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Filtering by: Creator Kanashiro, Elizabeth A. Remove constraint Creator: Kanashiro, Elizabeth A. Academic Affiliation Zoology Remove constraint Academic Affiliation: Zoology Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • The effects of community composition, landscape structure, and climate on host-pathogen interactions

    Creator:
    Moore, Sean M.
    Abstract:
    Like other species interactions in ecological systems, host-pathogen interactions are influenced by environmental factors, landscape characteristics and the broader community context. My thesis explores the potential influences of food-web interactions (Chapter 2), climate change (Chapter 3), landscape structure and host movement patterns (Chapter 4), and the combined influences of local...
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    in as my major professor after Elizabeth switched universities. Chris Mundt provided me with a

  • Ecological responses to riverine floods and flow alteration

    Creator:
    McMullen, Laura E.
    Abstract:
    Floods are major disturbance events for riverine ecosystems, directly and indirectly impacting organisms and their habitat. In this study I investigated the role of riverine floods and flow alteration in regulating aquatic macroinvertebrate population and community structure. I examined this problem using a variety of methods: a meta-analytic review of...
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    : . ________________________________________________ David A. Lytle Floods are major disturbance events for riverine ecosystems, directly and

  • The effects of an emerging pathogen on amphibian host behaviors and interactions

    Creator:
    Han, Barbara A.
    Abstract:
    Contemporary environmental change encompasses massive biodiversity loss and increasing numbers of emerging diseases worldwide. As part of a global biodiversity crisis, amphibians are disappearing at unprecedented rates. Batrachochytrium dendrobatidis is an emerging infectious pathogen prominently associated with many declines. Chapter 1 reviews the past decade of research on this system...
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    disease ecology. He is also a gifted teacher. Elizabeth Borer is a rare role model whom I respect

  • The role of herbivores and productivity on community structure of rocky shores of the Galapagos Islands, Ecuador

    Creator:
    Vinueza, Luis R.
    Abstract:
    Ecosystems are facing increasing threats from human related activities, such as overfishing, pollution, habitat destruction, species invasions, and diseases, among others. While oceanic islands provide natural laboratories to understand ecological and evolutionary process, they are also particularly vulnerable to these impacts, given their usual isolation from the mainland and the...
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    : __________________________________________________ Bruce A. Menge Ecosystems are facing increasing threats from human related activities

  • The role of oxygen and other environmental variables on survivorship, abundance, and community structure of invertebrate meroplankton of Oregon nearshore coastal waters

    Creator:
    Eerkes-Medrano, Dafne I.
    Abstract:
    The high productivity of Eastern Boundary Upwelling Ecosystems (EBUE), some of the most productive ecosystems in the globe, is attributed to the nutrient rich waters brought up through upwelling. Climate change scenarios for coastal upwelling systems, predict an intensification of coastal upwelling winds. Associated with intensification in upwelling are biogeochemical...
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    Dissertation
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    : Bruce A. Menge The high productivity of Eastern Boundary Upwelling Ecosystems (EBUE), some

  • Aquatic insect adaptations to different flow regimes

    Creator:
    Yamamuro, Asako Melody
    Abstract:
    My thesis explored the effects of environmental variability on population dynamics and community composition of aquatic insects. Environmental variability in the form of flow regime in streams can limit the distribution and life-history traits of aquatic insects. I used tributaries to the McKenzie River in Oregon with dramatically different flow...
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    : David A. Lytle My thesis explored the effects of environmental variability on population dynamics

  • The roles of nutrient dynamics, oceanography, and light in the structure and functioning of rocky intertidal macrophyte assemblages

    Creator:
    Close, Sarah L.
    Abstract:
    The influence of the physical environment on organisms has long been a subject of ecological research. But, the complex drivers of environmental variation, and the multiple scales at which this can occur, make studying this topic a difficult challenge. In rocky intertidal habitats, oceanographic- and climate-scale variability influence benthic communities...
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    : _____________________________________________________________________ Bruce A. Menge The influence of the physical environment on organisms has long been a

  • Algal community structure and organization in high intertidal rockpools

    Creator:
    van Tamelen, Peter G.
    Abstract:
    Gradients of physical disturbance are central to theories of community organization yet rarely are studies performed in which physical factors are experimentally manipulated. Pothole tidepool algal communities exhibit distinct zonation patterns from top to bottom that result from scouring by rocks and other debris in the pools. Scouring is easily...
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    Hiah Intertidal Rockpools Redacted for Privacy Abstract approved: Bruce A. Menge Professor of

  • Bridging environmental physiology and community ecology : temperature effects at the community level

    Creator:
    Iles, Alison C.
    Abstract:
    Most climate change predictions focus on the response of individual species to changing local conditions and ignore species interactions, largely due to the lack of a sound theoretical foundation for how interactions are expected to change with climate and how to incorporate them into climate change models. Much of the...
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    Effects at the Community Level Abstract approved: Bruce A. Menge Most climate

  • Linkages between mangrove forests and coral reefs : quantifying disturbance effects and energy flow between systems

    Creator:
    Granek, Elise F.
    Abstract:
    Interface habitats are considered valuable natural systems, tightly linked to adjacent habitats through the flow of matter and energy. However, there is limited research on mechanisms of connectivity such as movement of organisms and particulate matter and ways in which anthropogenic disturbance to interface habitats may affect immediate and adjacent...
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    interface habitats may affect immediate and adjacent ecosystems. Mangrove forests, a common interface