Index Catalog // ScholarsArchive@OSU

Biogeochemical signals of mountainous forested watersheds' response to disturbance

Creator:: Guerrero-Bolaño Francisco J.
Abstract:: Small mountainous watersheds are disproportionate sources of land-derived particulate organic matter (POM) to long-term sinks like lake bottoms and the ocean. As such, these ecosystems are an essential component of the global carbon cycle. The burial of POM in lacustrine and marine sediments contributes to the drawdown of atmospheric CO2...
Resource Type:: Dissertation

From continua to patches : longitudinal patterns in the Middle Fork of the John Day River, Oregon

Creator:: Wright, Kristopher Keith
Abstract:: The Middle Fork John Day River is composed of low gradient, alluvial valley segments separated by constrained, canyon-like reaches, and has a history of multiple land-uses. These factors can alter the physical and biological structure of streams, and disrupt the longitudinal river continuum. I examined habitat, fish, macroinvertebrates, and primary...
Resource Type:: Dissertation
Full Text:: genuine and respectful. My other committee members, Bob Beschta and Sherri Johnson provided invaluable

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:: stream processes. I am grateful to Dr. Sherri Johnson for her support and for being an inspiring female

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:: like a fish and write like I think. My committee members Drs. Sherri Johnson, Steve Railsback, Lisa

Influence of streamflow regime and biotic interactions on fish assemblage structure in rivers of the northern Great Plains

Creator:: Kelly, Valerie
Abstract:: This study evaluates the functional organization of stream fish assemblages in response to streamflow factors and biotic interactions across a range of spatial scale. The study area for this project includes 109 stream reaches located on tributaries to the upper Missouri River in the northern Great Plains. Fish distribution data...
Resource Type:: Dissertation
Full Text:: , especially Sherri Johnson, who encouraged me more than once to Not Give Up, and Jim Grace, who inspired me

Bottom-up Drivers of Primary Producers and Predator Populations in Oregon Streams

Creator:: Kaylor, Matthew J.
Abstract:: Humans have drastically altered the physical habitat and food web structure of stream ecosystems. Two major impacts humans have had on Pacific Northwest streams are modification of streamside forests (as a result of agriculture, land development, and timber harvest), and declines in the return of wild anadromous salmon to headwater...
Resource Type:: Dissertation
Full Text:: my career. I would like to sincerely thank my committee members; Ivan Arismendi, Sherri Johnson

Citizen-agency interactions : an investigation of postfire environments

Creator:: Olsen, Christine Shaw
Abstract:: Wildfire management has grown increasingly complex in recent years, particularly in the West and in the Wildland-Urban Interface (WUI) where a steady population growth has resulted in greater risk to people and property. Recent trends suggest the process of recovering from large fires (>100,000 acres) will become increasingly important to...
Resource Type:: Dissertation
Full Text:: importantly, a second chance when needed. Thank you to John Bliss, Sherri Johnson, Charles Langford, and

Linkages among land use, riparian zones, and uptake and transformation of nitrate in stream ecosystems

Creator:: Sobota, Daniel J.
Abstract:: Land use alters the physical and biological structure of stream ecosystems and potentially alters their capacity to process nitrogen (N), an essential nutrient that has nearly doubled in abundance on the biosphere during the past century from human activities. In this dissertation, I quantified uptake and transformation of nitrate (NO₃⁻)...
Resource Type:: Dissertation
Full Text:: indebted for the opportunity provided by my advisor, Stan Gregory. Sherri Johnson has been extremely

The Influence of the Completion Agenda on Decision-making by Community College Career and Technical Education Program Deans

Creator:: Garrett, Helen Barker
Abstract:: This study documented the influence of the completion agenda on decision-making by community college career and technical education (CTE) deans. Ten career and technical programs deans were identified as the sample for the study. Washington State was selected because of the Student Achievement Initiative that was developed as a completion...
Resource Type:: Dissertation
Full Text:: exchange and power relations between organizations inevitable” (Johnson, 1995, pp. 3-4). While community

ScholarsArchive@OSU

Biogeochemical signals of mountainous forested watersheds' response to disturbance

From continua to patches : longitudinal patterns in the Middle Fork of the John Day River, Oregon

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

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

Influence of streamflow regime and biotic interactions on fish assemblage structure in rivers of the northern Great Plains

Bottom-up Drivers of Primary Producers and Predator Populations in Oregon Streams

Citizen-agency interactions : an investigation of postfire environments

Linkages among land use, riparian zones, and uptake and transformation of nitrate in stream ecosystems

The Influence of the Completion Agenda on Decision-making by Community College Career and Technical Education Program Deans

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