Index Catalog // ScholarsArchive@OSU

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

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

The conversion of allochthonous material by stream detritivores

Creator:: Grafius, Edward John
Abstract:: The role of detritivores in the conversion of allochthonous leaf material in two small streams in the Cascade Range of Oregon was studied. Their importance in relation to other consumers was estimated from emergence and benthic standing crop data. Ingestion rates and efficiencies of utilization of bigleaf maple (Acer macrophyllum)...
Resource Type:: Masters Thesis

Effects of controlled flow reductions on the insect community of an Oregon coastal stream

Creator:: Hafele, Richard E.
Abstract:: Controlled flow reductions of 75% apportioned over four two-week intervals were studied during the summers of 1975 and 1976 on the North Fork of Elk Creek, an Oregon coastal stream. The effects of reduced flows on invertebrate drift, insect benthos, and the available food for juvenile salmonids were measured. Invertebrate...
Resource Type:: Masters Thesis

Life history studies of Cinygma integrum Eaton (Ephemeroptera : Heptageniidae) and other mayflies associated with wood substrates in Oregon streams

Creator:: Pereira, Christine Rosabelle Dolores
Abstract:: Wood debris serves an important substrate for macroinvertebrates in streams. Particle size reduction due to feeding and other activities can be an important role of the fauna in wood degradation. In this study the Ephemeroptera associated with wood were investigated, with the objective of assessing their impact in the degradation...
Resource Type:: Masters Thesis

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

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

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

Effect of diet on larval development, adult emergence and fecundity of the cinnabar moth, Tyria jacobaeae (L.) (Lepidoptera:Arctiidae)

Creator:: Rose, Sharon Diane
Resource Type:: Masters Thesis

Systematics of the genus Rhyacophila (Trichoptera:Rhyacophilidae) in western North America with special reference to the immature stages

Creator:: Wold, Janet Lee
Abstract:: Rhyacophila is one of the largest genera of caddisflies, containing about 465 species. Approximately 100 species are found in North America with 83 occurring in the west, The larvae of 24 western North American species are associated for the first time, making a total of 38 species for which larvae...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

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

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

The conversion of allochthonous material by stream detritivores

Effects of controlled flow reductions on the insect community of an Oregon coastal stream

Life history studies of Cinygma integrum Eaton (Ephemeroptera : Heptageniidae) and other mayflies associated with wood substrates in Oregon streams

Colonization patterns of stream benthos on artificial substrates in Taiwan

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

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

Effect of diet on larval development, adult emergence and fecundity of the cinnabar moth, Tyria jacobaeae (L.) (Lepidoptera:Arctiidae)

Systematics of the genus Rhyacophila (Trichoptera:Rhyacophilidae) in western North America with special reference to the immature stages

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