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Filtering by: Subject Nitrogen -- Fixation -- Oregon -- Oregon Coast Range Remove constraint Subject: Nitrogen -- Fixation -- Oregon -- Oregon Coast Range Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.) File Format application/pdf Remove constraint File Format: application/pdf

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Non-linear nitrogen dynamics and calcium depletion along a temperate forest soil nitrogen gradient

Creator:

Sinkhorn, Emily R.

Abstract:

Understanding how N availability influences base cation stores is critical for long-term ecosystem sustainability. Indices of nitrogen (N) availability and the distribution of nutrients in plant biomass, soil, and soil water were examined across ten young, unpolluted Douglas-fir (Pseudotsuga menziesii) stands in the Oregon Coast Range spanning a three-fold soil...

Resource Type:

Masters Thesis

Full Text:

Douglas-fir (Pseudotsuga menziesii) stands in the Oregon Coast Range spanning a three-fold soil N
Establishment and growth of natural and planted conifers ten years after overstory thinning and vegetation control in 50-year-old Douglas-fir stands

Creator:

Nabel, Mark R.

Abstract:

Forest managers of public lands in western Oregon and Washington have become increasingly interested in creating additional conifer cohorts in young, even-aged, second-growth Douglas-fir stands. The purpose of our research was to assess the establishment, survival, and growth of naturally-regenerated and underplanted conifers 10-13 years after overstory thinning and understory...

Resource Type:

Masters Thesis

Full Text:

the Oregon Coast Range were used in our study. One site was relatively dry (~130 cm of annual
Early Oligocene intrusions in the central Coast Range of Oregon : petrography, geochemistry, geochronology and implications for the Tertiary magmatic evolution of the Cascadia forearc

Creator:

Oxford, Jeremiah

Abstract:

The Early Oligocene Oregon Coast Range Intrusions (OCRI) consist of gabbroic rocks and lesser alkalic intrusive bodies that were emplaced in marine sedimentary units and volcanic sequences within a Tertiary Cascadia forearc basin. The alkalic intrusions include nepheline syenite, camptonite, and alkaline basalt. The gabbros occur as dikes and differentiated...

Resource Type:

Masters Thesis

Full Text:

: Early Oligocene Intrusions in the Central Coast Range of Oregon: Petrography, Geochemistry
Riparian litter inputs to streams in the central Oregon Coast Range

Creator:

Hart, Stephanie K.

Abstract:

Riparian zone vegetation can influence terrestrial and aquatic food webs through variations in the amounts, timing, and nutritional content of leaf and other litter inputs. Differences in vegetation composition and density, as well as riparian topography, may modulate the strength and quality of these inputs. Changes in inputs to small...

Resource Type:

Masters Thesis

Full Text:

. Title: Riparian Litter Inputs to Streams in the Central Oregon Coast Range. Abstract approved
Habitat use and densities of cavity-nesting birds in the Oregon Coast Range

Creator:

Nelson, S. Kim

Abstract:

I studied abundance patterns and habitat use of eight cavitynesting bird species in the Coast Ranges of Western Oregon during the spring and summer of 1985 and 1986. Three age classes of unmanaged Douglas-fir (Pseudotsuga menziesii) stands were selected for study: young (40-80 yrs), mature (80-200 yrs), and old-growth (>200...

Resource Type:

Masters Thesis

Full Text:

), southern Washington Cascades (Lundquist 1988), and central Oregon Coast Range (Mannan et al. 1980). While
Tree species-soils relationships in old-growth forests of the Oregon Coast Range

Creator:

Cross, Alison

Abstract:

Tree species directly and indirectly affect soil nutrient cycles. I sought to characterize soils and foliage associated with four common canopy tree species (Douglas-fir, western hemlock, western redcedar, and bigleaf maple) in mixed-species old-growth forests of the Oregon Coast Range and to determine whether and how soils differ among the...

