Index Catalog // ScholarsArchive@OSU

Habitat quality and biotic integrity in mountain streams of East Maui, Hawaii

Creator:: Carter, H. Jamieson
Abstract:: Hawaiian streams are valued for environmental, cultural, and aesthetic qualities. Windward streams in East Maui, Hawaii are diverted to irrigate crops in central portions of the island. Diversions typically remove 100% of the base flow and leave downstream reaches dry most of the year. Ground water seeps and springs contribute...
Resource Type:: Capstone Project
Full Text:: Jones, and my other committee members, Dr. Stephen Lancaster and Dr. Stephen Schoenholtz, all ingrained

Physical characteristics of forest soils after timber harvest and tillage in central Oregon: a case study

Creator:: Litton, Sabrina
Abstract:: This study examined the effects of timber harvest and subsoiling on soil physical properties considered important to forest productivity and hydrologic concerns. Ground based mechanical timber harvesting on some soil types can cause soil disturbance including compaction. These effects in turn can influence multiple important soil physical properties that affect...
Resource Type:: Capstone Project
Full Text:: with data analysis. Thanks to my committee members, Stephen Schoenholtz and Maria Dragila for their

Influences of clearcut logging on macroinvertebrates in perennial and intermittent headwaters of the Central Oregon Coast Range

Creator:: Banks, Janel
Abstract:: This research was designed to broaden the understanding of how timber-harvest affects aquatic macroinvertebrates in perennial and intermittent headwater streams. This study compared emergent and benthic macroinvertebrate assemblages from 20 headwater streams in the central Oregon Coast Range that varied by harvest condition and flow duration. Through comparison of the...
Resource Type:: Masters Thesis
Full Text:: , Dr. Alan Herlihy, Dr. Judith Li, and Dr. Stephen Schoenholtz, who assisted me at every turn of this

Lotic macroinvertebrate distribution patterns in northeastern Oregon

Creator:: Gerth, William J.
Abstract:: This study was an investigation of lotic macroinvertebrate distribution in northeastern Oregon at two different spatial and biological scales. Examination of assemblages at a limited spatial scale revealed relationships with natural and disturbance gradients and led to questions about distribution of a population at broader spatial scales. In a 16...
Resource Type:: Masters Thesis
Full Text:: constructive criticism. I am indebted to Dr. Stephen Schoenholtz too for his input and for serving on my

Incorporation of salmon derived nutrients into Oregon coastal streams and the role of physical habitat

Creator:: Shaff, Courtney D.
Abstract:: Stream restoration techniques in western Oregon and Washington include physical habitat restoration and more recently the addition of salmon carcasses to improve food availability for juvenile fish. Although both are common practices, few studies have examined the effects of carcass placement and the interaction of nutrient enrichment with physical habitat...
Resource Type:: Masters Thesis
Full Text:: support: Dr. Selina Heppell, Dr. Bill Liss, and Dr. Stephen Schoenholtz. Alan Ritchy and the Charleston

Down by the creek : understanding landowner perspectives on streamside health and management

Creator:: Wiskind, Adam
Abstract:: Both policy makers and private landowners have come to recognize the importance of streamside areas in the maintenance of water quality and fish habitat. Because non-industrial landowners own 42% of the streamside area in the Coast Range, their management is a significant factor in the streamside health of Western Oregon....
Resource Type:: Masters Thesis

People in the forests : interactions between community and forest health in Wallowa County

Creator:: Kelly, Erin Clover
Abstract:: Forests of the Inland West have been experiencing forest health problems arising from over a hundred years of fire suppression, logging, grazing, and mismanagement. Rural communities, meanwhile, have seen escalating unemployment, an exodus of young families, and a dearth of middle-income jobs. The objectives of this thesis are to: 1)...
Resource Type:: Masters Thesis

A characterization of road hydrology in the Oregon Coast Range

Creator:: Gilbert, Erin H.
Abstract:: Forest roads alter hillslope hydrologic processes by intercepting, concentrating, and rerouting storm runoff. Current road drainage guidelines are based on minimizing erosion and do not take into account the impact of forest roads on hillslope hydrology. This work monitors ditch flow and rainfall for 10 road segments over the course...
Resource Type:: Masters Thesis

Hydro-biogeochemical coupling at the hillslope and catchment scale

Creator:: van Verseveld, Willem J.
Abstract:: The specific objectives of this dissertation are to determine subsurface flow behaviors across different antecedent wetness conditions from a top-down perspective and to mechanistically assess the hydrological controls on DOC and N transport at the hillslope and catchment scale. The study area is a small catchment where hillslopes issue directly...
Resource Type:: Dissertation
Full Text:: would like to thank my committee members Steve Wondzell, Stephen Schoenholtz and John Selker for

Over-wintering diet, growth, and prey available to juvenile coho salmon (Oncorhynchus kisutch) in the West Fork Smith River, Oregon

Creator:: Olegario, Anthony
Abstract:: Over-winter growth of juvenile salmonids may be linked to ocean survival and thus species persistence. Diet, growth, and prey available to juvenile coho, Oncorhynchus kisutch, were examined from December 2004 to April 2005 in four tributaries of the West Fork Smith River (WFSR), Oregon. Juvenile coho growth rate and condition...
Resource Type:: Masters Thesis
Full Text:: completing this thesis. I thank my committee, Dr. Judith L. Li, Dr. Joseph L. Ebersole, Dr. Stephen H

ScholarsArchive@OSU

Habitat quality and biotic integrity in mountain streams of East Maui, Hawaii

Physical characteristics of forest soils after timber harvest and tillage in central Oregon: a case study

Influences of clearcut logging on macroinvertebrates in perennial and intermittent headwaters of the Central Oregon Coast Range

Lotic macroinvertebrate distribution patterns in northeastern Oregon

Incorporation of salmon derived nutrients into Oregon coastal streams and the role of physical habitat

Down by the creek : understanding landowner perspectives on streamside health and management

People in the forests : interactions between community and forest health in Wallowa County

A characterization of road hydrology in the Oregon Coast Range

Hydro-biogeochemical coupling at the hillslope and catchment scale

Over-wintering diet, growth, and prey available to juvenile coho salmon (Oncorhynchus kisutch) in the West Fork Smith River, Oregon

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