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Filtering by: Has journal Current Biology Remove constraint Has journal: Current Biology Committee Member Doescher, Paul Remove constraint Committee Member: Doescher, Paul Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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Biology and management of glyphosate-resistant creeping bentgrass

Creator:

Hancock, Daniel M.

Abstract:

A two year study was conducted at two locations to determine the effect of three perennial ryegrass (Lolium perenne L.) row spacings on creeping bentgrass (Agrostis stolonfera L.) biomass and seed production. At Location 1 in 2002, the creeping bentgrass biomass within the 7.62 cm row spacing was less than...

Resource Type:

Masters Thesis

Full Text:

of Master of Science in Crop Science presented on April 16. 2004. Title: Biology and Management of
The Biology and ecology of weeping alkaligrass (Puccinellia distans) and Nuttall’s alkaligrass (Puccinellia nuttalliana)

Creator:

Tarasoff, Catherine

Abstract:

Weeping alkaligrass (Puccinellia distans) and Nuttall’s alkaligrass (Puccinellia nuttalliana) infest Kentucky bluegrass seed fields of eastern Oregon. Weeping alkaligrass is an introduced species from Eurasia, whereas Nuttall’s alkaligrass is native to semi arid environments of western North America. These species are often referred to collectively as ‘alkaligrass’; however, for farmers...

Resource Type:

Dissertation

Full Text:

, 2006. Title: The Biology and Ecology of Weeping Alkaligrass (Puccinellia distans) and Nuttall’s
An evaluation of biological control of Linaria dalmatica with Mecinus janthinus in Oregon

Creator:

Park, Alexander

Abstract:

Dalmatian toadflax (Linaria dalmatica) has become a prolific invasive plant of rangelands in Oregon since its arrival in the early 20th century. In 2001, the Oregon Department of Agriculture initiated a release program promoting the distribution of the stem-boring weevil, Mecinus janthinus as classical biological control agent to reduce densities...

Resource Type:

Masters Thesis

Full Text:

indicates that the current infestation of Dalmatian toadflax has reached 1% of its mean biological
Spatial and age class analysis of managed western juniper (Juniperus occidentalis) woodlands in central Oregon

Creator:

Zophy, Kelley T.

Abstract:

Juniper is a native species to Oregon and confers ecological benefits to wildlife when it is at savannah and transitional densities. Its range and extent have fluctuated with climatic change, but the current range expansion is unprecedented in its extent. The range expansion has been associated with the degradation of...

Resource Type:

Masters Thesis

Full Text:

climatic change, but the current range expansion is unprecedented in its extent. The range expansion has
Optimal spatial-dynamic resource allocation facing uncertainty : integrating economics and ecology for invasive species policy

Creator:

Hall, Kim M.

Abstract:

The spatial and temporal behavior of invasive species spread implies that optimal management strategies involve decisions over space and time. Dispersal and propagule pressure are two primary drivers of the spatial-temporal ecological process of species invasion. In the case of riparian communities, stream flow drives the dispersal of vegetation propagules....

Resource Type:

Dissertation

Full Text:

developed in this research improves on current economic models by modeling ecological processes of
Greater sage-grouse reproductive ecology : linkages among habitat resources, maternal nutrition, and chick survival

Creator:

Gregg, Michael A.

Abstract:

Greater sage-grouse (Centrocercus urophasianus) populations declined range wide during the past 50 years. Grouse populations were 2-3 times larger than the current population as recently as the early 1970's. In addition to habitat loss and fragmentation, declines were attributed habitat degradation that caused reduced productivity. Because chick survival remains the...

Resource Type:

Dissertation

Full Text:

50 years. Grouse populations were 2-3 times larger than the current population as recently as the
Small broomrape (Orobanche minor) management using wheat (Triticum aestivum) as a false host

Creator:

Al-thahabi, Salam A.

