Relative to other systems in the PNW, the rain-dominated, coastal watersheds of western Oregon have shallow aquifers. Given the seasonality of streamflow and storage limitations in coastal, rain-dominated watersheds, changes in the temporal patterns of precipitation have the potential to magnify the risk of extreme streamflow conditions during both high-...
    Resource Type:
    Dissertation
    Full Text:
    kind. Thank you to my committee: Dr. Lori Cramer, Dr. Julia Jones, Dr. James Molyneux, and Dr. Pamela

  • Grazer-resource Behavior, Interactions, and Feedbacks Control Kelp-forest Dynamics and Stability

    Creator:
    Randell, Zachary H.
    Abstract:
    How the direct and indirect effects of species interactions cascade to affect community structure, functioning, and stability is a fundamental question in ecology. In temperate kelp forests, species interactions, in conjunction with environmental processes, produce rich spatiotemporal dynamics. Arguably the most dramatic of these are abrupt shifts in community state,...
    Resource Type:
    Dissertation
    Full Text:
    establish a canopy are removed early and often by increased occurrences of fire (Wilson et al. 1992). Thus

  • Range-use estimation and encounter probability for juvenile Steller sea lions (Eumetopias jubatus) in the Prince William Sound-Kenai Fjords region of Alaska

    Creator:
    Meck, Stephen R.
    Abstract:
    Range, areas of concentrated activity, and dispersal characteristics for juvenile Steller sea lions Eumetopias jubatus in the endangered western population (west of 144° W in the Gulf of Alaska) are poorly understood. This study quantified space use by analyzing post-release telemetric tracking data from satellite transmitters externally attached to n...
    Resource Type:
    Masters Thesis
    Full Text:
    a kernel density analysis (b) shown on a 3-d gridded surface.…………..... 85 1.2 Exploratory plot

  • Interactive visualization of diversity in multivariate data sets unified across fields of study

    Creator:
    Pham, Tuan N. T.
    Abstract:
    The study of the diversity of multivariate objects shares common characteristics across disciplines, including ecology and organizational management. Nevertheless, experts in these two disciplines have adopted somewhat separate diversity concepts and analysis techniques, limiting the ability of potentially sharing and cross comparing these concerns. Moreover, while complex diversity data may...
    Resource Type:
    Dissertation
    Full Text:
    Carlos Jensen, and Professor James Coakley (GCR) for their encouragement and input. This dissertation