Index Catalog // ScholarsArchive@OSU

Vegetation and soil microbial communities three years after wildfire in spruce-fir forests of northwestern Wyoming

Creator:: Hooke, Jennifer Suzanne
Abstract:: The Normalized Burn Ratio and Composite Burn Index were used to classify burn severity in three sites that experienced lightning-ignited wildfire in the year 2000. The effect of burn severity (unburned, low, moderate, and high severity classes) was investigated on vegetation and soil microbial community composition. Vegetation communities showed a...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jennifer Suzanne Hooke for

Soil carbon and nitrogen in old-growth forests in western Oregon and Washington

Creator:: Remillard, Suzanne Marie
Abstract:: Soil organic carbon (SOC, kg C m-2) is an important component in evaluating global C stores. The nitrogen (TN, kg N m"2) cycle is closely linked to C and understanding its role is also important. Contents and distributions of SOC and TN in soil profiles, to 1-meter depth, were estimated...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Suzanne Marie Remillard

Time-based nitrogen availability and risk of Taeniatherum caput-medusae (L.) Nevski invasion in central Oregon

Creator:: Stubbs, Michelle M.
Abstract:: During the last century, fire suppression, grazing, and climate change have caused sagebrush grasslands to be altered in both function and form; juniper and sagebrush dominate the landscape at the expense of herbaceous plants. Management efforts to reduce juniper and sagebrush overstory in order to enhance herbaceous components of the...
Resource Type:: Masters Thesis
Full Text:: Availability and Risk of Taeniatherum caput-medusae (L.) Nevski Invasion in Central Oregon. Abstract ~ved

Forest macro-arthropods as potential indicators of ecosystem conditions in Western Idaho : an analysis of community composition, biological diversity, and community structure

Creator:: Ruby, Margaret E.
Abstract:: Adaptive ecosystem management is a new paradigm for managing federal forests which requires regular monitoring of ecosystem function and diversity to measure the effects of management. Managers need new strategies and tools to help them assess their progress in maintaining healthy, productive and biologically diverse forests. Biomonitoring of select forest...
Resource Type:: Masters Thesis
Full Text:: size with highest generic diversity in the small patches (ANOV A p<0.l) and by treatment type with

Western larch resistance to Douglas-fir beetle attack

Creator:: Neal, Tiffany A.
Abstract:: Live western larch, Larix occidentalis Nutt., a tree species resistant to the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins, produces the monoterpene 3-carene in higher concentrations compared to Douglas-fir, the preferred host of D. pseudotsugae (Reed et al. 1986). The inhibitory effects on attraction to aggregation pheromones and toxicity of 3-carene to...
Resource Type:: Masters Thesis
Full Text:: . --Chair of the Department of Forest Science Signature redacted for privacy. D~~ of t{l'&2iuate School

The influence of forest management on headwater stream amphibians at multiple spatial scales

Creator:: Stoddard, Margo A.
Abstract:: To effectively manage for biodiversity at broad, ecosystem scales, the influences of habitat structure at multiple spatial scales on vertebrate species must be understood. There are few studies on the broad-scale habitat requirements of stream amphibians despite their importance in streams in forest ecosystems in the Pacific Northwest (PNW) as...
Resource Type:: Masters Thesis
Full Text:: . Visual estimate of percent cover coarse woody debris ( cwd) ~l 0 cm in diameter in a sample unit. Final

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

Potential carbon storage at the landscape scale in the Pacific Northwest, U.S.A.

Creator:: Smithwick, Erica Ann Hoffa
Abstract:: Estimates of potential carbon (C) storage can be used to constrain predictions of future carbon sequestration and to understand the degree to which disturbances, both natural aid anthropogenic, affect C storage. An upper bound on C storage in the Pacific Northwest (PNW) of the United States was estimated using field...
Resource Type:: Dissertation
Full Text:: involved in the design, analysis and writing of each manuscript. Suzanne Remillard was responsible for

Four centuries of soil carbon and nitrogen change after severe fire in a Western Cascades forest landscape

Creator:: Giesen, Thomas William
Abstract:: Fire is a major disturbance process in many forests. Long-term studies of the biogeochemical effects of fires, especially on soils, are very rare. Consequently, long-term effects of fire on soils are often hypothesized from short-term effects. In a chronosequence study, I studied 24 western Cascades (Oregon) forest stands thought to...
Resource Type:: Masters Thesis

Patterns of crown damage within a large wildfire in the Klamath-Siskiyou bioregion

Creator:: Thompson, Jonathan R.
Abstract:: The 2002 Biscuit Fire burned through more than 200,000 ha of mixed conifer/ evergreen hardwood forests in southwestern Oregon and northwestern California. The remarkable size of the fire and the diversity of conditions through which it burned provided an opportunity to analyze the correlates of burn severity across vegetation types...
Resource Type:: Dissertation
Full Text:: to my mom, Suzanne Smith. I hope it makes her proud. CONTRIBUTION OF AUTHORS Jonathan

ScholarsArchive@OSU

Vegetation and soil microbial communities three years after wildfire in spruce-fir forests of northwestern Wyoming

Soil carbon and nitrogen in old-growth forests in western Oregon and Washington

Time-based nitrogen availability and risk of Taeniatherum caput-medusae (L.) Nevski invasion in central Oregon

Forest macro-arthropods as potential indicators of ecosystem conditions in Western Idaho : an analysis of community composition, biological diversity, and community structure

Western larch resistance to Douglas-fir beetle attack

The influence of forest management on headwater stream amphibians at multiple spatial scales

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

Potential carbon storage at the landscape scale in the Pacific Northwest, U.S.A.

Four centuries of soil carbon and nitrogen change after severe fire in a Western Cascades forest landscape

Patterns of crown damage within a large wildfire in the Klamath-Siskiyou bioregion

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