Index Catalog // ScholarsArchive@OSU

Litter decay processes and soil nitrogen availability in native and cheatgrass-dominated arid rangelands

Creator:: Harrison, Kristen S.
Abstract:: As large-scale restorations of degraded rangelands are initiated, land managers need to understand how decades of dominance by the invasive annual grass, cheatgrass (Bromus tectorum L.), have altered ecosystem processes. One way to assess such alterations is by observing differences in decay rates, since decomposition is determined by factors such...
Resource Type:: Masters Thesis
Full Text:: University) and Kermit Cromack Jr. (Forest Science, Oregon State University) for their contributions to this

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
Full Text:: ) 0.7 - 1 Hicks et al. 2002 Symbiotic fixation 101 McNabb and 25 E P with Alnus rubra Cromack 1983

Diurnal bird use of snags on clearcuts in central coastal Oregon

Creator:: Schreiber, Barry
Abstract:: The effect of snag retention on clearcuts on breeding bird populations was evaluated in the Douglas-fir (Pseudotsuga menziesii) dominated forest in central coastal Oregon. Diurnal bird species on 14 clearcut sites (< 4 years old) were censused during two breeding seasons. On clearcuts containing high numbers of snags, cavity-nesting birds...
Resource Type:: Masters Thesis

The influence of herbivore generated inputs on nutrient cycling and soil processes in a lower montane tropical rain forest of Puerto Rico

Creator:: Fonte, Steven J.
Abstract:: The role of insect herbivores in the nutrient cycling dynamics of forest ecosystems remains poorly understood. Although past research in herbivory has focused primarily on the deleterious effects that insects can have on tree growth and mortality, the overall effects of herbivory are more complex. Herbivores have the potential to...
Resource Type:: Masters Thesis
Full Text:: career and life in general. I'd also like to thank my committee members Kermit Cromack, Jr., David

Soil fungal hyphal dynamics and seasonal hypogeous sporocarp production in western Oregon Douglas-fir forests

Creator:: Hunt, Gary, 1945-
Abstract:: Total length and biomass of fungal mycelium in the soil of a young Douglas-fir stand in the central Oregon Coast Range were estimated over 27 months with the agar-film technique. In a second study, phenology and taxonomy of hypogeous (belowground) sporocarps were studied over 32 months in a nearby, young...
Resource Type:: Dissertation
Full Text:: Cromack Jr., and David Loomis. I am grateful to Dr. Robert Fogel who provided the opportunity for me to

The imprint of coarse woody debris on soil biological and chemical properties in the western Oregon Cascades

Creator:: Spears, Julie D. H.
Abstract:: The abundance and spatial heterogeneity of coarse woody debris (CWD) on the forest floor is a prominent feature of Pacific Northwest (PNW) forest ecosystems. The effect of CWD on soil solution chemistry, nutrient cycling and availability, soil physical structure and formation of soil organic matter, however, remains unknown. Therefore, studies...
Resource Type:: Dissertation
Full Text:: . I would also like to thank my committee members, Mark Harmon, Kermit Cromack Jr., Pat Muir and

Impacts of ponderosa pine forest restoration treatments on the ectomycorrhizal fungal community and fine root biomass in the Blue Mountains of Oregon

Creator:: Smith, Jane E. (Jane Elizabeth)
Abstract:: Before the arrival of Euro-Americans, the inland Pacific Northwest was settled by native people whose frequent intentional burning of the landscape promoted open stands dominated by large fire-resistant ponderosa pine. Fire suppression for nearly a century, livestock grazing, and logging of the largest trees has resulted in forests characterized by...
Resource Type:: Dissertation
Full Text:: Miller, Kermit Cromack Jr, Pat Muir, Dan Edge) and to the Forest Mycology Team for their encouragement

Regulation by male-specific fruitless of neural circuitry used during courtship and copulation behavior in Drosophila melanogaster

Creator:: Latham, Kristin Lynn
Abstract:: Courtship and copulation behaviors in Drosophila melanogaster males are regulated by sex-specific products from the gene fruitless (fru). Male-specific FRU proteins (FRU[superscript M]) are putative transcription factors of the BTB-ZnF family that likely act by controlling development and maintenance of the neural circuitry used during male sexual behavior. However, which...
Resource Type:: Dissertation
Full Text:: Fowler, Virginia Weis, Jaga Giebultowicz, and Kermit Cromack, Jr. They have stuck with me from my early

Trophic and habitat requirements of two deposit-feeding stream invertebrates, Ptychoptera townesi (Diptera) and Paraleptophlebia spp. (Ephemeroptera)

Creator:: Mattingly, Rosanna
Abstract:: Ptychoptera townesi (false crane fly, Diptera) occur in high densities in an experimental stream section that has not been allowed to exceed bankfull flow for more than two decades, but are quite rare in areas both upstream and downstream from this section. By contrast, Paraleptophlebia spp. (mayfly, Epherneroptera) are relatively...
Resource Type:: Dissertation

Microbial and biochemical dynamics of ectomycorrhizal mat and non-mat forest soils

Creator:: Kluber, Laurel A.
Abstract:: Dense hyphal mats formed by ectomycorrhizal (EcM) fungi are prominent features in Douglas-fir (Pseudotsuga menziesii) forest soils and have been estimated to cover up to 40% of the forest floor in some stands. Although previous studies have examined various aspects of EcM fungi, little is known about their associated microbial...
Resource Type:: Dissertation
Full Text:: . Acknowledgements We thank Kermit Cromack Jr., Joey Spatafora, Jane Smith, Doni McKay, Guilherme Chaer, and

ScholarsArchive@OSU

Litter decay processes and soil nitrogen availability in native and cheatgrass-dominated arid rangelands

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

Diurnal bird use of snags on clearcuts in central coastal Oregon

The influence of herbivore generated inputs on nutrient cycling and soil processes in a lower montane tropical rain forest of Puerto Rico

Soil fungal hyphal dynamics and seasonal hypogeous sporocarp production in western Oregon Douglas-fir forests

The imprint of coarse woody debris on soil biological and chemical properties in the western Oregon Cascades

Impacts of ponderosa pine forest restoration treatments on the ectomycorrhizal fungal community and fine root biomass in the Blue Mountains of Oregon

Regulation by male-specific fruitless of neural circuitry used during courtship and copulation behavior in Drosophila melanogaster

Trophic and habitat requirements of two deposit-feeding stream invertebrates, Ptychoptera townesi (Diptera) and Paraleptophlebia spp. (Ephemeroptera)

Microbial and biochemical dynamics of ectomycorrhizal mat and non-mat forest soils

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