Index Catalog // ScholarsArchive@OSU

Soil arthropods in the Central Cascades : slash burning effects and biology of some species

Creator:: Estrada-Venegas, Edith G
Abstract:: Despite the recognized role of soil arthropod fauna on nutrient cycling and decomposition processes, many aspects of the effects of sylvicultural methods in forest ecosystems upon their biology remain poorly understood. The long term effects of prescribed fires on soil arthropods in forest ecosystems in the Pacific Northwest have never...
Resource Type:: Masters Thesis
Full Text:: California and southern Oregon (Perry, 1994). In the specific case of the eastern side of the Cascade Range

Relationships of green-tree retention following timber harvest to forest growth and species composition in the western Cascade Mountains

Creator:: Rose, Coulter R.
Abstract:: National Forest management in the Pacific Northwest is shifting from a focus on commodity production to ecosystem management, in which the health of the entire forest ecosystem is considered, rather than that of a few key species. Ecosystem management includes retention of some live trees following timber harvest (green-tree retention)...
Resource Type:: Masters Thesis
Full Text:: harvest to forest growth and species composition in the western Cascade Mountains AN ABSTRACT OF THE

Base and precious metal deposits in the western Cascades of Oregon and southern Washington : mineralogy, fluid inclusion, and sulfur isotopes

Creator:: Summers, Cathy A.
Resource Type:: Masters Thesis
Full Text:: the physiographic provinces of western Oregon and southern Washington. (C - Cascade Range, W - Western

Climatic and physiographic controls on peakflow generation in the western Cascades, Oregon

Creator:: Perkins, Reed
Abstract:: Despite the importance of rain and snowmelt in causing peakflows in the Pacific Northwest, the interactive effects of a snowpack and watershed physiography on streamflow are largely undocumented. This study investigated the influence of soil and snowpack moisture on peakflow hydrograph shape in three small (< 60 ha) control sub-watersheds...
Resource Type:: Dissertation

Management experiments for high-elevation agroforestry systems jointly producing matsutake mushrooms and high-quality timber in the Cascade Range of southern Oregon

Creator:: Weigand, James F.
Abstract:: Experimental prescriptions compare agroforestry systems designed to increase financial returns from high-elevation stands in the southern Oregon Cascade Range. The prescriptions emphasize alternative approaches for joint production of North American matsutake mushrooms (also known as North American pine mushrooms; Tricholoma magnivelare) and high-quality timber. Other agroforestry byproducts from the system...
Resource Type:: Technical Report

Canopy epiphyte studies in the central Oregon Cascades : implications for the management of Douglas-fir forests

Creator:: Sillett, Stephen Charles
Abstract:: This thesis includes four separate studies. The first two studies assessed edge effects in a 700-year-old forest. After 20 years of exposure, epiphyte assemblages on the clearcut edge were similar to those of the forest interior, but there were some differences in vertical distribution patterns. Several species restricted to the...
Resource Type:: Dissertation
Full Text:: Oregon Cascades 5. Eastern Washington 6. Eastern Oregon Cascades 7. Oregon Coast Range 8. Willamette

Selection of day roosts by female long-legged myotis (Myotis volans) in forests of the central Oregon Cascades

Creator:: Ormsbee, Patricia
Abstract:: Measuring habitat selection by bats is complicated by their intricate life cycle. Scaling habitat measurements to reflect a hierarchal habitat selection process can help to define habitat associations of bats. I assessed day roost habitat of female long-legged myotis at four scales: the roost structure, micro-habitat surrounding the roost, the...
Resource Type:: Masters Thesis
Full Text:: patch or evolutionary shifts in habitat 3 selection across the entire globe. The home range of a

Distribution and juvenile ecology of bull trout (Salvelinus confluentus) in the Cascade Mountains

Creator:: Goetz, Frederick Allen
Abstract:: Distribution and juvenile habitat use of bull trout (Salvelinus confluentus) were surveyed in selected areas of the Upper Willamette, Deschutes, upper Yakima, and upper Cedar River basins in Oregon and Washington from 1989 to 1991, using day snorkeling, night snorkeling, and electrofishing. These methods were selected after a preliminary diel...
Resource Type:: Masters Thesis

Petrogenesis of compositionally distinct silicic volcanoes in the Three Sisters region of the Oregon Cascade Range : the effects of crustal extension on the development of continental arc silicic magmatism

Creator:: Hill, Brittain Eames
Abstract:: The Three Sisters region of the Oregon High Cascades has developed three compositionally and petrogenetically distinct silicic (i.e., SiO₂ ≥ 58%) magma systems within the last 600 k.y. These silicic systems evolved from the same High Cascade mafic magma system and developed in the same 20x30 km area of the...
Resource Type:: Dissertation

Movements and habitat asociations of northern flying squirrels in the Central Oregon Cascades

Creator:: Martin, Karl J.
Abstract:: We used radio-telemetry techniques to estimate home range size, movements, den sites, and habitat selection of 39 northern flying squirrels (Glaucomys sabrinus) in 2 old- and 2 second-growth stands in the central Oregon Cascades. Sampling periods were at night during summer and fall of 1991-92. Home ranges were smaller for...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Soil arthropods in the Central Cascades : slash burning effects and biology of some species

Relationships of green-tree retention following timber harvest to forest growth and species composition in the western Cascade Mountains

Base and precious metal deposits in the western Cascades of Oregon and southern Washington : mineralogy, fluid inclusion, and sulfur isotopes

Climatic and physiographic controls on peakflow generation in the western Cascades, Oregon

Management experiments for high-elevation agroforestry systems jointly producing matsutake mushrooms and high-quality timber in the Cascade Range of southern Oregon

Canopy epiphyte studies in the central Oregon Cascades : implications for the management of Douglas-fir forests

Selection of day roosts by female long-legged myotis (Myotis volans) in forests of the central Oregon Cascades

Distribution and juvenile ecology of bull trout (Salvelinus confluentus) in the Cascade Mountains

Petrogenesis of compositionally distinct silicic volcanoes in the Three Sisters region of the Oregon Cascade Range : the effects of crustal extension on the development of continental arc silicic magmatism

Movements and habitat asociations of northern flying squirrels in the Central Oregon Cascades

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