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Filtering by: Alternative title ssim Habitat improvement project no. 11 Remove constraint Alternative title ssim: Habitat improvement project no. 11 Committee Member McCune, Bruce Remove constraint Committee Member: McCune, Bruce Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.)

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Influence of landscape-scale variables on the age and growth of coastal cutthroat trout Oncorhynchus clarkii clarkii in headwater streams

Creator:

Rehe, William G., Jr.

Abstract:

This thesis provides the first general description of the natural variation in age structure, growth rates, and survival in headwater populations of coastal cutthroat trout Oncorhynchus clarkii clarkii from western Oregon, and a subsequent synthesis of these life-history characteristics across the range of the subspecies. Age, growth, and survival were...

Resource Type:

Masters Thesis

Full Text:

., length at age-1, mean length, and survival) to physical habitat variables. The model with January
Hidden dynamics : community ecology and costs of parasite infection in African buffalo (Syncerus caffer)

Creator:

Henrichs, Brian

Abstract:

Most wild animals are concurrently infected with multiple parasite species for most of their lives. These parasite species assemble into rich and diverse communities, with parasites using host tissues for growth and reproduction as well as evolving strategies to evade the host immune system. The net effect of these ecological...

Resource Type:

Masters Thesis

Full Text:

the degree of Master of Science in Zoology presented on March 11, 2014. Title: Hidden Dynamics
Performance of Willamette Valley native plants following herbicide exposure

Creator:

Blakeley-Smith, Matthew R.

Abstract:

Prairies were once the dominant vegetation type in Oregon's Willamette Valley. Land use conversion, fire suppression, succession, and invasive species have reduced Willamette Valley prairies to less than 1% of their historical area. The remnant prairies that persist today are small in size and are highly fragmented. Marginal strips of...

Resource Type:

Masters Thesis

Full Text:

habitat along roadsides and agricultural fields play an important role as refugia for native species and
Effects of variation in ecosystem carryover on biodiversity and community structure of forest floor bryophytes and understory vascular plants : a retrospective approach

Creator:

Traut, Bibit Halliday

Resource Type:

Masters Thesis

Full Text:

go to my major advisor, Patricia Muir. She was the initial idea generator of this project and
Relationships of green-tree retention following timber harvest to forest growth and species composition in the western Cascade Mountains

Creator:

Rose, Coulter R.

Abstract:

National Forest management in the Pacific Northwest is shifting from a focus on commodity production to ecosystem management, in which the health of the entire forest ecosystem is considered, rather than that of a few key species. Ecosystem management includes retention of some live trees following timber harvest (green-tree retention)...

Resource Type:

Masters Thesis

Full Text:

W. Curtis Johnson, for their time and help throughout this project. Dr. McCune conceived of using
Using a species-centered approach to examine patterns and drivers of avian species richness in the Rogue Basin, Oregon, A 'bird's eye view' : using a species-centered approach to examine patterns and drivers of avian species richness in the Rogue Basin, Oregon

Creator:

Halstead, Katherine E.

Abstract:

The combined effects of habitat loss, degradation, and fragmentation pose a serious threat to Earth's biodiversity, imperiling even relatively common species. 'Habitat' is necessarily a species-specific concept, and investigations of bird diversity relationships and subsequent efforts to prioritize conservation areas, are challenged by the difficulty of estimating complex habitat gradients...

Resource Type:

Masters Thesis

Full Text:

necessarily focused on direct protection or improvement of habitat at the local scale, these are not likely
Pendent Usnea (Lichens; Ascomycetes; Parmeliaceae) in Western Oregon : taxonomy; morphological characters; and geographical distribution

Creator:

Pittam, Sherry K.

Abstract:

Pendent Usnea species were collected in western Oregon and examined. Character states, such as cortex-medulla-axis ratio; fibril length; papilla diameter; branching patterns; and presence or absence of fibrils, papillae, soredia, isidia; plus chemistry, were recorded and analyzed by inspection for differences. Historical names were researched in the literature. A comparison...

Resource Type:

Masters Thesis

Full Text:

with overlays of information from this project, using their computer program Map Expert. My thanks to
The Role of Intraspecific Functional Trait Variation in the Differential Decline of Meadow Species Following Conifer Encroachment

Creator:

Celis, Jessica

Abstract:

In the Oregon Cascade Range, conifer encroachment has reduced the extent of mountain meadows by as much as 50% since the mid-1940s. Although encroachment results in a general decline of meadow species abundance and diversity, species differ in their sensitivities to encroachment: some show rapid declines whereas others persist in...

Resource Type:

Masters Thesis

Full Text:

complete this project and accomplish a major goal in my life. First, I would like to thank my major
The species composition, density, and distribution of the littoral zooplankton assemblage in Crater Lake, Oregon

Creator:

Warncke, William Madara

Abstract:

The species compositions and densities of the littoral and pelagic zooplankton assemblages in Crater Lake were compared. The littoral and pelagic zooplankton assemblages of most lakes are typically different due to different habitat conditions in the two zones. The littoral zone of Crater Lake lacks many of the habitat characteristics,...

Resource Type:

Masters Thesis

Full Text:

zooplankton assemblages of most lakes are typically different due to different habitat conditions in the two
Ecological implications of trout introductions to lakes of the Selway Bitterroot Wilderness, Idaho

Creator:

Bahls, Peter F.

Abstract:

The widespread introduction of trout to naturally fishless mountain lakes in the western United States has been accompanied by little research. The ecological role of trout populations occurring in 91 lakes of the central Selway Bitterroot Wilderness, Idaho, was examined with respect to 1) the sampling variability of biological and...

Resource Type:

Masters Thesis

Full Text:

Bellpoint lake (no fish present) 48 11. Number and percent of 36 lakes without fish and 55 lakes with

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Academic Affiliation

Botany and Plant Pathology7
Fisheries and Wildlife4
Forest Ecosystems and Society3
General Science2
Animal and Rangeland Sciences1
more Academic Affiliations »

Advisor

Muir, Patricia S.3
Betts, Matthew G.2
Larson, Gary L.2
Borman, Michael M.1
Busby, Posy E.1
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Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1991 to 2021

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Committee Member

McCune, Bruce[remove]20
Jones, Julia2
Acker, Steve1
Alexander, John1
Blaustein, Andrew1
more Committee Members »

Creator

Averett, Joshua P.1
Bahls, Peter F.1
Blakeley Smith, Matthew R.1
Calvero, Silvino B.1
Celis, Jessica1
more Creators »

Date

Date range begin – Date range end

Current results range from 1990 to 2021

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Decade

2020-20291
2010-20198
2000-20094
1990-19997

Degree Field

Botany and Plant Pathology7
Fisheries Science3
General Science3
Forest Ecosystems and Society2
Forest Science1
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Degree Level

Master's20

Degree Name

Master of Science (M.S.)[remove]20

File Format

application/pdf1

Language

English [eng]20

License

All rights reserved13

Non-Academic Affiliation

Oregon State University. Graduate School17

Peer Reviewed

No19

Resource Type

Masters Thesis20

Rights Statement

In Copyright13
Copyright Not Evaluated7

Subject

African buffalo -- Parasites -- Ecology -- South Africa -- Kruger National Park1
African buffalo -- Parasites -- South Africa -- Kruger National Park1
Ascomycetes -- Oregon -- Classification1
Atmospheric carbon dioxide -- Oregon -- Metolius River Watershed1
Bird populations -- Alaska -- Prince William Sound1
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