Abstract:

Small broomrape (Orobanche minor) is an obligate, chlorophyll-lacking parasite that parasitizes red clover (Trifolium pratense) roots. This study was conducted to develop and implement an integrated, biologically based control program for small broomrape by using wheat as a false host to reduce the soil seed bank. The relationship between temperature...

Resource Type:

Dissertation

Full Text:

Dekker. Kasasian, L. 1973. Miscellaneous observations on the biology of Orobanche crenata and O
Experimental reintroduction of northern wormwood (Artemisia campestris var. wormskioldii), a rare species of dynamic cobble bar environments on the Columbia River

Creator:

Brickner, Alexis H.

Abstract:

Rare plant reintroductions that result in additional or more viable wild populations are important conservation tools for maintaining biodiverse ecosystems. Ideally, such projects are best designed as experiments, to improve biological and ecological knowledge of the selected species and monitoring long-term results. Northern wormwood (Artemisia campestris var. wormskioldii: Asteraceae), a...

Resource Type:

Masters Thesis

Full Text:

biology, is still a new field with some shortcomings (Godefroid et al. 2011; Drayton & Primack 2012
Models of a four-species annual weed community : growth, competition, and community dynamics

Creator:

Roush, Mary Lynn

Abstract:

Models of weed communities aid in the development of weed management strategies and elucidate the processes and mechanisms that regulate plant populations and communities. A conceptual weed community model was developed to organize key regulatory life-history processes. Specific investigations focused on the processes of plant growth and competition, and relationships...

Resource Type:

Dissertation

Full Text:

to stay current with advances in basic weed science and to serve the regional needs of weed
Directing ecological succession : the role of competition in restoring semi-arid grasslands dominated by invasive plants

Creator:

Mangla, Seema

Abstract:

Successful ecosystem restoration requires an understanding of the ecological processes directing succession. One of the challenges in the semi-arid grasslands of western United States is replacement of native species by invasive annual grasses. Solutions to this problem require identifying and manipulating ecological processes that direct succession to favor desired vegetation....

Resource Type:

Dissertation

Full Text:

heterogeneity in the effects of grazing and fire on grassland diversity. Conservation Biology 17, 837–845

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Academic Affiliation

Rangeland Resources4
Crop and Soil Science3
Forest Engineering Resources and Management3
Forest Resources3
Forest Science3
more Academic Affiliations »

Advisor

Hibbs, David E.2
Kauffman, J. Boone2
Mallory Smith, Carol2
Pyke, David A.2
Radosevich, Steve2
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1988 to 2017

View distribution

Committee Member

Doescher, Paul[remove]33
Colquhoun, Jed2
Cramer, Lori2
Hibbs, David2
Noller, Jay2
more Committee Members »

Creator

Abrams, Jesse1
Al Thahabi, Salam A.1
Bates, Jonathan D.1
Borman, Michael M.1
Brickner, Alexis H.1
more Creators »

Date

Date range begin – Date range end

Current results range from 1988 to 2017

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Decade

2010-201911
2000-200915
1990-19995
1980-19892

Degree Field

Forest Resources6
Environmental Sciences5
Forest Science5
Crop Science4
Rangeland Resources4
more Degree Fields »

Degree Level

Doctoral19
Master's14

Degree Name

Doctor of Philosophy (Ph.D.)19
Master of Science (M.S.)14

File Format

application/pdf12
pdf1

Language

English [eng]33

License

All rights reserved23

Location

Soda Springs, Idaho, United States, (Populated Place)1

Non-Academic Affiliation

Oregon State University. Graduate School[remove]33

Peer Reviewed

No33

Resource Type

Dissertation19
Masters Thesis14

Rights Statement

In Copyright25
Copyright Not Evaluated7
No Copyright - United States1

Subject

Plant competition2
Plant competition -- Oregon, Eastern2
Sagebrush steppe ecology -- Oregon, Eastern2
Annuals (Plants) -- Growth1
Arid regions ecology -- Great Basin1
more Subjects »

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