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Atlantic Puffin (Fratercula arctica) Foraging Ecology During Marine Heatwave Conditions

Creator:: Kennerley, William L.
Abstract:: Marine heatwaves (“MHWs”) are discrete periods of anomalously warm ocean conditions that can lead to shifts in the distribution and abundance of marine organisms. Low-trophic level, pelagic forage species are frequently among those affected by MHWs, often resulting in considerable impacts upon their predators. In the North Atlantic Ocean, Atlantic...
Resource Type:: Masters Thesis
Full Text:: knowledge of puffin foraging ecology in the region is required. CLIMATE CHANGE AND THE RAPIDLY

The Breeding Ecology and Foraging Niche of Aleutian Terns (Onychoprion aleuticus) in the Kodiak Archipelago, Alaska

Creator:: Tengeres, Jill E.
Abstract:: The Aleutian tern (Onychoprion aleuticus) is a species of high conservation concern in Alaska due to large declines at known breeding locations since the 1960s. Due to the small population size and ephemeral behavior of this species on the nesting grounds, there is little basic biological information available and data...
Resource Type:: Masters Thesis
Full Text:: R. A. Moe. 1978. The breeding biology and feeding ecology of marine birds in the Sitkalidak Strait

Vegetation as Impacted by Soil Characteristics and Moisture in a Conservation Wetland, Willamette Valley, OR

Creator:: Aslan, Fevziye
Abstract:: Wetland degradation has negative influences on wetland functions and services. The understanding of wetland functions requires the intersection of two science disciplines, ecohydrology and plant physiology for a correct approach on wetland restoration and management. Although studies assessing ecohydrological relationships to protect wetlands are relatively common, studies evaluating both ecohydrological...
Resource Type:: Masters Thesis
Full Text:: for the degree of Master of Science in Rangeland Ecology and Management presented on June 12, 2020

Conservation biology of Plagiobothrys hirtus (Boraginaceae) : evaluation of life history and population enhancement

Creator:: Amsberry, Kelly
Abstract:: Plagiobothrys hirtus (Boraginaceae) is a state and federally listed endangered plant found only in Douglas County, Oregon. This vernal pool endemic has historically been threatened by agricultural conversion of seasonal wetlands in the Sutherlin area, and is currently being eradicated as habitat is lost due to the rapid urban development...
Resource Type:: Masters Thesis
Full Text:: conservation of Plagiobothrys hirtus, plants were produced in the greenhouse and transplanted into field sites

A hierarchical stream habitat classification system: development and demonstration

Creator:: Frissell, Christopher A.
Abstract:: Classification of Streams and stream habitats is useful for research involving establishment of monitoring stations, determining local impacts of land use practices, generalization from site-specific data, and assessment of basin-wide, cumulative impacts of human activities on streams and their biota. This thesis presents a framework for a hierarchical classification system,...
Resource Type:: Masters Thesis
Full Text:: assess changes in stream habitat caused by logging and debris removal in a fourth- order stream in the

The biology and ecology of Potentilla recta in the Blue Mountains of northeastern Oregon

Creator:: Tuitele-Lewis, Jamison
Abstract:: Two experiments were conducted on the invasive plant species Potentilla recta in northeastern Oregon to investigate both biological and ecological characteristics of the species. Growth analysis was conducted on the plant at three sites over a period of two years (2002 and 2003). Relative growth rate (RGR) was calculated for...
Resource Type:: Masters Thesis
Full Text:: Biology and Ecology of Potentilla recta in the Blue Mountains of Northeastern Oregon by Jamison

Determining the Influence of Nutrition and Temperature on the Growth and Development of Camassia spp.

Creator:: Davis, Matthew C.
Abstract:: As a key historic component of prairies in the Pacific Northwest, Camassia spp. should play a role in the restoration of these ecosystems. To do so effectively, further study of Camassia spp. propagation is warranted. Thus, the growth, N uptake and allocation, and seasonal thermoperiodicity of Camassia spp. was examined....
Resource Type:: Masters Thesis
Full Text:: reserves, nutrients, and moisture, and thus they allow the plant to persist year after year in the face

An Investigation into the Distribution, Residency Patterns, Population Connectivity, and Abundance of Blue Whales (Balaenoptera musculus) in New Zealand

Creator:: Barlow, Dawn R.
Abstract:: Species conservation depends on robust population assessment. Data on population abundance, distribution, and connectivity are critical for effective management, especially as baseline information for newly documented populations. I describe a pygmy blue whale (Balaenoptera musculus brevicauda) population in New Zealand waters with year-round presence that overlaps with industrial activities. This...
Resource Type:: Masters Thesis
Full Text:: greatly increase our knowledge of the biology, ecology, distribution and movement, habitat, and

Conservation of Rorippa columbiae : an evaluation of reintroduction potential through the study of germination ecology, propagation methods, and habitat requirements

Creator:: Kentnesse, Laura E.
Abstract:: Rare plant reintroductions are a critical conservation tool for the augmentation of diminishing populations, or re-establishment of extirpated populations. Analysis of reintroduction failures suggests that a sophisticated understanding of species biology, ecology, and habitat is essential for producing self-sustaining rare plant populations. This study sought to generate that background knowledge...
Resource Type:: Masters Thesis
Full Text:: conservation research outcomes, and in supporting my work. Enormous thanks goes to Sarah Malaby of the U.S

A study of the trends in the teaching of general biology in the high school

Creator:: Green, Bernice Harriet
Resource Type:: Masters Thesis
Full Text:: school biology. SCOPE AND LIYIT4TIONs OF THE STUDY In this study the trends in the teaching of

ScholarsArchive@OSU

Atlantic Puffin (Fratercula arctica) Foraging Ecology During Marine Heatwave Conditions

The Breeding Ecology and Foraging Niche of Aleutian Terns (Onychoprion aleuticus) in the Kodiak Archipelago, Alaska

Vegetation as Impacted by Soil Characteristics and Moisture in a Conservation Wetland, Willamette Valley, OR

Conservation biology of Plagiobothrys hirtus (Boraginaceae) : evaluation of life history and population enhancement

A hierarchical stream habitat classification system: development and demonstration

The biology and ecology of Potentilla recta in the Blue Mountains of northeastern Oregon

Determining the Influence of Nutrition and Temperature on the Growth and Development of Camassia spp.

An Investigation into the Distribution, Residency Patterns, Population Connectivity, and Abundance of Blue Whales (Balaenoptera musculus) in New Zealand

Conservation of Rorippa columbiae : an evaluation of reintroduction potential through the study of germination ecology, propagation methods, and habitat requirements

A study of the trends in the teaching of general biology in the high school

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