Index Catalog // ScholarsArchive@OSU

Native Bee and Spider Community Responses to Grassland Restoration and Wildfire

Creator:: Smith DiCarlo, Lauren A.
Abstract:: Up to 99.9% of native North American grasslands have been degraded since European settlement, primarily due to agricultural conversion. Today, grasslands are a top priority for restoration as they provide essential habitat for many rare and endangered species; however, the majority of studies in grasslands have focused on vegetation or...
Resource Type:: Dissertation
Full Text:: DiCarlo A DISSERTATION submitted to Oregon State University

Multiscale habitat electivity and movement patterns by adult spring chinook salmon in seven river basins of northeast Oregon

Creator:: Price, David M.
Abstract:: I examined habitat electivity and movement patterns of adult spring chinook salmon at microhabitat and channel unit spatial scales, and seasonal to annual temporal scales in seven streams in the Grande Ronde, John Day, and Imnaha basins. The objective was to compare habitat use and availability among streams, channel units,...
Resource Type:: Masters Thesis
Full Text:: Adult Spring Chinook Salmon in Seven River Basins of Northeast Oregon. by David M. Price A THESIS

Effect of ageing errors on estimates of growth, mortality and yield-per-recruit for the Chilean sardine (Sardinops sagax)

Creator:: Garland, David Ernest
Resource Type:: Masters Thesis
Full Text:: , MORTALITY AND YIELD-PER-RECRUIT FOR THE CHILEAN SARDINE (SARDINOPS SAGAX) by David E. Garland A THESIS

The importance of egg size for the diversity of salmonids

Creator:: Leblanc, Camille A.
Abstract:: Understanding the origin and nature of intra specific biodiversity enables us to better conserve and manage animal populations. Biological diversity is seen at different scales and for different traits such as behavior, morphology, physiology, and life history. Behavior is especially important since behavioral changes are believed to precede changes in...
Resource Type:: Dissertation
Full Text:: . Camille A. Leblanc, Skúli Skúlason, Sigurđur S. Snorrason and David L. G. Noakes Journal

Efficacy of sodium fluoroacetate in reducing ground squirrel damage to alfalfa

Creator:: Kalinowski, Stephan A.
Abstract:: Damage by Belding's ground squirrel (Spermophilus beldingi) to alfalfa (Medicago sativa) and the efficacies of various poisoning regimes to reduce damage were evaluated during March-July, 1976 and 1977. Regimes examined were designed to measure the effect of 3 variables on damage to alfalfa caused by squirrels including; timing of application,...
Resource Type:: Masters Thesis

Identification of optimal broodstock for Pacific Northwest oysters

Creator:: Stick, David A.
Abstract:: The United States Pacific Northwest is well known for its shellfish farming. Historically, commercial harvests were dominated by the native Olympia oyster, Ostrea lurida, but over-exploitation, habitat degradation, and competition and predation by non-native species has drastically depleted their densities and extirpated many local populations. As a result, shellfish aquaculture...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF David A. Stick for the degree of Doctor of Philosophy in Fisheries

Evaluating the Ecological Trade-Offs of Riparian Thinning for Stream Ecosystems in Second-Growth Redwood Forests of Northern California

Creator:: Roon, David A.
Abstract:: Riparian forests provide a myriad of ecosystem functions for adjacent streams and rivers, and due to these linkages, changes in riparian forest conditions can have direct implications for stream ecosystems. Resource managers in the coast redwood forests (Sequoia sempervirens) of northern California (USA) are actively thinning second-growth stands to accelerate...
Resource Type:: Dissertation
Full Text:: Forests of Northern California by David Alexander Roon A DISSERTATION submitted to

Effects of acute stress and tagging on the swimming performance and physiology of Pacific lampreys (Lampetra tridentata)

Creator:: Close, David A.
Abstract:: Pacific lampreys (Lampetra tridentata) have declined in abundance in the Columbia River Basin. Although, the reasons for the decline are unclear, we suggest that development of hydroelectric dams and habitat alterations in tributaries as the main causes. The available knowledge of life history of Pacific lampreys and status from dam...
Resource Type:: Masters Thesis
Full Text:: performance and physiology of Pacific lampreys (Lampetra tridentata) AN ABSTRACT OF THE THESIS OF David A

Some biological effects of the insecticide sevin on marine bivalves

Creator:: Armstrong, David A.
Abstract:: See pdf
Resource Type:: Masters Thesis

Growth, residence, and movement of juvenile Chinook salmon within restored and reference estuarine marsh channels in Salmon River, Oregon

Creator:: Hering, David K.
Abstract:: Tidal wetland channels provide rearing habitat for juvenile Chinook salmon as they emigrate from freshwater habitat and prepare to enter the ocean. Widespread diking and drainage of estuarine marshes for agricultural and urban development may have contributed to a decline in salmon abundance in the Pacific Northwest, prompting efforts to...
Resource Type:: Masters Thesis
Full Text:: by David K. Hering A THESIS submitted to Oregon State University in partial

ScholarsArchive@OSU

Native Bee and Spider Community Responses to Grassland Restoration and Wildfire

Multiscale habitat electivity and movement patterns by adult spring chinook salmon in seven river basins of northeast Oregon

Effect of ageing errors on estimates of growth, mortality and yield-per-recruit for the Chilean sardine (Sardinops sagax)

The importance of egg size for the diversity of salmonids

Efficacy of sodium fluoroacetate in reducing ground squirrel damage to alfalfa

Identification of optimal broodstock for Pacific Northwest oysters

Evaluating the Ecological Trade-Offs of Riparian Thinning for Stream Ecosystems in Second-Growth Redwood Forests of Northern California

Effects of acute stress and tagging on the swimming performance and physiology of Pacific lampreys (Lampetra tridentata)

Some biological effects of the insecticide sevin on marine bivalves

Growth, residence, and movement of juvenile Chinook salmon within restored and reference estuarine marsh channels in Salmon River, Oregon

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