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Evaluating High Release Rate MCH (3-methylcyclohex-2-en-1-one) Treatments for Preventing Dendroctonus pseudotsugae (Coleoptera: Curculionidae) Infestations

Creator:: Brookes, Harrison M.
Abstract:: The Douglas-fir beetle (Dendroctonus pseudotsugae Hopkins) can kill large numbers of Douglas-fir trees (Pseudotsuga menziesii (Mirbel) Franco) across a landscape during periods of population outbreaks. High-value individual trees and small stands can be protected from Douglas-fir beetle infestation during outbreaks by applying the anti-aggregation pheromone, MCH (3-methylcyclohex-2-en-1-one). MCH treatments are...
Resource Type:: Masters Thesis
Full Text:: . J. Chem. Ecol. 10: 583-600. Fettig, C. J., D. M. Grosman, and A. S. Munson. 2013. Advances in

Interactions Between Wild Bee Communities and Douglas-fir Beetle (Dendroctonus pseudotsugae) Populations in Douglas-fir (Pseudotsugae menziezii) Forests of the Intermountain West

Creator:: Foote, Gabriel G.
Abstract:: This work combines both applied and basic research regarding previously undescribed relationships between two ecologically and economically important insect groups in coniferous forests, bark beetles (Coleoptera: Curculionidae, Scolytinae) and wild bee (Hymenoptera: Apiformes) communities in Western North America. Across the continent, native bark beetle outbreaks are key drivers of structural...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGEMENTS I wish to acknowledge Darrell Ross and Christopher Fettig for funding my graduate

The dynamics of an isolated population of Acartia tonsa Dana (Copepoda) in Yaquina Bay, Oregon

Creator:: Johnson, John Kenneth
Abstract:: In the upper estuary of Yaquina Bay, Oregon, there is an annual population explosion of Acartia tonsa, (Dana) a calanoid copepod, during the months of July, August and September, followed by a rapid decline to virtual extinction in November. The restricted estuarine distribution affords an excellent opportunity to study the...
Resource Type:: Masters Thesis
Full Text:: - cisms. Dr. Jefferson J. Gonor has also been extremely helpful in providing laboratory space arid

Toward an Optimal Working Distance for Hyperspectral Imaging of Wood

Creator:: Jayawickrama, Michelle T.
Abstract:: The forest products industry relies on the production of high-quality wood to satisfy consumer requirements. Improving wood quality requires an effective and inexpensive technique for measuring critical properties such as density and microfibril angle. An emerging technology known as near-infrared hyperspectral imaging (NIR HSI) essentially captures surface images of samples...
Resource Type:: Honors College Thesis
Full Text:: _____________________________________________________________________ Christopher Still, Committee Member, representing Forest Ecosystems & Society

Pine butterfly (Neophasia menapia) outbreak in the Malheur National Forest, Blue Mountains, Oregon : examining patterns of defoliation

Creator:: DeMarco, Ariadne T.
Abstract:: The pine butterfly (Neophasia menapia C. Felder & R. Felder) (Lepidoptera: Pieridae) is a relatively host-specific defoliator of ponderosa pine (Pinus ponderosa Dougl. ex Laws). From 2008 to 2012, the Malheur National Forest was subject to an outbreak of pine butterfly in ponderosa pine, peaking at ~100,000 ha of forest...
Resource Type:: Masters Thesis
Full Text:: National Forest and State of Montana Lands. USDA Forest Service Report 74-12. Evenden, J. C. 1926. The

Community organization and succession in rocky intertidal surfgrass beds

Creator:: Turner, Teresa
Abstract:: Succession and organization of rocky intertidal zone surfgrass beds (Phyllospadix scouleri Hook) were examined experimentally at two sites on the Oregon coast. The interaction of three attributes of the plant -- high persistence, high preemption, and slow recovery -- strongly influences the organization of surfgrass beds. Permanent plots indicate that...
Resource Type:: Dissertation
Full Text:: Turner ACKNOWLEDGEMENTS J. Lucas deserves special thanks. He helped with every apsect of this

Trends in streamflow from old growth forested watersheds in the western Cascades

Creator:: Moore, Kathleen M.
Abstract:: Increasing temperatures in western North America are expected to result in a decline in winter snowpacks, earlier snowmelt, and a shift in the timing of streamflows, with an increasing fraction of streamflows occurring earlier in the water year and drier conditions during the summer. However, few streamflow datasets have associated...
Resource Type:: Capstone Project
Full Text:: degree of MASTER OF SCIENCE GEOGRAPHY PROGRAM May 2010 Directed by Dr. J. A

Gene expression in the liver of rainbow trout, Oncorhynchus mykiss, during the stress response

Creator:: Momoda, Tracey S.
Abstract:: The extent to which responses to stress are maladaptive or adaptive to the long-term survival of fish remains to be better understood. The aim of this study was to identify differentially expressed genes in the livers of rainbow trout, Oncorhynchus mykiss, responding to an experimental stressor. Gene expression responses were...
Resource Type:: Masters Thesis
Full Text:: the guidance and expertise of my committee members: Dr. Carl B. Schreck, Dr. Christopher J. Bayne

Optimal sensor placement for measuring operating speeds through curves on rural two-lane highways

Creator:: Mecham, Megan E.
Abstract:: Operating speed is one of the best performance measures that can tell transportation agencies how well or how poorly the transportation system is functioning. Fluctuating operating speeds often mean there is a design flaw or something about the physical road design that violates drivers' expectations. A primary example of this...
Resource Type:: Masters Thesis

SocioEconomicMag Meets a Platform for SES-Diverse College Students: A Case Study

Creator:: Agarwal, Puja
Abstract:: Emerging research shows that individual differences in how people use technology sometimes cluster by socioeconomic status (SES) and that when technology is not socioeconomically inclusive, low-SES individuals may abandon it. To understand how to improve technology’s SES-inclusivity, we present a multi-phase case study on SocioEconomicMag (SESMag), an emerging inspection method...
Resource Type:: Masters Thesis
Full Text:: push myself beyond my limits every day. I would thank Prof. Christopher Hundhausen and Prof. J Nicole

ScholarsArchive@OSU

Evaluating High Release Rate MCH (3-methylcyclohex-2-en-1-one) Treatments for Preventing Dendroctonus pseudotsugae (Coleoptera: Curculionidae) Infestations

Interactions Between Wild Bee Communities and Douglas-fir Beetle (Dendroctonus pseudotsugae) Populations in Douglas-fir (Pseudotsugae menziezii) Forests of the Intermountain West

The dynamics of an isolated population of Acartia tonsa Dana (Copepoda) in Yaquina Bay, Oregon

Toward an Optimal Working Distance for Hyperspectral Imaging of Wood

Pine butterfly (Neophasia menapia) outbreak in the Malheur National Forest, Blue Mountains, Oregon : examining patterns of defoliation

Community organization and succession in rocky intertidal surfgrass beds

Trends in streamflow from old growth forested watersheds in the western Cascades

Gene expression in the liver of rainbow trout, Oncorhynchus mykiss, during the stress response

Optimal sensor placement for measuring operating speeds through curves on rural two-lane highways

SocioEconomicMag Meets a Platform for SES-Diverse College Students: A Case Study

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