Resource Type:

Masters Thesis

Full Text:

the Oregon Coast Range. Abstract approved
Riparian vegetation and larval Pacific Giant (Dicamptodon tenebrosus) and adult Western Redback (Plethodon vehiculum) salamanders in the Oregon Coast Range

Creator:

Graff, Paula (Paula Hayes)

Abstract:

Riparian areas in the Pacific Northwest provide important biotic and abiotic features, such as down wood, moist microsites, and abundant invertebrate prey that benefit aquatic and terrestrial amphibians. Reported high densities of amphibians from streams and riparian areas in the Pacific Northwest highlight their importance in riparian food webs. Amphibians...

Resource Type:

Masters Thesis

Full Text:

tenebrosus) and Adult Western Redback (Plethodon vehiculum) Salamanders in the Oregon Coast Range
Influences of clearcut logging on macroinvertebrates in perennial and intermittent headwaters of the Central Oregon Coast Range

Creator:

Banks, Janel

Abstract:

This research was designed to broaden the understanding of how timber-harvest affects aquatic macroinvertebrates in perennial and intermittent headwater streams. This study compared emergent and benthic macroinvertebrate assemblages from 20 headwater streams in the central Oregon Coast Range that varied by harvest condition and flow duration. Through comparison of the...

Resource Type:

Masters Thesis

Full Text:

Intermittent Headwaters of the Central Oregon Coast Range Abstract approved: Dr. Alan T
The spatial distribution of beaver (Castor canadensis) impoundments and effects on plant community structure in the lower Alsea drainage of the Oregon Coast Range

Creator:

Perkins, Thaïs Erbel

Abstract:

Stream systems in the Pacific Northwest have come to be understood in the absence of beaver (Castor canadensis). To understand the effect of beaver upon riparian plant communities, four basins in the lower Alsea drainage were examined to determine the effect of beaver and their impoundments on streamside herbaceous/shrub and...

Resource Type:

Masters Thesis

Full Text:

Drainage of the Oregon Coast Range. Abstract approved: David E. Hibbs Stream systems in the Pacific
Terrestrial amphibian distribution, habitat associations and downed wood temperature profiles in managed headwater forests with riparian buffers in the Oregon Coast Range

Creator:

Kluber, Matthew R.

Abstract:

Western forests have become increasingly fragmented landscapes dominated by young stands. Given that western Oregon forests largely consist of headwater systems, there is a need to better understand how headwater forest taxa and their habitats are impacted by forest management practices. Several amphibian species associated with forested headwater systems have...

Resource Type:

Masters Thesis

Full Text:

in Managed Headwater Forests with Riparian Buffers in the Oregon Coast Range Abstract approved

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Academic Affiliation

Forest Science7
Fisheries and Wildlife3
Forest Engineering1
Forest Resources1
Geosciences1

Advisor

Perakis, Steven S.3
Anthony, Robert G.1
Bailey, John D.1
Edge, W. Daniel1
Forsman, Eric D.1
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Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1989 to 2008

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Committee Member

Hibbs, David E.2
Li, Judith2
Adams, Darius M.1
Anderson, Kim1
Andrews, Gail Glick1
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Creator

Banks, Janel1
Cross, Alison1
Fleuret, Jennifer Marie1
Giesen, Thomas William1
Graff, Paula (Paula Hayes)1
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Date

Date range begin – Date range end

Current results range from 1988 to 2008

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2000-200913
1980-19891

Degree Field

Forest Science7
Wildlife Science3
Fisheries Science1
Forest Engineering1
Forest Resources1
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Degree Level

Master's14

Degree Name

Master of Science (M.S.)[remove]14

File Format

application/pdf[remove]14

Language

English [eng]14

License

All rights reserved11

Non-Academic Affiliation

Oregon State University. Graduate School14

Peer Reviewed

No11

Resource Type

Masters Thesis14

Rights Statement

In Copyright12
Copyright Not Evaluated2

Subject

Buffer zones (Ecosystem management) -- Coast Ranges2
Buffer zones (Ecosystem management) -- Oregon, Western2
Forest soils -- Coast Ranges2
Logging -- Environmental aspects -- Coast Ranges2
Riparian ecology -- Coast Ranges2
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