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Beaver ecology on the west Copper River Delta, Alaska

Creator:: Cooper, Erin E.
Abstract:: Since the 1964 earthquake and geologic uplift, beavers (Castor canadensis) have expanded their historic range from the inland (outwash plain) Copper River Delta, Alaska to the once tidally influenced areas of the outer area (uplifted marsh). The uplift presents a unique opportunity to observe beaver expansion, habitat selection and influence...
Resource Type:: Masters Thesis
Full Text:: Beaver Ecology on the West Copper River Delta, Alaska AN

Effects of beaver on stream channels and coho salmon habitat, Kenai Peninsula, Alaska

Creator:: Sanner, Carol Jo
Resource Type:: Masters Thesis
Full Text:: Fisheries presented on May 1, 1987. Title: Effects of Beaver on

Sedimentation of beaver ponds in an Oregon Coast Range stream

Creator:: Ringer, Gina O.
Abstract:: Through the trapping of sediment behind dams, the presence of beaver in a watershed may cause substantial changes to fluvial and geomorphic processes. In an effort to investigate sedimentation patterns in beaver ponds in the Oregon Coast Range, a case study was made of the annual accumulation of sediment in...
Resource Type:: Masters Thesis

The spatial distribution of beaver (Castor canadensis) impoundments and effects on plant community structure in the lower Alsea drainage of the Oregon Coast Range

Creator:: Perkins, Thaïs Erbel
Abstract:: Stream systems in the Pacific Northwest have come to be understood in the absence of beaver (Castor canadensis). To understand the effect of beaver upon riparian plant communities, four basins in the lower Alsea drainage were examined to determine the effect of beaver and their impoundments on streamside herbaceous/shrub and...
Resource Type:: Masters Thesis
Full Text:: Beaver (Castor canadensis) Impoundments and Effects on Plant Community Structure in the Lower Alsea

Beaver ecology in Bridge Creek, a tributary to the John Day River

Creator:: Maenhout, Julie L. (Harper)
Abstract:: The American beaver (Castor canadensis) was nearly extirpated by the late 1800's due to the fur trade. Due to reintroduction efforts, it now occupies much of its former range. Beavers are a keystone species and ecosystem engineers, greatly influencing riparian and instream habitats through selective harvesting of plant materials and...
Resource Type:: Masters Thesis
Full Text:: Beaver Ecology in Bridge Creek, a Tributary to the John Day

Habitat classification and characteristics of small mammal and amphibian communities in beaver-pond habitats of the Oregon Coast Range

Creator:: Suzuki, Nobuya
Abstract:: During 1988-1989, stream habitat variables were compared between beaver-dam sites and unoccupied-stream sites to identify variables that may have been important for beaver (Castor canadensis) in selecting dam sites in the streams of the Drift Creek basin, Lincoln County, Oregon. Increasing valley floor width and grass/sedge cover and decreasing stream...
Resource Type:: Masters Thesis

Groundwater elevations and temperature adjacent to a beaver pond in central Oregon

Creator:: Lowry, Michael M.
Abstract:: This study was designed and implemented to observe the spatial and temporal dynamics of groundwater levels and temperatures adjacent to a beaver pond in semi-arid central Oregon. The study site was located on the eastern boundary of Painted Hills National Monument along Bridge Creek, a tributary to the John Day...
Resource Type:: Masters Thesis

Physical dimensions and hydrologic effects of beaver ponds on Kuiu Island in southeast Alaska

Creator:: Beedle, David L.
Abstract:: Dimensional characteristics of 44 beaver dams and ponds on Kuiu Island in Southeast Alaska were determined to evaluate the hydrologic effects of these structures on peak flows. The study area consisted of low gradient, incised streams in broad U-shaped valleys. Pond routing simulations were conducted using four return intervals (2-,...
Resource Type:: Masters Thesis

Influence of water temperature and beaver ponds on Lahontan cutthroat trout in a high-desert stream, southeastern Oregon

Creator:: Talabere, Andrew G.
Abstract:: The distribution of Lahontan cutthroat trout Oncorhynchus clarki henshawi was assessed in a high-desert stream in southeastern Oregon where beaver Castor canadensis are abundant. Longitudinal patterns of beaver ponds, habitat, temperature, and Lahontan cutthroat trout age group distribution were identified throughout Willow Creek. Three distinct stream segments were classified based...
Resource Type:: Masters Thesis
Full Text:: Temperature and Beaver Ponds on Lahontan Cutthroat Trout in a High-Desert Stream, Southeastern Oregon

Spatial and temporal characteristics of groundwater levels adjacent to beaver ponds in Oregon

Creator:: Sharps, Diana E.
Abstract:: This study was undertaken to evaluate the spatial and temporal characteristics of riparian groundwater tables adjacent to beaver ponds. The research was conducted in two parts; in the first portion a two-dimensional, finite-difference computer model was developed and utilized to simulate groundwater elevations through time in pond-adjacent aquifers. Two types...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Beaver ecology on the west Copper River Delta, Alaska

Effects of beaver on stream channels and coho salmon habitat, Kenai Peninsula, Alaska

Sedimentation of beaver ponds in an Oregon Coast Range stream

The spatial distribution of beaver (Castor canadensis) impoundments and effects on plant community structure in the lower Alsea drainage of the Oregon Coast Range

Beaver ecology in Bridge Creek, a tributary to the John Day River

Habitat classification and characteristics of small mammal and amphibian communities in beaver-pond habitats of the Oregon Coast Range

Groundwater elevations and temperature adjacent to a beaver pond in central Oregon

Physical dimensions and hydrologic effects of beaver ponds on Kuiu Island in southeast Alaska

Influence of water temperature and beaver ponds on Lahontan cutthroat trout in a high-desert stream, southeastern Oregon

Spatial and temporal characteristics of groundwater levels adjacent to beaver ponds in Oregon

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