Index Catalog // ScholarsArchive@OSU

Carp, Climate, and Water Quality: Applying Systems Modeling to Ecosystem Recovery in Malheur Lake

Creator:: Pearson, James B.
Abstract:: Shallow lakes exist in either a clear or turbid state, with the clear state characterized by an abundance of aquatic macrophytes, diverse aquatic biota, low water column nutrients and phytoplankton biomass, whereas the turbid state is characterized by the opposite. These two distinct states are maintained by reinforcing (positive) feedback...
Resource Type:: Dissertation
Full Text:: Abstract approved: ______________________________________________________ Jason B. Dunham Shallow

Consistency of associate degree definitions and graduation requirements in the California community colleges : perceptions of community college curricular leaders

Creator:: Borg, Carolyn Sue
Abstract:: The purpose of this study was to produce data and information that inform California Community College decision-makers of: (a) extent of variance in California's associate degree definitions and graduation requirements, and (b) perceptions of curricular leaders regarding the variances. Associate degree definitions and graduation requirements were compiled and analyzed from...
Resource Type:: Dissertation
Full Text:: Community College Curricular Leaders. ,...._ ...---) Redacted for privacy Abstract approved: Daniel B

Factors Influencing Growth and Bioenergetics of Fish in Forested Headwater Streams Downstream of Forest Harvest

Creator:: Jensen, Leslie R.
Abstract:: In this study, we used a combination of conventional statistical analyses and mechanistic bioenergetics models to understand the potential effects of environmental variability on growth of stream-living fishes in four headwater streams subject to upstream forest harvest. We focused on two common fish consumers in headwater streams in the Pacific...
Resource Type:: Masters Thesis
Full Text:: without him. CONTRIBUTION OF AUTHORS Dr. Jason B. Dunham was involved in the study

Bioenergetic evaluation of diel vertical migration by bull trout

Creator:: Eckmann, Madeleine
Abstract:: I evaluated hypotheses related to growth as a driver of depth use and diel vertical migration by bull trout (Salvelinus confluentus) in a thermally stratified reservoir. I applied a bioenergetic model to evaluate growth of bull trout in relation to potential patterns of diel depth use by bull trout in...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Jason B. Dunham I evaluated hypotheses related to growth as a driver of depth use and diel

Breeding site selection by coho salmon (Oncorhynchus kisutch) in relation to large wood additions and factors that drive reproductive success

Creator:: Clark, Steven
Abstract:: The fitness of female Pacific salmon (Oncorhynchus spp.) with respect to breeding behavior can be partitioned into at least four components: survival to reproduction, competition for breeding sites, success of egg incubation, and suitability of the local environment near breeding sites for early rearing of juveniles. Accordingly, breeding sites should...
Resource Type:: Masters Thesis
Full Text:: : Jason B. Dunham The fitness of female Pacific salmon (Oncorhynchus spp.) with respect to breeding

Where the Stream Meets the Road : Prioritizing Culvert Replacement for Fish Passage

Creator:: Reagan, Rachel E.
Abstract:: Streams across the world are highly fragmented due to the presence of in-stream barriers (e.g., dams and stream-road crossings), many of which restrict or block fish passage. Retrofitting or replacing these structures is a high priority for restoring habitat connectivity for native fishes and other aquatic organisms in the Pacific...
Resource Type:: Masters Thesis
Full Text:: : Jason B. Dunham Streams across the world are highly fragmented due to the presence of in- stream

Transferability of models to predict selection of cover by coastal cutthroat trout in small streams in western Oregon, USA

Creator:: Andersen, Heidi V.
Abstract:: We assessed use and selection of cover by coastal cutthroat trout (Oncorhynchus clarkii clarkii) in six headwater streams in three watersheds in western Oregon, USA during the summer low flow period from 1 August and September 30, 2007. We tagged 1037 coastal cutthroat trout (>100 mm) with passive integrated transponder...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Jason B. Dunham We assessed use and selection of cover by coastal cutthroat trout

Evaluating the Ecological Trade-Offs of Riparian Thinning for Stream Ecosystems in Second-Growth Redwood Forests of Northern California

Creator:: Roon, David A.
Abstract:: Riparian forests provide a myriad of ecosystem functions for adjacent streams and rivers, and due to these linkages, changes in riparian forest conditions can have direct implications for stream ecosystems. Resource managers in the coast redwood forests (Sequoia sempervirens) of northern California (USA) are actively thinning second-growth stands to accelerate...
Resource Type:: Dissertation
Full Text:: : ___________________________________________________________ Jason B. Dunham Riparian forests provide a myriad of ecosystem functions for adjacent

An investigation into the characteristics, perceptions, and expectations of high school students involved in a pilot statewide tech prep in agriculture program in Washington state

Creator:: Willis, James Franklin
Abstract:: The purpose of the investigation was to develop a profile of characteristics, perceptions and expectations of high school students involved in the Washington Tech Prep in Agriculture Statewide Articulation Program (TPAG). The investigation involved nine individual interviews, the responses of 165 students to a forced response survey instrument, and a...
Resource Type:: Dissertation
Full Text:: Program in Washington State Abstract approved: Daniel B. Dunham The purpose of the investigation was

Assessment of the causal linkages between forests and fish: implications for management and monitoring.

