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  • Candidate Causes, Consequences, and Estimation of Individual Diet Specialization

    Creator:
    Coblentz, Kyle E.
    Abstract:
    Diet variation among individuals within populations is widespread. Often diet differences among individuals are attributable to obvious differences among individuals such as age, sex, or morphology. However, growing evidence suggests that individual diet variation is also common among seemingly identical individuals within populations. This phenomenon has been termed individual diet...
    Resource Type:
    Dissertation
    Full Text:
    . APPROVED: Major Professor, representing Zoology Acting Chair of the Department of Integrative Biology

  • The biology of a shallow-water methane vent

    Creator:
    Juhl, Andrew R.
    Abstract:
    In September of 1989, the site of an active seafloor methane vent was confirmed approximately 20 km off the coast of Oregon in shelf waters 135 m deep. The location of the vent had been described to Oregon State University oceanographers by a local commercial fisherman. Preliminary observations in 1989...
    Resource Type:
    Masters Thesis
    Full Text:
    Master of Science in Oceanociraphy presented on November 8, 1991. Title: The Biology of a Shallow-Water

  • Population and community ecology of the red alga Rhodomela larix (Turner) C. Agardh, on the central Oregon coast

    Creator:
    D'Antonio, Carla Marie, 1956-
    Abstract:
    Aspects of the life history and ecology of the intertidal turf-forming alga Rhodomela larix (Turner) C. Agardh were examined over a two year period at several sites on the Oregon coast. Rhodomela occurred over a broad tidal range and exhibited different growth and morphology characteristics with respect to tidal height....
    Resource Type:
    Masters Thesis
    Full Text:
    State University Marine Science Center, and Dianne Rowe showed patience and an unhesitating willingness

  • Marine reserves in The Bahamas and Ecuador : a scientific and socioeconomic perspective

    Creator:
    Lamb, Robert W.
    Abstract:
    Marine reserves are known to directly replenish overfished species. However, the community-wide effects of reserves are less clear. I examined the community of coralreef fishes in a large, fully protected marine reserve in The Bahamas: the Exuma Cays Land and Sea Park. Visual-transect surveys provided estimates and comparisons of the...
    Resource Type:
    Honors College Thesis
    Full Text:
    . Lamb for the degree of Honors Baccalaureate of Science in Biology and Honors Baccalaureate of Arts in

  • 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:
    very unique period of time in marine biology, once not likely to repeat. I appreciate you taking the

  • The Influence of Prey Predictability on the Foraging Behavior and Movement of Intertidal Predators

    Creator:
    Hennessey, Shannon M.
    Abstract:
    Fluctuations and spatial heterogeneity of habitat and resources is thought to underlie niche variation in animal populations, with intraspecific differences serving to produce or maintain population-, community-, or ecosystem-level patterns. Individual diet variation, defined as individual variation in food resource use within a population that is consistent over time, is...
    Resource Type:
    Dissertation
    Full Text:
    DISSERTATION OF Shannon M. Hennessey for the degree of Doctor of Philosophy in Integrative Biology

  • Infectious diseases of the Felidae : parasite communities from miniature to massive

    Creator:
    Broughton, Heather M.
    Abstract:
    Direct anthropogenic stressors have caused drastic declines in wildlife populations over the past two centuries. In the face of these threats, spillover of infectious disease from domestic animals and livestock into wildlife, and novel interactions between parasites and pathogens within wildlife communities, have further suppressed already vulnerable populations. As management...
    Resource Type:
    Dissertation
    Full Text:
    Broughton for the degree of Doctor of Philosophy in Integrative Biology presented on July 3, 2017. Title

  • Spatial and temporal variations in respiration rates and hypoxia on the Oregon shelf

    Creator:
    Wolf, Megan J.
    Abstract:
    Inner shelf hypoxia has occurred along the Oregon coast between the latitudes 44ºN and 45ºN since 2002 with increasing duration and intensity, posing a threat to marine life. The objective of this research was to determine whether variation in respiration rate explains spatial and temporal variation in hypoxia. Dissolved oxygen...
    Resource Type:
    Honors College Thesis
    Full Text:
    . 13. Marine Conservation Biology Institute. [http://www.mcbi.org/shining_sea/ glossary.htm

  • Human Visitation in the Rocky Intertidal and its Effects on Abundance of Algal and Invertebrate Species

    Creator:
    Silbernagel, Justin J.
    Abstract:
    The rocky intertidal is a diverse ecosystem with a variety of species and ecological interactions. Many biotic and abiotic interactions act together to restrict the abundance and distribution of species. Anthropogenic effects can have an important impact on species abundance and distribution as well. This study looks at how human...
    Resource Type:
    Honors College Thesis
    Full Text:
    rocky shore communities. Journal of Experimental Marine Biology and Ecology, 177: 79-97. 13

  • The Predictability of Qualitative Food Web Dynamics in Response to Extinction and Invasion

    Creator:
    Rockow, David J.
    Abstract:
    Food webs are extraordinarily complex, containing myriad direct interactions and indirect effects. Determining how this network of interactions and effects influences a food web’s qualitative dynamics is a challenging task, especially because data on food web structure and individual interaction strengths is unknown in virtually all real-world ecosystems. The goal...
    Resource Type:
    Honors College Thesis
    Full Text:
    the requirements for the degree of Honors Baccalaureate of Science in Biology (Honors