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Filtering by: Creator Anderson, Shannon Remove constraint Creator: Anderson, Shannon Advisor Anderson, N. H. Remove constraint Advisor: Anderson, N. H.

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  • The seasonal occurrence and distribution of stoneflies (Plecoptera) of a western Oregon stream

    Creator:
    Kerst, Cary Dean
    Abstract:
    Plecoptera were collected from four sampling stations selected to represent a range of conditions on Oak Creek, a small woodland stream originating in the foothills of the Oregon Coast Range. The elevation of Site I was 700 ft. while the lowest site was located at 225 ft. Monthly benthos samples...
    Resource Type:
    Masters Thesis
    Full Text:
    : Redacted for Privacy N. H. Anderson Plecoptera were collected from four sampling stations selected to

  • The ecology and production dynamics of four black fly species (Diptera:simuliidae) in western Oregon streams

    Creator:
    Speir, Jon A.
    Abstract:
    Ecological and production studies of Prosimulium caudatum Shewell, P. dicum Dyar and Shannon, Simulium arcticum Malloch and S. canadense Hearle (Diptera: Simuliidae) were made in 1971 and 1972 in three streams near Corvallis, Oregon. The purpose of the study was to characterize the biology and population dynamics of larvae, and...
    Resource Type:
    Dissertation
    Full Text:
    approved: I Redated for Privacyivacy N. H. Anderson Ecological and production studies of Prosimulium

  • The species composition and adaptations of insects in an intermittent stream in western Oregon

    Creator:
    Tew, Michael Peter
    Abstract:
    The insect fauna of a small second order intermittent stream near Corvallis, Benton County, Oregon was studied. The species composition was determined, attempts were made to monitor migration to the stream, qualitative and quantitative benthos samples were taken, emergence was sampled, the dry stream bed was examined for forms of...
    Resource Type:
    Masters Thesis
    Full Text:
    : Redacted for Privacy N. H. Anderson The insect fauna of a small second order intermittent stream near

  • Colonization patterns of stream benthos on artificial substrates in Taiwan

    Creator:
    Shieh, Sen-her
    Abstract:
    Experiments on the colonization of artificial substrates by stream benthos were conducted in upper Chingmei Stream, Taiwan. The artificial substrates were colonized by stream benthos for periods of 3, 6 12, 21, 30 and 42 days.The two experiments were designed for different purposes. Experiment I from December 15, 1990 to...
    Resource Type:
    Masters Thesis
    Full Text:
    Substrates in Taiwan Abstract approved: Redacted for Privacy N. H. Anderson Experiments on the colonization

  • Effects of stream restoration on macroinvertebrate communities in an Oregon Coast Range system

    Creator:
    Christensen, M. Jo
    Abstract:
    Stream-restoration projects are usually designed to improve habitat quality for fishes. These projects manipulate flow patterns, substrate distribution, and amount and placement of large woody debris. Consequently, they also affect the size and composition of the aquatic macroinvertebrate community. This research evaluates two types of fish habitat restoration: off-channel structures...
    Resource Type:
    Masters Thesis
    Full Text:
    Macroinvertebrate Communities in an Oregon Coast Range Stream. Abstract approved: N.H. Anderson Stream

  • Drift, wood, and grazing cattle : macroinvertebrates in managed streams

    Creator:
    Reed, T. L.
    Abstract:
    The importance of active-entry drift at a community-scale was evaluated by testing whether the placement of wood in streams affected the abundance of Baetis spp. mayflies in drift. Baetis were chosen because they use drift as a behavioral strategy and are important in salmonid diets. The density of woody debris...
    Resource Type:
    Masters Thesis
    Full Text:
    Managed Streams. Abstract approved: N. H. Anderson The importance of active-entry drift at a

  • Insect community composition and physico-chemical processes in summer-dry streams of Western Oregon

    Creator:
    Dieterich, Martin
    Abstract:
    Seven streams, one of them permanent, were studied in western Oregon, USA. The research was designed to assess the value of summer-dry headwaters for conservation oriented landscape management. Streams were categorized primarily according to exposure (forest versus meadow sites) and secondarily according to flow duration (ephemeral = short-flow versus temporary...
    Resource Type:
    Dissertation
    Full Text:
    approved: N. H. Anderson Seven streams, one of them permanent, were studied in western Oregon, USA. The