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Filtering by: Contributor advisor sim Hagar, Joan C. Remove constraint Contributor advisor sim: Hagar, Joan C.

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An Observational Study of the Effects of Wildfire on Hermit and Varied Thrush Distribution in the Mt. Washington Wilderness Area

Creator:

Woodrich, Samuel T.

Abstract:

The hermit thrush (Catharus guttatus) and the varied thrush (Ixoreus naevius) are focal species for conservation of forested habitats in Oregon. Although habitat associations have been defined for both species, their response to changes in vegetation following wildfire has not been well studied. To help fill this information gap, I...

Resource Type:

Masters Thesis
Habitat Associations and Diet Composition of Western Purple Martins in Western Oregon

Creator:

Sherman, Lorelle M.

Abstract:

The western purple martin (Progne subis arboricola) is a species of conservation concern throughout the Pacific Northwest. In western Oregon, the purple martin nests in three major ecosystem types: inland open-water, coastal, and upland forest. The availability of suitable breeding habitat is a major limiting factor for western purple martin...

Resource Type:

Masters Thesis
Created Snag Dynamics and Influence on Cavity-nesting Bird Communities over 25 years in Western Oregon

Creator:

Barry, Amy Marie

Abstract:

Snags provide critical habitat for nearly one-third of wildlife species in forests of the Pacific Northwest, so historic declines in snags are thought to have had a strong impact on biodiversity. Resource managers often create snags to mitigate the scarcity of snags within managed forests, but information regarding the function...

Resource Type:

Masters Thesis
Interactive effects of silvicultural herbicides and cervid herbivory on early seral plant communities of the northern Oregon Coast Range

Creator:

Stokely, Thomas D.

Abstract:

Intensive forest management (IFM, dense conifer plantings and herbicide applications) may alter the characteristics of early seral plant communities that function as major habitat resources for a host of wildlife species, including cervid herbivores such as Cervus elaphus and Odocoileus hemionus. Such large herbivores can also substantially affect plant community...

Resource Type:

Masters Thesis
Post-breeding habitat selection by songbirds in the headwaters of the Trask River, northwestern Oregon

Creator:

Jenkins, Stephanie R.

Abstract:

Little is known on the importance of riparian areas to birds near small headwater streams in mesic forests. Progress towards understanding limiting factors that affect bird populations has been difficult because of lack of information beyond the breeding period. I compared bird assemblages between headwater riparian and upland areas throughout...

Resource Type:

Masters Thesis
Influences of salvage logging on forest birds after fire in the eastern Cascades, Oregon

Creator:

Cahall, Rebecca E.

Abstract:

Previous research examining the influences of post-fire salvage logging on abundances of birds has focused primarily on the response of cavity-nesting species. There is limited research in regard to the impact of salvage logging on a broader range of bird species. In addition, little is known about how different intensities...

Resource Type:

Masters Thesis

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Academic Affiliation

Forest Ecosystems and Society4
Forest Science1

Advisor

Hagar, Joan C.6
Betts, Matthew G.2
Hayes, John P.1
Rivers, James W.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2008 to 2022

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Committee Member

Hibbs, David E.2
Acker, Steve A.1
Anthony, Robert1
Betts, Matt1
Garcia, Tiffany1
more Committee Members »

Creator

Barry, Amy Marie1
Cahall, Rebecca E.1
Jenkins, Stephanie R.1
Sherman, Lorelle M.1
Stokely, Thomas D.1
more Creators »

Contributor

Bouranis, John A.1
Hagar, Joan C.1
Kovasi, Adrienne I.1
Levi, Taal1

Date

Date range begin – Date range end

Current results range from 2007 to 2022

View distribution

Decade

2020-20291
2010-20194
2000-20091

Degree Field

Forest Ecosystems and Society3
Forest Science2
Environmental Sciences1

Degree Level

Master's6

Degree Name

Master of Science (M.S.)6

File Format

application/pdf1

Language

English [eng]6

License

All rights reserved5
Attribution 4.0 (CC BY 4.0)1

Non-Academic Affiliation

Oregon State University. Graduate School4

Peer Reviewed

No5

Resource Type

Masters Thesis6

Rights Statement

In Copyright6

Subject

Cavity-nesting birds -- Effect of forest management on -- Oregon, Western1
Cavity-nesting birds -- Habitat -- Oregon, Western1
Cavity-nesting birds -- Oregon, Western1
Forest birds -- Effect of logging on -- Oregon -- Davis Lake (Deschutes County)1
Forest birds -- Habitat -- Oregon -- Davis Lake (Deschutes County)1
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