Index Catalog // ScholarsArchive@OSU

Buzzing Bolbomyiidae and Air Temperature Monitoring Methods: Investigating Long-Term Ecological Data from the H.J. Andrews Experimental Forest

Creator:: Schmidt, Stephanie A.
Abstract:: The short-term duration of most ecological studies can make it difficult to capture the long-term dynamics of ecosystems and populations. Infrequent or high-impact events can be missed, or erroneously documented as baselines. Long-term ecological research enables a deeper understanding of complex processes, provides a foundation for future insights, and can...
Resource Type:: Masters Thesis
Full Text:: would like to thank my committee, Lisa Ganio, Mark Schulze, and Sherri Johnson for their support, time

Structural Variations of Headwater Stream Food Webs Along Geophysical Gradients at the HJ Andrews Experimental Forest

Creator:: Zatkos, Lauren E.
Abstract:: The structure of food webs and how they relate to community stability has been an important debate in ecology. Specifically, predictability of web shape and how it influenced by surrounding landscapes is one of the main goals of such discussions. Headwater streams provide a study template that is of interest...
Resource Type:: Masters Thesis
Full Text:: . Committee members at OSU included Sherri Johnson, Rebecca Hutchinson, and Katherine McLaughlin, and their

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

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

Natural Variability of Nitrogen and Phosphorus in a Forested Headwater Stream System in the Oregon Coast Range

Creator:: Steadman, Casey L.
Abstract:: Our understanding of nitrogen (N) and phosphorus (P) variability in forested stream systems with minimal disturbance is confounded by the complex interactions of hydrologic and biogeochemical controls. In this thesis, our studies evaluate the variability of stream water N and P in a forested, headwater system in the Oregon Coast...
Resource Type:: Masters Thesis
Full Text:: . Sherri Johnson, I appreciate your kind and practical insight and for sharing your thorough knowledge of

An evaluation of temperature prediction models on Coastal Oregon and western Cascade streams

Creator:: Tanner, Robert W.
Abstract:: Evaluations were performed on three stream temperature prediction models: Heat Source 5.6, SSTEMP 3.9, and Brown's equation. Each model was evaluated using data collected from three Coastal Oregon and two western Cascade streams. Stream temperature simulations were performed on two forested reaches, one clearcut reach, and one buffered reach, for...
Resource Type:: Capstone Project

A study of stream temperature using distributed temperature sensing fiber optics technology in Big Boulder Creek, a tributary to the Middle Fork John Day River in eastern Oregon

Creator:: Arik, Aida D.
Abstract:: The Middle Fork John Day Basin in Northeastern Oregon is prime habitat for spring Chinook salmon and Steelhead trout. In 2008, a major tributary supporting rearing habitat, Big Boulder Creek, was restored to its historic mid-valley channel along a 1 km stretch of stream 800 m upstream of the mouth....
Resource Type:: Masters Thesis

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

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

Determination of Trade-offs between Wetland Ecosystem Services in an Agricultural Landscape

Creator:: Garrison, Stacey L.
Abstract:: Wetland restoration mitigates effects of agricultural development on water quality, flooding, and habitat loss. Multi-objective optimization for wetland locations and sizes has not included objective functions for water quality, hydrology, and habitat in unison, limiting analysis of trade-offs among these ecosystem services. This study establishes two methods to improve the...
Resource Type:: Masters Thesis
Full Text:: this research and paper: Dr. Bruce Dugger, Dr. Sherri Johnson, and Dr. Jennifer Field. I would like

ScholarsArchive@OSU

Buzzing Bolbomyiidae and Air Temperature Monitoring Methods: Investigating Long-Term Ecological Data from the H.J. Andrews Experimental Forest

Structural Variations of Headwater Stream Food Webs Along Geophysical Gradients at the HJ Andrews Experimental Forest

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

Biogeochemical signals of mountainous forested watersheds' response to disturbance

Natural Variability of Nitrogen and Phosphorus in a Forested Headwater Stream System in the Oregon Coast Range

An evaluation of temperature prediction models on Coastal Oregon and western Cascade streams

A study of stream temperature using distributed temperature sensing fiber optics technology in Big Boulder Creek, a tributary to the Middle Fork John Day River in eastern Oregon

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

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

Determination of Trade-offs between Wetland Ecosystem Services in an Agricultural Landscape

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