Galápagos marine iguana population sizes have been declining since first contact with humans.This decline has historically been attributed mainly to predation by invasive species, but additional human-caused threats exist today. My thesis conducts an analysis of the present threats to the species and determines which are the most severe.Modern threats...
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Analysis of threats to Galápagos Marine Iguanas (Amblyrhynchus cristatus)
by
Sarah Elizabeth Spangler
Lack of growing season precipitation and the temperate climate in north central Oregon
pose challenges to growing spring wheat crops. Phosphate and sulfate fertilization can
improve early growth of spring wheat in this region and soil testing aids in determining
rates of fertilization. In this study, anion exchange membranes (AEM)...
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AN ABSTRACT OF THE THESIS OF
Andrea Elizabeth Redman for the
The thesis is a structural and petrographic study of approximately
23 square miles in the Millican SE quadrangle, Deschutes
County, Oregon. The area lies along the Brothers fault zone.
Bedrock in the area is of Pliocene to Recent age and consists
of an older basaltic unit with an associated dacite,...
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Elizabeth Ruth Tucker for the degree of Master of Science
in Geology presented on August 14, 1975
Title
ABSTRACT
Wetlands are considered critically important in the delivery of ecosystem services such as water quality improvement, flood protection, and conservation of native biodiversity. A common measure of the effectiveness of these ecosystem services is denitrification, an anaerobic microbial process that converts nitrate (NO3-), a common water pollutant, into dinitrogen...
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Valley
By
Elizabeth A. Leondar
An Undergraduate Thesis Submitted to Oregon State University
Using a quasi-experimental design, 118 Latina girls, ages 13-18, viewed five color photographs of White women. Girls viewed either images of sexualized women or images of non-sexualized women. After viewing the images, girls were asked to complete the sentence stem, “I am…” 20 times. Thirty percent of girls spontaneously described...
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2013
Deborah Schooler
Gallaudet University, Washington DC, United States
Elizabeth
This toolkit is part of a larger project to employ innovative Extension techniques and technologies to engage a fast-growing yet traditionally underserved and socially disadvantaged segment of forest owners in the United States. This project is designed to engage women woodland owners with an empowering, peer-learning approach. The toolkit focuses...
This toolkit is part of a larger project to employ innovative Extension techniques and technologies to engage a fast-growing yet traditionally underserved and socially disadvantaged segment of forest owners in the United States. This project is designed to engage women woodland owners with an empowering, peer-learning approach. The toolkit focuses...
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Highlands Conservancy; Eli Sagor, University of Minnesota;
Nicole Strong, Oregon State University; and
We used reverse time capture-mark-recapture models to describe associations between rate of population change (λ) and climate for northern spotted owls (Strix occidentalis caurina) at six long-term study areas in Washington and Oregon, USA. Populations in three of six areas showed strong evidence of declining populations, while populations in two...
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the Pacific 1
Northwest 2
Elizabeth M. Glenn1,4
1 Department of Fisheries and Wildlife, Oregon