Index Catalog // ScholarsArchive@OSU

Effects of harvest and roads on in-stream wood abundance in the Blue River Basin, western Cascades, Oregon

Creator:: Czarnomski, Nicole M.
Abstract:: Despite many studies of large wood in streams, few landscape scale studies have been conducted. Large-scale studies can reveal how the history of forest harvest and road building has influenced wood patterns in streams of the Pacific Northwest. This study examined the relationships between wood in streams, timber harvest, and...
Resource Type:: Masters Thesis
Full Text:: Harvest and Roads on In-stream Wood Abundance in the Blue River Basin, Western Cascades, Oregon

Watershed-level patterns among stream amphibians in the Blue River watershed, West-Central Cascades of Oregon

Creator:: Hunter, Matthew G.
Abstract:: Most recent research on stream amphibians in the Pacific Northwest has focused on associations with reach-level or stand-level environmental features. Little is known about landscape-level distributions of these species or landscape-level aspects of their life-histories. I used a watershed-wide sample and logistic regression to develop models and maps of probability...
Resource Type:: Masters Thesis
Full Text:: Patterns among Stream Amphibians in the Blue River Watershed, West-Central Cascades of Oregon. Abstract

Age structure, developmental pathways, and fire regime characterization of Douglas-fir/western hemlock forests in the central western Cascades of Oregon

Creator:: Tepley, Alan J.
Abstract:: Descriptions of the fire regime in the Douglas-fir/western hemlock region of the Pacific Northwest traditionally have emphasized infrequent, predominantly stand-replacement fires and an associated linear pathway of stand development, where all stands proceed along a common pathway until reset by the next fire. Although such a description may apply in...
Resource Type:: Dissertation
Full Text:: and managers involved in the Blue River Landscape Strategy, including Cheryl Friesen, Jane Kertis

A three nest, humanly disturbed Great Blue Heron colony along the Willamette River, Linn County

Creator:: Bayer, Range D., 1947-
Abstract:: There were 21 days with observations during 30 January-21 May 1974. Herons were already displaying on January 30, so nesting activity can occur much earlier than has been supposed. A yearling was often seen at the nests, but most nesting activity was by adults. Although eggs were laid in at...
Resource Type:: Article
Full Text:: Blue Heron colony along the Willamette River, Linn County. Journal of Oregon Ornithology 3:311-318

Historical changes in stream habitats in the Columbia River basin

Creator:: McIntosh, Bruce A.
Abstract:: Knowledge of how stream habitats change over time in natural and human-influenced ecosystems at large, regional scales is currently limited. A historical stream survey (1934-1945) was compared to current surveys to assess changes in poo1 habitats in the Columbia River basin. Streams from across the basin, representing a wide range...
Resource Type:: Dissertation

Streamside forests, channel constraint, large woody debris characteristics, and pool morphology in low order streams, Blue Mountains, Oregon

Creator:: Cordova, Jerry J.
Resource Type:: Masters Thesis
Full Text:: viewed in a watershed context to accommodate natural variability between streams and stream reaches

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:: Willamette River basin, Oregon, USA……………….59 11. (A) Mean daily discharge and temperature and (B) stream

Riparian vegetation composition and structure associated with channel morphology of headwater meadow streams in the Blue Mountains, northeast Oregon

Creator:: Toledo, Zachary O.
Abstract:: Relationships between the structure and composition of riparian vegetation with channel morphology were examined in three montane meadow streams in the headwaters of the Upper Grande Ronde River and North Fork John Day River in the Blue Mountains, northeast Oregon. Vegetation composition, root biomass, and channel morphology cross-sections were sampled...
Resource Type:: Masters Thesis
Full Text:: headwaters of the Upper Grande Ronde River and North Fork John Day River in the Blue Mountains, northeast

Historical changes in anadromous fish habitat in the Upper Grande Ronde River, Oregon, 1941-1990

Creator:: McIntosh, Bruce A.
Abstract:: The U.S. Bureau of Fisheries (now National Marine Fisheries Service) conducted stream habitat surveys in the Upper Grande Ronde River Basin in 1941. This survey was part of an extensive inventory of stream habitat conditions for anadromous salmonids (Oncorhynchus spp.) throughout the Columbia River Basin. The survey systematically inventoried 158...
Resource Type:: Masters Thesis

Fish and amphibian use of intermittent streams within the upper Willamette Basin, Oregon

Creator:: Colvin, Randall William
Abstract:: In the fall through spring of 2002/03 and 2003/04, the composition of fish and amphibian communities were examined in intermittent streams in the upper Willamette river basin in western Oregon. I recorded standard aquatic habitat variables and water nutrient concentrations (nitrate and phosphate) and correlated them with fish and amphibian...
Resource Type:: Masters Thesis
Full Text:: western Oregon. Land use patterns in the Marys river watershed are closely linked to the landscape

ScholarsArchive@OSU

Effects of harvest and roads on in-stream wood abundance in the Blue River Basin, western Cascades, Oregon

Watershed-level patterns among stream amphibians in the Blue River watershed, West-Central Cascades of Oregon

Age structure, developmental pathways, and fire regime characterization of Douglas-fir/western hemlock forests in the central western Cascades of Oregon

A three nest, humanly disturbed Great Blue Heron colony along the Willamette River, Linn County

Historical changes in stream habitats in the Columbia River basin

Streamside forests, channel constraint, large woody debris characteristics, and pool morphology in low order streams, Blue Mountains, Oregon

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

Riparian vegetation composition and structure associated with channel morphology of headwater meadow streams in the Blue Mountains, northeast Oregon

Historical changes in anadromous fish habitat in the Upper Grande Ronde River, Oregon, 1941-1990

Fish and amphibian use of intermittent streams within the upper Willamette Basin, Oregon

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