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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

Hinkle Creek Benthic Invertebrate Dataset

Creator:: Gerth, William J., Li, Judith L., Van Driesche, Richard, Sobota, Janel, Murphy, Christina A., Ganio, Lisa, and Skaugset, Arne
Abstract:: This dataset contains records of identified benthic and aquatic emergent invertebrates from pre-timber harvest, post-timber harvest, and reference (no harvest) collection sites in the Hinkle Creek watershed. A variety of fish-bearing tributaries, fishless tributaries, and mainstem creek sites were sampled. Benthic invertebrates were collected using Serber nets and emergent adults...
Resource Type:: Dataset

The use of native macroinverebrates to assess pesticide risk to Oregon streams

Creator:: Peterson, Jennifer L.
Resource Type:: Dissertation

The effects of water withdrawals on the emergence timing, adult body mass, and total emerging biomass of aquatic insects from two northeast Oregon rivers

Creator:: Brown, Phil D.
Abstract:: Small low-head diversion dams are capable of removing much of the flow of a river, often resulting in increased water temperatures and habitat loss. Warmer temperatures have been shown to accelerate aquatic invertebrate growth and development, and discharge reductions can reduce instream habitat, suggesting that water withdrawals may alter both...
Resource Type:: Masters Thesis
Full Text:: profound effect on the life histories of aquatic invertebrates. Temperature plays a direct role in the

Respiratory strategies and associated exchange epithelia as determinants on contaminant uptake in aquatic insects

Creator:: Buchwalter, David B.
Abstract:: Aquatic insects are used extensively to evaluate water quality. Despite their widespread use as indicator organisms, relatively little is known about the organismal characteristics that determine sensitivity differences to individual and multiple stressors. Insects have evolved several respiratory strategies that range from breathing atmospheric air to utilizing dissolved oxygen in...
Resource Type:: Dissertation
Full Text:: our limited understanding of the organismal characteristics that mediate aquatic insect responses to

The response of nitrifying bacteria to treatments of N-Serve and Roundup in continuous-flow soil columns

Creator:: Rhodes, Albert N.
Abstract:: This study examined the effects of Roundup [N-(phosphonomethyl) glycine] and N-Serve [2-chloro-6- (trichloromethyl) pyridine] on nitrifying organisms in static batch, perfusion soil columns, and a new continuous-flow soil column system. The continuous-flow method is new to nitrification studies and was shown to produce greater nitrifier activity than either static batch...
Resource Type:: Masters Thesis
Full Text:: Prosser (1987), on the other 10 hand, examined the effect of surface specificity and attachment on

How to reduce bee poisoning from pesticides [2013]

Creator:: Johansen, Erik, Hooven, Louisa Ada, Sagili, Ramesh Reddy, and Oregon State University. Extension Service
Abstract:: An overview of how a variety of wild and managed bees and their pollination activities are affected by pesticide application. Provides guidelines for how beekeepers, growers and pesticide applicators can work together to prevent bee poisoning.
Resource Type:: Technical Report
Full Text:: the side of caution, and avoid spraying any pesticide near bee colonies and on flowering plants

Protecting pollinating insects from insecticides

Creator:: Oregon Agricultural College. Experiment Station and Scullen, Herman A. (Herman Austin), 1887-
Abstract:: Published June 1948. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: insecticide whenever possible should be applied in such a way and at such a time that none of it will fall on

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

Effect of Various Pesticides on Lettuce Physiology and Yield

Creator:: Toscano, N. C.
Resource Type:: Conference Proceeding
Full Text:: Residue, PPm <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 EFFECT OF VARIOUS PESTICIDES ON LETTUCE PHYSIOLOGY AND

ScholarsArchive@OSU

Effects of esfenvalerate on native macroinvertebrates representative of Pacific Northwest streams

Hinkle Creek Benthic Invertebrate Dataset

The use of native macroinverebrates to assess pesticide risk to Oregon streams

The effects of water withdrawals on the emergence timing, adult body mass, and total emerging biomass of aquatic insects from two northeast Oregon rivers

Respiratory strategies and associated exchange epithelia as determinants on contaminant uptake in aquatic insects

The response of nitrifying bacteria to treatments of N-Serve and Roundup in continuous-flow soil columns

How to reduce bee poisoning from pesticides [2013]

Protecting pollinating insects from insecticides

Ultraviolet radiation as an environmental stressor of amphibians

Effect of Various Pesticides on Lettuce Physiology and Yield

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