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Creator:: Crowley, David W.
Abstract:: Breeding habitat of Harlequin ducks (Histrionicus histrionicus) was studied in eastern Prince William Sound, Alaska, during 1991 - 1993. Streams in Prince William Sound were surveyed for Harlequin ducks and monitored with mist nets. Physical characteristics of 24 Harlequin breeding streams were compared to those of 24 streams not used...
Resource Type:: Masters Thesis
Full Text:: tributaries near timberline elevation. Nests were associated with woody debris and shrubs, in shallow

Creator:: Schroer, Gregory L.
Abstract:: Seasonal movements, home ranges, core areas and habitat use patterns of hunted, migratory Roosevelt elk (Cervus elaphus roosevelti) were investigated on the Olympic Peninsula, Washington. Radio telemetry was used to obtain more than 3,100 locations of 9 elk from May 1984 - March 1985, and November - December, 1985. Radio-collared...
Resource Type:: Masters Thesis
Full Text:: ranges at timberline. Migratory routes primarily were in riparian areas on narrow valley floors. Home

Creator:: Voth, Elver Howard
Abstract:: The Mount Jefferson Primitive Area is one of three High Cascade wilderness areas in Oregon. It is second in size among these, covers approximately 136 square miles, and with the addition of a large roadless area in Warm Springs Indian Reservation represents the only one of these areas in Oregon...
Resource Type:: Masters Thesis

Creator:: Carbone, Cheryl B.
Abstract:: Polyethylene has been used extensively for natural gas transport since the mid-1970's. The pipeline system is sound and well-functioning, but there are some aspects of the system that could be improved. One of these is the repair method of leaking pipes. Presently if a natural gas pipe begins to leak,...
Resource Type:: Masters Thesis

Creator:: Gutierrez, Joel C.
Abstract:: Explosively erupting volcanoes and megathrust earthquakes (Mw 8+ magnitude) occur at subduction zones and adjacent volcanic arcs. Volcanic eruptions are observed occurring close in time to megathrust earthquakes in the historical record from at least the 18th century CE to present in locations globally, including Japan in 1707 CE (Chesley...
Resource Type:: Masters Thesis
Full Text:: . In the Bull Run Lake core record, the Mount Hood Timberline tephra bed is observed where the CSZ

Creator:: Couche, Stephen W.
Abstract:: Use of backcountry areas in winter by crosscountry skiers, snowshoers, climbers, snowmobilers and others has increased rapidly in the Mt. Hood area of Oregon in recent years. With this increase in use a larger segment of the user population is being exposed to potential a.,pl.H11 Winger. purpose of this study...
Resource Type:: Masters Thesis
Full Text:: dissemination and field study. The three sites chosen were: Hood River Meadows, White River, and Timberline

Creator:: Klasner, Frederick L.
Abstract:: Sequential aerial photography was used to identify effects of hiking trails on the spatial distribution of subalpine fir (Abies lasiocarpa) habitat at alpine treeline. Vegetation change over a 46 year period was compared along trails relative to areas without trails, at five study sites in the McDonald Creek drainage of...
Resource Type:: Capstone Project
Full Text:: stable. Timberline vegetation patterns in Glacier National Park, as in the entire northern Rockies, are

Creator:: Hanson, David M.
Abstract:: The Holdridge model of ecological classification is applied to the state of Oregon resulting in a life zone map. Vegetation maps are employed to evaluate the units defined by the model. The life zone map collates with vegetation maps and the patterns appear quite rational.
Resource Type:: Capstone Project
Full Text:: model inoffec- timberline from the interior 17 P. T. Thompson, "A Test of the Hoidridge Nodel in

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