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Filtering by: Committee Member Gitelman, Alix I. Remove constraint Committee Member: Gitelman, Alix I.

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The Effects of Tank Structure and Egg Size on the Production of Wild Steelhead (Oncorhynchus mykiss) Surrogate Fish

Creator:

Self, Katharine E.

Abstract:

One of the biggest hurdles for a juvenile salmonid (Oncorhynchus mykiss) is migrating downstream from freshwater spawning grounds to the ocean. Juveniles from wild broodstock were reared from the South Santiam River for more than 1 year at the Oregon Hatchery Research Center (OHRC) in Alsea, OR. The fish were...

Resource Type:

Masters Thesis
Twenty-year changes in riparian bird communities of east-central Oregon

Creator:

Ellis, Michael S.

Abstract:

Over the last 50 years, riparian zones in the semi-arid West have gained recognition as disproportionately important habitats for both breeding bird communities and agricultural operations. Despite growing interest in exploring avian-habitat relationships in these systems to better inform land management, few studies have attempted to describe temporal changes in...

Resource Type:

Masters Thesis
Stock Synthesis Assessments of Spatially Structured Fish Populations with an Environmental Driver on Recruitment Distribution : A Simulation Study and Discussion

Creator:

Denson, LaTreese S.

Abstract:

Stock assessments use statistical models and empirical data to re-create the population dynamics of a stock in order to provide estimates of biomass and fishing mortality rates to inform fisheries management. Fish stocks are not uniformly distributed across spatial regions, but stock assessments typically ignore stock spatial structure, for the...

Resource Type:

Masters Thesis
Development and application of climate risk assessment methods for flood management systems – a study of flexibility, adaptive capacity, and robustness

Creator:

DiFrancesco, Kara N.

Abstract:

Discussions around adapting water management systems to climate change often express the need to increase the flexibility and adaptive capacity of current systems, and to implement robust strategies going forth. While these topics lie at the center of many climate change discussions, transforming adaptation recommendations into tangible tools and information...

Resource Type:

Dissertation
Aquatic community responses to drought disturbance: experimental manipulations of top predator extinctions and stream drying

Creator:

Boersma, Kate S.

Abstract:

Although it is generally assumed that the intensifying abiotic environment is the primary effect of drought on aquatic organisms, drought-induced top predator extinctions may be an important underlying mechanism. I used manipulative experiments to disentangle the impacts of drying and top predator extinctions on arid-land aquatic invertebrate communities. I then...

Resource Type:

Dissertation
Effects of atrazine on olfactory-mediated behaviors in Pacific lamprey (Entosphenus tridentatus)

Creator:

Smith, April G.

Abstract:

Pacific lamprey (Entosphenus tridentatus) are experiencing population declines throughout their range. Xenobiotics could be an important risk factor for lamprey populations. Our goal was to establish if common herbicides, as used in forest management, could affect reproductive fitness. We determined that atrazine was a likely compound of greatest concern to...

Resource Type:

Masters Thesis
Responses of foothill yellow-legged frog (Rana boylii) larvae to an introduced predator

Creator:

Paoletti, David J.

Abstract:

The consequences of species introductions into non-native habitats are a major cause of concern in the U.S. An introduced species may alter native habitats, cause economic damage, compete with natives for resources or prey on them. Of particular interest are the effects of predation by introduced fishes on native amphibians....

Resource Type:

Masters Thesis
Statistical enhancement of support vector machines

Creator:

Taylor, Aimee E.

Abstract:

Support Vector Machines (SVM) and Random Forests (RF) have consistently outperformed other machine learning algorithms on a variety of problems. SVM can be used for classification and regression on many types of data (e.g. nonlinear, high dimensional), but cannot handle missing or mixed data. This research implements a permutation-based variable...

Resource Type:

Dissertation
Evaluating the fatty acid signature technique for studies of diet composition inpiscivorous waterbirds

Creator:

Myers, Anne Mary

Abstract:

This research was designed to evaluate the Fatty Acid Signature (FAS) technique as a non-lethal alternative to more traditional, and sometimes destructive, methods of studying the diet composition of piscivorous birds. Specifically we tested the technique with Caspian terns (Hydroprogne caspia) which currently nest in large numbers in the Columbia...

Resource Type:

Masters Thesis
Remote sensing for monitoring regional carbon dynamics associated with land cover and land use change along the Mesoamerican Biological Corridor

Creator:

Hayes, Daniel J., 1974-

Abstract:

Human activities are causing profound changes to the global environment, yet the potential consequences of these changes on rising atmospheric carbon dioxide and climate change are not well understood. Improving our understanding of these processes requires an enhanced awareness of how global ecosystems are changing and how these changes affect...

Resource Type:

Dissertation

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Academic Affiliation

Fisheries and Wildlife5
Forest Science2
Food Science and Technology1
Science and Mathematics Education1
Statistics1
more Academic Affiliations »

Advisor

Arthur, Jeffrey L.1
Cohen, Warren B.1
Edge, W. Daniel1
Ganio, Lisa M.1
Gartner, Barbara L.1
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Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2006 to 2017

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Committee Member

Gitelman, Alix I.[remove]13
Arnold, Stevan1
Blaustein, Andrew R.1
Campana, Michael E.1
Dalton, Michael L.1
more Committee Members »

Creator

Boersma, Kate S.1
Denson, Latreese S.1
Difrancesco, Kara N.1
Dunham, Sonya M.1
Ellis, Michael S.1
more Creators »

Date

Date range begin – Date range end

Current results range from 2006 to 2017

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Decade

2010-20196
2000-20097

Degree Field

Fisheries Science2
Forest Science2
Wildlife Science2
Environmental Sciences1
Fisheries and Wildlife1
more Degree Fields »

Degree Level

Master's8
Doctoral5

Degree Name

Master of Science (M.S.)8
Doctor of Philosophy (Ph.D.)5

File Format

application/pdf5

Language

English [eng]13

License

All rights reserved11

Non-Academic Affiliation

Oregon State University. Graduate School13

Peer Reviewed

No12

Resource Type

Masters Thesis8
Dissertation5

Rights Statement

In Copyright12
Copyright Not Evaluated1

Subject

Agricultural pollution1
Amphibian declines -- Oregon, Western1
Atrazine -- Environmental aspects1
Beer -- Flavor and odor -- Analysis1
Bird communities -- Oregon, Eastern1
more Subjects »

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