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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 Field Botany and Plant Pathology Remove constraint Degree Field: Botany and Plant Pathology

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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
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
Scratching the Surface of the Potato Geocaulosphere: Characterizing the Microbiome of Seed Tuber Tare Soil and its Impact on the Rhizosphere Microbiome

Creator:

Delventhal, Kayla D.

Abstract:

For tuberizing crops like potato (Solanum tuberosum), the geocaulosphere, or the zone of soil in contact with and influenced by the tuber, is a distinct sphere of microbial life and represents an important interface between the potato crop and the soil environment. Upon potato harvest, specific geocaulosphere soil called tare...

Resource Type:

Masters Thesis

Full Text:

influence the rhizosphere microbiome, which is widely recognized as an important microbial habitat
The fate of organic and inorganic nitrogen inputs in an old-growth forest of the central Oregon Cascade Range

Creator:

Holub, Scott M.

Abstract:

Forests in the Pacific Northwest receive very little nitrogen through atmospheric deposition and thus studying the nitrogen cycle in this region can provide insights into how the unpolluted nitrogen cycle functions. I examined the fate of organic nitrogen versus inorganic nitrogen and the effect of tamlins on N retention by...

Resource Type:

Dissertation

Full Text:

project I ran several simple models to explore the effects that addedN could have on carbon sequestration
Chaparral history, dynamics, and response to disturbance in southwest Oregon : insights from age structure

Creator:

Duren, Olivia

Abstract:

Fuels management on Bureau of Land Management lands in SW Oregon, USA, is motivated by the needs to reduce fire hazard and restore ecosystems thought to be impacted by fire suppression. Chaparral is one of the most characteristic vegetation communities of SW Oregon's interior valleys, and extensive acreages within this...

Resource Type:

Masters Thesis

Full Text:

stands were unburned. No relationships were detected between site environment or disturbance history
Understory herb and shrub responses to root trenching, pre-commercial thinning, and canopy closure in Douglas-fir forest of the western Cascades, Oregon

Creator:

Lindh, Briana C.

Abstract:

This thesis examines factors limiting understory herb presence and flowering in young second-growth Douglas-fir (Pseudotsuga menziesii) forests on the west side of the Cascade Mountains, Oregon, USA. I studied the belowground effects of canopy trees on understory herbs and shrubs in old-growth forests using trenched plots from which tree roots...

Resource Type:

Dissertation

Full Text:

, Andy Gray, and Charlie Halpern for their help in designing, implementing, and completing this project
Biological Soil Crusts of the Great Basin : An Examination of their Distribution, Recovery from Disturbance and Restoration

Creator:

Condon, Lea A.

Abstract:

We are at risk of losing the sagebrush steppe in the floristic Great Basin to the invasion of Bromus tectorum L., cheatgrass. The floristic Great Basin includes the Central Basin and Range, the Northern Basin and Range, and the Snake River Plain. The Great Basin receives most of its precipitation...

Resource Type:

Dissertation

Full Text:

biocrusts of the Great Basin and to my knowledge, no one had restored biocrusts within the Great Basin. I
Characterization of fungal and bacterial communities associated with mat-forming ectomycorrhizal fungi from old-growth stands in the H.J. Andrews Experimental Forest

Creator:

Hesse, Cedar N.

Abstract:

Mat-forming ectomycorrhizal (EcM) fungi represent a prevalent constituent of many temperate forest ecosystems and create dramatic changes in soil structure and chemistry. EcM mat soil have been shown to have increased microbial respiration rates and have been hypothesized to harbor unique assemblages of fungi and bacteria. The objectives of this...

Resource Type:

Dissertation

Full Text:

invaluable expertise and encouragement throughout this project. I would like to thank the final members of

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Academic Affiliation

Botany and Plant Pathology11

Advisor

Muir, Patricia S.2
Busby, Posy E.1
Coakley, Stella M.1
Denison, William C.1
Frost, Kenneth1
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1994 to 2021

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Committee Member

McCune, Bruce[remove]11
Acker, Steve1
Arp, Daniel J.1
Bailey, John1
Bond, Barbara1
more Committee Members »

Creator

Blakeley Smith, Matthew R.1
Calvero, Silvino B.1
Celis, Jessica1
Condon, Lea A.1
Delventhal, Kayla D.1
more Creators »

Date

Date range begin – Date range end

Current results range from 1994 to 2021

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Decade

2020-20291
2010-20193
2000-20094
1990-19993

Degree Field

Botany and Plant Pathology[remove]11

Degree Level

Master's7
Doctoral4

Degree Name

Master of Science (M.S.)7
Doctor of Philosophy (Ph.D.)4

Language

English [eng]11

License

All rights reserved7

Non-Academic Affiliation

Oregon State University. Graduate School10

Peer Reviewed

No11

Resource Type

Masters Thesis7
Dissertation4

Rights Statement

In Copyright8
Copyright Not Evaluated3

Subject

Ascomycetes -- Oregon -- Classification1
Atheliaceae -- Oregon -- H.J. Andrews Experimental Forest1
Bryophytes -- Ecology -- Oregon1
Ceanothus -- Effect of fires on -- Oregon -- Applegate River Watershed1
Ceanothus -- Effect of grazing on -- Oregon -- Applegate River Watershed1
more Subjects »

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