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Grazing relationships of elk, deer and cattle on seasonal rangelands in northeastern Oregon

Creator:: Sheehy, Dennis Patrick
Resource Type:: Dissertation

Nitrogen fluxes through microbial communities from Yaquina Bay (Oregon)

Creator:: Jamerlan, Saturnino Juan
Resource Type:: Masters Thesis
Full Text:: through Microbial Communities from Yaquina Bay (Oregon) Abstract approved: Patricia A. Wheeler The

Effect of polyphosphate on microbial characteristics of seafoods

Creator:: Petchsing, Urairatana
Abstract:: Effect of 6.0% polyphosphate treatment on microbial growth and composition of microbial flora of three representative seafoods were investigated. Polyphosphate treatment washed off microorganisms by 1 log in peeled shrimp (10⁷ to 10⁶ and 10⁶ to 10⁵) and cooked crab meat (10⁶ to 10⁵) and by 2 logs in red...
Resource Type:: Masters Thesis
Full Text:: 6.0% polyphosphate treatment on microbial growth and composition of microbial flora of three

The microbial stability of refrigerated intermediate moisture foods

Creator:: Li, Ken-yuon
Abstract:: The lag phase, the specific growth rate, the minimum a [subscript w] required for growth and the temperature characteristic of Fsendomonas fluorescens, Brochothrix thermosphacta, Salmonella typhlmurium, Streptococcus faecalis and, Staphylococcus aureus have been studied in liquid model media under controlled temperature and a [subscript w] conditions. The results show that...
Resource Type:: Dissertation
Full Text:: Microbial Stability of Refrigerated Intermediate Moisture Foods Abstract approved: T Ti-r .T t

Effects of current velocity, irradiance, and herbivory on algal assemblages in laboratory streams

Creator:: Steinman, Alan D.
Abstract:: Effects of current velocity, irradiance, and grazing on the biomass, taxonomic structure, physiognomy, and chemical composition of lotic algal assemblages were investigated. Four experiments, lasting 32 to 75 days, were conducted in laboratory streams to determine how these factors affect algal assemblages singly, and in concert with each other. Regardless...
Resource Type:: Dissertation
Full Text:: also introduced into algal classification and study. The study of algal ecology lagged behind that of

Ecology of aquatic habitats associated with stream margins

Creator:: Moore, Kelly M. S.
Abstract:: The morphology and ecological importance of habitats associated with the margin of third-order stream channels in the Oregon Cascades were studied in streams in three different riparian types: 450-year-old conifers, 40-year-old alder, and an open, herbaceous-dominated clearcut. Margins, backwaters, and side channels in streams create important habitat for fry of...
Resource Type:: Masters Thesis
Full Text:: Ecology of aquatic habitats associated with stream margins

Population and production ecology of Lipsothrix spp. (Diptera:Tipulidae)

Creator:: Dudley, Thomas L.
Abstract:: Craneflies of the genus Lipsothrix inhabit decomposing wood in streams. The life cycles and ecological relationships of L. nigrilinea (Doane) and L. fenderi Alexander were investigated to determine how they exploit and respond to the wood habitat and their role in degradation of woody debris in western Oregon. Surveys of...
Resource Type:: Masters Thesis
Full Text:: Population and production ecology of Lipsothrix spp

The ecology of lupines in Crater Lake National Park, Oregon

Creator:: Kerle, Elizabeth A.
Resource Type:: Masters Thesis
Full Text:: The ecology of lupines in Crater Lake National Park

The response of soils, streambanks and instream coliform bacteria levels to grazing management in a riparian area

Creator:: Bohn, Carolyn C.
Abstract:: This thesis describes a case study of the effects of five systems of grazing on watershed values in a deteriorated riparian area. Soil infiltration, bulk density and penetrability, streambank edge movement and coliform bacteria were monitored for seven years along a stream in the Blue Mountains of northeastern Oregon. For...
Resource Type:: Masters Thesis

Microbial changes and interactions in the rhizosphere of vesicular-arbuscular mycorrhizal plants

Creator:: Meyer, Julie (Julie Rae)
Abstract:: The influence of vesicular-arbuscular mycorrhizae (VAM) on populations of general taxonomic and functional groups of naturally-occurring rhizosphere bacteria and actinomycetes associated with roots of sweet corn (Zea mays var. rugosa) and subterranean clover (Trifolium subterraneum L.) was assayed using selective media. Sporangial production by Phytophthora cinnamomi was also used as...
Resource Type:: Masters Thesis
Full Text:: physiology and the presence of fungal mycelium in the rhizosphere can influence the microbial ecology of

ScholarsArchive@OSU

Grazing relationships of elk, deer and cattle on seasonal rangelands in northeastern Oregon

Nitrogen fluxes through microbial communities from Yaquina Bay (Oregon)

Effect of polyphosphate on microbial characteristics of seafoods

The microbial stability of refrigerated intermediate moisture foods

Effects of current velocity, irradiance, and herbivory on algal assemblages in laboratory streams

Ecology of aquatic habitats associated with stream margins

Population and production ecology of Lipsothrix spp. (Diptera:Tipulidae)

The ecology of lupines in Crater Lake National Park, Oregon

The response of soils, streambanks and instream coliform bacteria levels to grazing management in a riparian area

Microbial changes and interactions in the rhizosphere of vesicular-arbuscular mycorrhizal plants

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