Index Catalog // ScholarsArchive@OSU

Effects of esfenvalerate on native macroinvertebrates representative of Pacific Northwest streams

Creator:: Johnson, Katherine R.
Abstract:: Aquatic insects are essential components of healthy stream ecosystems, contributing to nutrient cycling, trophic dynamics and other ecological functions. Aquatic insect species, particularly those in the orders Ephemeroptera, Plecoptera and Trichoptera (EPT taxa) are however, extremely sensitive to insecticide contamination. Given that urban and agricultural use of synthetic pyrethroid insecticides...
Resource Type:: Dissertation
Full Text:: Anderson was an indispensable source of information on aquatic insect biology and laboratory rearing. I’d

Ultraviolet radiation as an environmental stressor of amphibians

Creator:: Bancroft, Betsy A.
Abstract:: My thesis explored the effects of and potential mediating mechanisms for an important environmental stressor, ultraviolet-B (UVB) radiation. UVB radiation has negative effects on organisms in both terrestrial and aquatic systems. I used meta-analysis to quantify the effects of UVB radiation on a diversity of aquatic organisms (Chapter 2). UVB...
Resource Type:: Dissertation
Full Text:: negative effect of UVB on aquatic organisms, the suggestion that UVB negatively affects amphibians has

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:: THESIS OF Janel L. Banks for the degree of Master of Science in Fisheries Science presented on

Streamflow requirements of salmonids

Creator:: Giger, Richard D. and Oregon. Wildlife Commission. Research Division
Resource Type:: Technical Report
Full Text:: differences 22 Effect of water velocity on substrate use 22 STREAMFLOW AND FISH FOOD ORGANISMS 26

The effect of low-level sulfur dioxide on sensitive vegetation : a background document for use in assessing air quality redesignation for primitive areas as required by the Clean Air Act Amendments of 1977 (P.L. 95-95)

Creator:: Walsh, Natalie, Carlson, Clinton E., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: 5200 May 1978 THE EFFECT OF LOW-LEVEL SULFUR DIOXIDE ON SENSITIVE VEGETATION A Background Document

Streamflow requirements of salmonids

Creator:: Keeley, Patrick L., Nickelson, Thomas E., and Oregon. Wildlife Commission. Research Division
Abstract:: Field investigations were implemented to study the interrelationships between streamflows and salmonid production during the summer-fall low flow period in two natural stream channels. Elk Creek, near Cannon Beach in Clatsop County, was the site selected for intensive investigation. Construction of streamflow control and diversion facilities was completed in November...
Resource Type:: Technical Report
Full Text:: total of 4800 meters of stream channel was surveyed on the two forks and permanent markers in- stalled

Analysis of semi-volatile organic contaminants and their accumulation in remote aquatic ecosystems of the western US

Creator:: Ackerman, Luke K.
Abstract:: Many pesticides, polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and polycyclic aromatic hydrocarbons are persistent, bio-accumulative, and toxic. These semi-volatile organic compounds (SOCs) can undergo atmospheric transport and deposition in cold, remote ecosystems. A better understanding of their accumulation in the fish of these ecosystems is important to better predict...
Resource Type:: Dissertation
Full Text:: Accumulation in Remote Aquatic Ecosystems of the Western US 1. Introduction 1.1 Background on SOCs

Headwater stream macroinvertebrates of the H.J. Andrews Experimental Forest, Oregon

Creator:: Frady, Charles H.
Abstract:: Recent studies of headwater streams have demonstrated their importance to overall watershed biodiversity, nutrient cycling, and energy flux. However, little attention has been paid to long-term effects of forest harvest on macroinvertebrate communities in headwater streams. This study investigated headwater stream macroinvertebrate communities in the H.J. Andrews Experimental Forest, Oregon,...
Resource Type:: Masters Thesis
Full Text:: examine the effect of prior forest harvest on stream macroinvertebrates. Concomitantly, this study

Western spruce budworm defoliation trend relative to weather in the Northern Region, 1969-1979

Creator:: Hard, John S., Tunnock, Scott, Eder, Robert G., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Western spruce budworm defoliated area in the Northern Region has differed significantly across three discrete geographic zones during the past decade. Aerially visible defoliation in northern Idaho increased from 1.7 million acres in 1969 to a high of 2.2 million acres in 1974, and declined to none in 1979. Defoliated...
Resource Type:: Technical Report
Full Text:: May, June, and July of the year before. Based on warm, dry conditions throughout the Region in • 1979

Impact of copper smelter emissions on two subalpine ecosystems near Anaconda, Montana : preliminary report

Creator:: Walsh, Natalie, Bissell, Gael, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Preliminary analysis of data from this study in the mountains southwest of the Anaconda Copper Smelter, an industrial source of SO2 and heavy metal particulate, reflects a complex pattern of pollutant impact. The differential effect of smelter emissions on plant life in the study area is best explained by the...
Resource Type:: Technical Report
Full Text:: . Several researchers have investigated the effect of these emissions on plant life in the Anaconda area

ScholarsArchive@OSU

Effects of esfenvalerate on native macroinvertebrates representative of Pacific Northwest streams

Ultraviolet radiation as an environmental stressor of amphibians

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

Streamflow requirements of salmonids

The effect of low-level sulfur dioxide on sensitive vegetation : a background document for use in assessing air quality redesignation for primitive areas as required by the Clean Air Act Amendments of 1977 (P.L. 95-95)

Streamflow requirements of salmonids

Analysis of semi-volatile organic contaminants and their accumulation in remote aquatic ecosystems of the western US

Headwater stream macroinvertebrates of the H.J. Andrews Experimental Forest, Oregon

Western spruce budworm defoliation trend relative to weather in the Northern Region, 1969-1979

Impact of copper smelter emissions on two subalpine ecosystems near Anaconda, Montana : preliminary report

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