Index Catalog // ScholarsArchive@OSU

Placement of felled western juniper trees over a stream channel : Effects on water temperature, streamside willow shrubs, and redband trout

Creator:: Matney, Casey A.
Abstract:: All streams in Oregon that are inhabited by salmon and trout have a statemandated water temperature standard. However, temperatures of many streams, especially during summer months, exceed the seven-day average maximum temperature parameter (200 C for redband trout inhabited streams) accepted by the Oregon Department of Environmental Quality. To date,...
Resource Type:: Masters Thesis
Full Text:: very much. CONTRIBUTION OF AUTHORS Drs. Chad Boyd, Tamzen Stringham, and Robert Gresswell assisted

Effects of environmental variables and grazing on planted willow (Salix boothii Dorn) cuttings

Creator:: Lowson, Katherine L.
Abstract:: The influence of streambank location and timing of herbivory on success of planted Booth's willow (Salix boothii Dorn) cuttings along a Rosgen C5-type stream in an eastern Oregon meadow was determined. Willow cuttings were planted on two morphological locations (i.e. point bar and floodplain) in May of 2002 and 2003....
Resource Type:: Masters Thesis
Full Text:: VARIABLES Katherine L. Lowson, John C. Buckhouse, Tamzen K. Stringham, and Chad S. Boyd 10 Abstract

Restoration of Annual Grass-invaded Landscapes in the Sagebrush Steppe using Perennial Grass Seed Technologies and Wyoming Big Sagebrush Transplanting

Creator:: Holfus, Corinna M.
Abstract:: Within the sagebrush steppe ecosystem, invasive annual grasses are of growing management concern as they outcompete native vegetation, change the fundamental nutrient cycling processes, decrease biodiversity, and increase frequency of wildfires. The most widely used and effective management tool to decrease invasive annual grass abundance, is the use of pre-emergent...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Chad S. Boyd Ricardo Mata-González Within the sagebrush steppe ecosystem, invasive

Interspace/under-canopy foraging patterns of beef cattle in sagebrush communities : implications to sage-grouse nesting habitat

Creator:: France, Kevin A.
Abstract:: Livestock grazing has been indirectly related to sage-grouse (centrocercus urophasianus) declines in the western United States and southern Canada; however, there is a lack of scientific research that directly relates the two. Our objective was to investigate the influence of livestock herbivory on sage-grouse nesting habitat by determining the spatial...
Resource Type:: Masters Thesis
Full Text:: . Chad S. Boyd David C. Ganskopp Livestock grazing has been indirectly related to sage-grouse

Factors influencing nest success of greater sandhill cranes at Malheur National Wildlife Refuge, Oregon

Creator:: Ivey, Gary L.
Abstract:: I developed a priori hypotheses and used logistic regression to model Greater Sandhill Crane (Grus canadensis tabida) nest success in relation to weather, habitat and management variables for cranes breeding at Malheur National Wildlife Refuge (MNWR) in southeast Oregon. My primary interest was to investigate the effects of habitat conditions...
Resource Type:: Masters Thesis
Full Text:: . Katie Dugger and Dr. Chad Boyd for their service as committee members. I am indebted to Carroll D

Effect of weather variation on economic results from grasshopper control tactics in Chad : a partial validation of GHLSIM

Creator:: Sheikh, Allah Ditta
Abstract:: Agricultural production in the Sahelian region of Africa is among the lowest in the world. Cyclical infestations of locusts and grasshoppers have contributed to this low productivity. The infestations appear to be triggered by heavy rainfall at the beginning of a crop season after extended drought. Because locusts and grasshoppers...
Resource Type:: Masters Thesis
Full Text:: : Effect of Weather Variation on Economic Results from Grasshopper Control Tactics in Chad: A Partial

Exploration of the feasibility of developing a winter hardy 'Marion' blackberry through genetic engineering

Creator:: Meng, Rengong
Abstract:: Experiments focusing on plant growth regulators’ concentrations and combination, mineral salt formulations and TDZ pretreatment formations were conducted to optimize in vitro shoot regeneration from leaf and petiole explants of 'Marion' blackberry. Optimum shoot formation was obtained when stock plants were incubated in TDZ pretreatment medium for three weeks before...
Resource Type:: Dissertation
Full Text:: through genetic engineering Abstract approved: Chad E. Finn Experiments focusing on plant

Co-producing Software for Environmental and Ecological Visualization

Creator:: Zanocco, Chad
Abstract:: Environmental scientists, land managers, and policy actors are increasingly presented with high-stakes high-uncertainty problems stemming from human-ecosystem interactions. To help address these problems, scientists frequently use models that produce enormous geospatial and temporal datasets that are constantly modified and often seek input from communities outside their discipline. To assist scientists—as...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Chad Zanocco for

Restoring the Sagebrush Component in Crested Wheatgrass–Dominated Communities

Creator:: Davies, Kirk W., Boyd, Chad S., and Nafus, Aleta M.
Abstract:: Monotypic stands of crested wheatgrass (Agropyron cristatum [L] Gaertm. and Agropyron desertorum [Fisch.] Schult.), an introduced grass, occupy vast expanses of the sagebrush steppe. Efforts to improve habitat for sagebrush-associated wildlife by establishing a diverse community of native vegetation in crested wheatgrass stands have largely failed. Instead of concentrating on...
Resource Type:: Article
Full Text:: . Davies,1 Chad S. Boyd,1 and Aleta M. Nafus2 Authors are 1Rangeland Scientists, USDA-ARS, Burns, OR 97720

Is fire exclusion in mountain big sagebrush communities prudent? Soil nutrient, plant diversity and arthropod response to burning

Creator:: Davies, Kirk W., Bates, Jonathan D., Boyd, Chad S., and Nafus, Aleta M.
Abstract:: Fire has largely been excluded from many mountain big sagebrush communities. Managers are reluctant to reintroduce fire, especially in communities without significant conifer encroachment, because of the decline in sagebrush-associated wildlife. Given this management direction, a better understanding of fire exclusion and burning effects is needed. We compared burned to...
Resource Type:: Article
Full Text:: Davies, K. W., Bates, J. D., Boyd, C. S., & Nafus, A. M. (2014). Is fire exclusion in mountain big

ScholarsArchive@OSU

Placement of felled western juniper trees over a stream channel : Effects on water temperature, streamside willow shrubs, and redband trout

Effects of environmental variables and grazing on planted willow (Salix boothii Dorn) cuttings

Restoration of Annual Grass-invaded Landscapes in the Sagebrush Steppe using Perennial Grass Seed Technologies and Wyoming Big Sagebrush Transplanting

Interspace/under-canopy foraging patterns of beef cattle in sagebrush communities : implications to sage-grouse nesting habitat

Factors influencing nest success of greater sandhill cranes at Malheur National Wildlife Refuge, Oregon

Effect of weather variation on economic results from grasshopper control tactics in Chad : a partial validation of GHLSIM

Exploration of the feasibility of developing a winter hardy 'Marion' blackberry through genetic engineering

Co-producing Software for Environmental and Ecological Visualization

Restoring the Sagebrush Component in Crested Wheatgrass–Dominated Communities

Is fire exclusion in mountain big sagebrush communities prudent? Soil nutrient, plant diversity and arthropod response to burning

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