Creator:: Martens, Kyle D.
Abstract:: Understanding the causal links between riparian forests, streams, and salmonids is important to help understand the likely effects of forest management practices. Previous studies have identified three major causal pathways (Instream Cover, Light, and Hydrology) through which riparian forests influence streams, and ultimately stream fishes. To evaluate the potential importance...
Resource Type:: Capstone Project
Full Text:: . Acknowledgements I would like to thank Dr. Jason Dunham of the USGS and Oregon State University for helping guide

Full-time faculty recruitment and selection strategies practiced by learning-centered community colleges

Creator:: Fowler-Hill, Sandra A.
Resource Type:: Dissertation
Full Text:: Recruitment and Selection Strategies Practiced by Learning-centered Community Colleges. Daniel B. Dunham

Experimental analysis of intra- and interspecific competitive interactions between cutthroat trout and sculpins in small streams

Creator:: Ramirez, Ben S.
Abstract:: In the Pacific Northwest ecoregion of North America, sculpins represent a major constituent of freshwater assemblages in coastal rivers. Based on their prevalence and abundance, sculpins are likely important ecologically, yet little is known of their interactions with co-occurring species, such as widely studied salmon and trout (salmonines). In this...
Resource Type:: Masters Thesis
Full Text:: Sculpins in Small Streams Abstract approved: Jason B. Dunham In the Pacific Northwest

Influences of Thermal and Trophic Heterogeneity on Phenology, Growth, and Resource Use by Juvenile Coho Salmon

Creator:: Campbell, Emily Y.
Abstract:: Ecological resources available to freshwater fish shift spatially, temporally and across life stages. To better understand how spatial-temporal availability of resources influence fish, I examined the phenologies of hatching and emergence of Coho Salmon (Oncorhynchus kisutch) in streams with contrasting and strongly defined seasonal thermal variability. The study streams included...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Jason B. Dunham Ecological resources

New insights on an old topic : understanding the effects of forest harvest on trout in the context of climate

Creator:: Penaluna, Brooke E.
Abstract:: Studies of the effects of forest harvest on streams and fish have a long history in the Pacific Northwest. Results of this work have prompted development of new forest harvest practices that are more protective of these resources, but the effectiveness of these new practices has not been fully evaluated....
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Jason B. Dunham Studies of the effects of forest harvest on streams and fish have a long

Responses of juvenile coho salmon and larval lamprey to instream habitat restoration in a Pacific Northwest stream

Creator:: Gonzalez, Rosalinda
Abstract:: Large wood has been utilized in many restoration projects to improve in-stream habitat in the Pacific Northwest for salmon. However, the benefits of this practice remain the subject of ongoing debate and evaluation of these projects has scarcely been done for non-salmonid species such as lamprey. In this study we...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________________________________ Jason B. Dunham Large wood has been utilized in many restoration projects to improve in

Early maturing males in a partially migratory population of anadromous and resident rainbow trout Oncorhynchus mykiss: influences of individual condition and stream temperature

Creator:: McMillan, John R.
Abstract:: Alternative male phenotypes in salmonine fishes arise from individuals that mature as either larger and older anadromous marine-migrants or as smaller and younger freshwater residents. Variability in age and size of males at maturity is hypothesized to be preceded by early differences in growth in size and lipid storage. Water...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Jason Dunham Alternative male phenotypes in salmonine fishes arise from

Seasonal variability in diet and consumption by cottid and salmonid fishes in headwater streams in western Oregon, USA

Creator:: Raggon, Mark F.
Abstract:: Coastal cutthroat trout (Oncorhynchus clarkii clarkii) and cottids (Cottus spp) commonly co-occur in headwater streams in western Oregon. Little is known about the comparative trophic ecology of these species or how they respond to seasonal scarcity of resources. In this study I evaluated the seasonal variability in diets and consumption...
Resource Type:: Masters Thesis
Full Text:: Headwater Streams in Western Oregon, USA Abstract approved: Jason B. Dunham

Interpreting geology in Yosemite National Park, California : a monument to strong granite, powerful glaciers, and the perseverance of life

Creator:: Dunham, Sarah E.
Abstract:: This thesis develops a thematic, geology-based interpretive training manual for the interpretive staff at Yosemite National Park (YNP), California. The manual will help staff understand and convey geologic principles to park visitors who are all experiencing a dynamic landscape comprised of glacially-sculpted igneous rocks. Basic geology and the results of...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Sarah E. Dunham for the degree of Master of Science in Geology presented on November 26

Description and prediction of broad-scale spatial variability in expression of anadromy in female Oncorhynchus mykiss in the John Day River, Oregon, USA

Creator:: Mills, Justin S.
Abstract:: Partial migration is a common migratory behavior where some individuals in a population migrate and others do not. Patterns of partial migration can vary dramatically, especially for species that inhabit a wide range of environments. I described and predicted spatial variation in marine migration (anadromy) of female Oncorhynchus mykiss (steelhead...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Jason B. Dunham Partial migration is a common migratory behavior where some individuals

Guidelines for developing a community college teacher education program in Oregon

Creator:: Dunham, Daniel Bentley
Abstract:: The primary purpose of this study was to develop guidelines for planning a preservice preparation program which would encompass the critical issues in community college teacher education identified in the related literature and by national and state authorities. The secondary purpose was to suggest a plan for a community college...
Resource Type:: Dissertation
Full Text:: education program in Oregon AN ABSTRACT OF THE THESIS OF DANIEL BENTLEY DUNHAM for the DOCTOR OF

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