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Filtering by: Advisor Rao, Sujaya Remove constraint Advisor: Rao, Sujaya Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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Environmental impacts on native bumble bee pollinators in an agricultural landscape of western Oregon

Creator:

Skyrm, Kimberly M.

Abstract:

Bumble bees provide vital pollination services in both native and agricultural landscapes. However, in recent years, bumble bee populations have experienced global population declines. The primary causes of these declines have been attributed to the environmental impacts of pathogens, pesticide use and habitat fragmentation. While research has examined the impacts...

Resource Type:

Dissertation

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: __________________________________________ Sujaya Rao Bumble bees provide vital pollination services in both native and agricultural
Entomopathogenic nematodes for biological control of the Colorado potato beetle, Leptinotarsa decemlineata (Say)

Creator:

Armer, Christine Andrea

Abstract:

The Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say), is the most devastating foliage-feeding pest of potatoes in the United States. Potential biological control agents include the nematodes Heterorhabditis marelatus Liu & Berry and Steinernema riobrave Cabanillas, Poinar & Raulston, which provided nearly 100% CPB control in previous laboratory trials. In...

Resource Type:

Dissertation

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, Mary Powelson, and Gary Reed, and especially advisors Ralph Berry and Sujaya Rao. Funding was
Evaluating benthic macroinvertebrates as bio-indicators of freshwater habitat quality in an eastern Oregon agro-ecosystem

Creator:

Scherr, Melissa A.

Abstract:

The effect of anthropogenic disturbance on river systems is gaining attention, and concerns about the state of freshwater natural resources are increasing globally, as are efforts to restore habitat that has been degraded by disturbance. In rivers, non-point source pollution affects the physical characteristics of the habitat and the endemic...

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Dissertation

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Agro-ecosystem. Abstract approved: Sujaya Rao David E. Wooster The effect of

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Academic Affiliation

Entomology1

Advisor

Rao, Sujaya3
Berry, Ralph E.1
Wooster, David E.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2003 to 2011

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Committee Member

Fisher, Glenn2
Beatty, Joseph1
Gregory, Stanley1
Ingham, Russell1
Kogan, Marcos1
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Creator

Armer, Christine Andrea1
Scherr, Melissa A.1
Skyrm, Kimberly M.1

Date

Date range begin – Date range end

Current results range from 2002 to 2011

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Decade

2010-20192
2000-20091

Degree Field

Entomology3

Degree Level

Doctoral3

Degree Name

Doctor of Philosophy (Ph.D.)[remove]3

Language

English [eng]3

License

All rights reserved2

Non-Academic Affiliation

Oregon State University. Graduate School3

Peer Reviewed

No3

Resource Type

Dissertation3

Rights Statement

In Copyright2
Copyright Not Evaluated1

Subject

Agricultural pollution -- Oregon -- Umatilla River -- Evaluation1
Bumblebees -- Behavior -- Oregon, Western1
Bumblebees -- Effect of pesticides on -- Oregon, Western1
Bumblebees -- Food -- Oregon, Western1
Bumblebees -- Habitat -- Oregon, Western1
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