Index Catalog // ScholarsArchive@OSU

The effects of x-irradiation, diethylstilbestrol, and size at time of release on the early sexual maturation of coho salmon Oncorhynchus kisutch

Creator:: Lorz, Harold W.
Abstract:: Precocious male coho are of limited economic value and control of their numbers returning to the hatchery or the increased survival of full-sized adults would be beneficial. Factors influencing early sexual maturation and attempts to suppress this maturation of males through the incorporation of a hormone in the diet, treatment...
Resource Type:: Masters Thesis

Foraging ecology and reproductive energetics of the Kittlitz's murrelet (Brachyramphus brevirostris) in Southeast Alaska

Creator:: Hatch, Nick R.
Abstract:: The Kittlitz's murrelet (Brachyramphus brevirostris) is a species of conservation concern over the entirety of its known range, which spans coastal Alaska and northeastern Russia. Concerns about the status of the species have been raised due to evidence of population declines in key breeding areas, low reproductive output, and perceived...
Resource Type:: Masters Thesis
Full Text:: , USA (59°58'16.93"N, 141°23'3.23"W), a tidewater fjord located on the coast of the Gulf of Alaska ca

Salmon, Saws, and Sense of Place: Using a Discrete Choice Experiment to Examine Place Relationships and Preferences for Stream Restoration on the Quinault Indian Reservation

Creator:: Robinson, Kerrick W.
Abstract:: The social sciences have the capacity to contribute to natural resource management through investigations of human dynamics associated with the environment. Sense of place (SOP), the formed relationships between an individual and the environment, has been considered a fundamental aspect of human well-being and can contribute to more holistic understanding...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Kerrick W. Robinson for the degree of Master of Science in

White-breasted nuthatch density and nesting ecology in oak woodlands of the Willamette Valley, Oregon

Creator:: Viste-Sparkman, Karen
Abstract:: Habitat loss causes a reduction in available resources for wildlife, alters the configuration of remaining habitat, and may isolate wildlife populations. White-breasted nuthatches (Sitta carolinensis) are experiencing long-term population declines in the Willamette Valley of Oregon, where they are historically associated with oak woodlands. As secondary cavity-nesters, white-breasted nuthatches may...
Resource Type:: Masters Thesis
Full Text:: Post, Jeff and Robyn Rice, Dave and Christy Riddell, Harold Secrest, Marty and Lynn Stott, Ernest

Assessment of mule deer fawn survival and birth site habitat attributes in south-central Oregon

Creator:: Speten, David
Abstract:: Mule deer (Odocoileus hemionus) populations in south-central Oregon are near their lowest levels since census efforts began in 1961. I investigated fawn survival, cause-specific mortality, and factors contributing to mortality from 2010 – 2012 to identify potential causes for the decline. I also explored pre-parturition and parturition site characteristics. I...
Resource Type:: Masters Thesis
Full Text:: 31:367-393. Hurley, M. A., J. W. Unsworth, P. Zager, M. Hebblewhite, E. O. Garton, D. M

Effects of winter grazing by geese on rye grass seed yield

Creator:: Clark, Sally Lynn
Resource Type:: Masters Thesis
Full Text:: , 000, 000. 00 (Youngberg. 1975). Annual ryegrass (Lolium multiflorum) and perennial ryegrass (Lolium

Forests to floodplain meadows : detrital dynamics in two headwater streams

Creator:: Brookshire, E. N. Jack
Resource Type:: Masters Thesis
Full Text:: Creek (45°3' 1 7"N, 11 8°24' 11 "W) and Limber Jim Creek (45°06'15"N, 118°19'41"W), both second-order

Sediment characteristics and the trophic status of four Oregon lakes

Creator:: Meyerhoff, Roger Dean
Abstract:: There is evidence that recent ecological changes in lakes and their watersheds can be detected from analysis of lake sediments. This study was initiated to correlate changes in some sediment characteristics of four Oregon lakes with past cultural developments of the lakes and their watersheds. The lakes chosen for this...
Resource Type:: Masters Thesis
Full Text:: ............................. latitude 43° 43' N,a longitude 122° 03' W Elevation ............................ 1650 m (above mean sea

Effects of logging on the spawning bed environment in two Oregon coastal streams

Creator:: Ringler, Neil Harrison
Abstract:: The effects of two patterns of logging on the intragravel environment were studied in three Oregon coastal streams between June 1968 and June 1969. The watershed of one stream (Needle Branch) had been clearcut, and that of a second stream (Deer Creek) cut in staggered settings in 1966. A third...
Resource Type:: Masters Thesis
Full Text:: . Many faculty members at Oregon State University, including Drs. William J. McNeil and George W. Brown

Geomorphic influences on habitat formation, distribution, and development and the classification of upland coastal Oregon streams

Creator:: Hurley, Michael D.
Abstract:: A framework is presented for a more causal explanation and ordering of stream characteristics than traditional means have used. Patterns of stream habitat distribution are related to particular characteristics of the geomorphology of watersheds. Variability in stream characteristics can be explained by the spatial distribution of properties of the watershed...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

The effects of x-irradiation, diethylstilbestrol, and size at time of release on the early sexual maturation of coho salmon Oncorhynchus kisutch

Foraging ecology and reproductive energetics of the Kittlitz's murrelet (Brachyramphus brevirostris) in Southeast Alaska

Salmon, Saws, and Sense of Place: Using a Discrete Choice Experiment to Examine Place Relationships and Preferences for Stream Restoration on the Quinault Indian Reservation

White-breasted nuthatch density and nesting ecology in oak woodlands of the Willamette Valley, Oregon

Assessment of mule deer fawn survival and birth site habitat attributes in south-central Oregon

Effects of winter grazing by geese on rye grass seed yield

Forests to floodplain meadows : detrital dynamics in two headwater streams

Sediment characteristics and the trophic status of four Oregon lakes

Effects of logging on the spawning bed environment in two Oregon coastal streams

Geomorphic influences on habitat formation, distribution, and development and the classification of upland coastal Oregon streams

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