Index Catalog // ScholarsArchive@OSU

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:: friend and mentor. Thank you for your support and friendship on and off my project. Dr. Chad Boyd, you

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

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

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

Reconnecting aquatic habitats : validating historical habitat use by anadromous fishes using telemetry and stable isotope analysis above barriers

Creator:: Lewis, Sierra Koch
Abstract:: I conducted a study to identify potential spawning habitat for anadromous salmonids above a 60-year-old hydropower dam in the headwaters of the North Umpqua River in Oregon. Like many other historical salmonid-bearing rivers, little documentation exists for anadromous fish presence above potential natural obstacles upstream of Soda Springs Dam. My...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Sierra Koch Lewis for the degree of Master of Science in Fisheries

Payne_Final Presentation Archive _Just Slides.pdf

Creator:: Payne, Sierra D
Abstract:: Artificial reefs create less productive fish communities than their natural counterparts mostly due to differences in habitat complexity and food potential. Are there other factors contributing to this decrease in productivity, such as the material of the habitat? I tested the response of the tidepool sculpin, Oligocottus maculatus, to man-made...
Full Text:: SCULPIN AND MICROHABITAT CHOICE By Sierra Payne INTRODUCTION BACKGROUND • Fisheries declining

Payne_Final Presentation Archive.pdf

Creator:: Payne, Sierra D
Abstract:: Artificial reefs create less productive fish communities than their natural counterparts mostly due to differences in habitat complexity and food potential. Are there other factors contributing to this decrease in productivity, such as the material of the habitat? I tested the response of the tidepool sculpin, Oligocottus maculatus, to man-made...
Full Text:: SCULPIN AND MICROHABITAT CHOICE By Sierra Payne 1 INTRODUCTION 2 BACKGROUND • Fisheries

TonB-dependent outer-membrane proteins of Pseudomonas fluorescens : diverse and redundant roles in iron acquisition

Creator:: Hartney, Sierra L.
Abstract:: Pseudomonas is a diverse genus of Gram-negative bacteria that includes pathogens of plants, insects, and humans as well as environmental strains with no known pathogenicity. Pseudomonas fluorescens itself encompasses a heterologous group of bacteria that are prevalent in soil and on foliar and root surfaces of plants. Some strains of...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Sierra L. Hartney

Spatial and temporal variability of carbon dynamics in a tropical forest of Colombia

Creator:: Sierra, Carlos Alberto
Abstract:: Despite the importance of tropical forest ecosystems in the global carbon cycle, there have been few studies of carbon dynamics in this biome. The magnitude of carbon stocks in the tropics and their changes over time are poorly known since ground-based observations are lacking. In this study, total carbon stocks...
Resource Type:: Masters Thesis
Full Text:: Carlos Alberto Sierra for the degree of Master of Science in Forest Science presented on March 20, 2006

Environmental variability and system heterogeneity in terrestrial biogeochemical models

Creator:: Sierra, Carlos Alberto
Abstract:: Ecosystems are highly heterogeneous systems subjected to important levels of environmental variability; however, it is common in terrestrial biogeochemical models to assume homogeneous properties of the elements of the system or constant environmental conditions. For some processes, heterogeneity in these models is treated very simplistically, but there is not much...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Carlos A. Sierra for the

ScholarsArchive@OSU

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

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

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

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

Reconnecting aquatic habitats : validating historical habitat use by anadromous fishes using telemetry and stable isotope analysis above barriers

Payne_Final Presentation Archive _Just Slides.pdf

Payne_Final Presentation Archive.pdf

TonB-dependent outer-membrane proteins of Pseudomonas fluorescens : diverse and redundant roles in iron acquisition

Spatial and temporal variability of carbon dynamics in a tropical forest of Colombia

Environmental variability and system heterogeneity in terrestrial biogeochemical models

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