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Filtering by: Subject Insects -- Northwest, Pacific Remove constraint Subject: Insects -- Northwest, Pacific Advisor Gregory, Stanley V. Remove constraint Advisor: Gregory, Stanley V.

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  • Fall directions and breakage of riparian trees along streams in the Pacific Northwest

    Creator:
    Sobota, Daniel J.
    Abstract:
    In the Pacific Northwest, regulatory agencies have recently implemented management strategies for restoration and maintenance of wood recruitment to streams over time. This allochthonous organic material is a critical component in the geomorphic and biological structure of forested streams. Mathematical models are commonly used to evaluate long-term wood dynamics in...
    Resource Type:
    Masters Thesis
    Full Text:
    Directions and Breakaqe of Riparian Trees alonq Streams in the Pacific Northwest Stanley V. c rego In the

  • Coexistence of top predators in headwater streams : pathways of intraguild predation between Pacific Giant salamander larvae and cutthroat trout

    Creator:
    Rundio, David E.
    Abstract:
    The coexistence of multiple predators may have important consequences for the structure and function of communities. Interactions between predators may strongly affect their combined direct and indirect effects on prey populations and lower trophic levels. Predators often have size-structured populations, which may result in intraguild predation characterized by complex trophic...
    Resource Type:
    Masters Thesis
    Full Text:
    predation. In Pacific Northwest forested ecosystems, Pacific giant salamanders (Dicamptodon tenebrosus

  • A simulation model of wood dynamics in Pacific Northwest streams

    Creator:
    Meleason, Mark Alan
    Abstract:
    Conceptually, the dynamics of wood in streams can be viewed in terms of input and in-channel processes. Input processes are associated with both the riparian (tree fall, bank cutting, windthrow) and upslope forests (mass failures). In-channel processes include log breakage, movement, and decomposition. A mechanistic view of these processes is...
    Resource Type:
    Dissertation
    Full Text:
    Model of Wood Dynamics in Pacific Northwest Streams. Abstract Approved: Stanley V. Conceptually, the