Index Catalog // ScholarsArchive@OSU

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:: . Abstract approved: __________________________________________________________________ Richard A

Development and application of a resource selection model for pygmy rabbits

Creator:: Meisel, Jennifer K.
Abstract:: Pygmy rabbits (Brachylagus idahoensis) in Oregon and Washington are a sagebrush (Artemisia tridentata spp.) obligate species of concern because of declining populations and extirpation from much of their range. Efforts are underway to establish a captive bred population of the Columbia Basin pygmy rabbit in Washington state for reintroduction into...
Resource Type:: Masters Thesis
Full Text:: approved:_____________________________________________________ Richard A. Schmitz Pygmy

Trophic dynamics of marine nekton and zooplankton in the Northern California Current ecosystem

Creator:: Miller, Todd William
Abstract:: The Northern California Current (NCC) ecosystem exhibits extreme seasonal, interannual and interdecadal shifts in the abiotic environment and shifts in primary and higher production. This variability is also apparent in the spatial structure of the ecosystem with nearshore-shelf waters (<150 m isobath) being highly productive and having a different community...
Resource Type:: Dissertation
Full Text:: the Northern California Current Pelagic Ecosystem. Abstract approved: Hiram W. Li

Vegetation response to prescribed fire in mountain big sagebrush ecosystems at Lava Beds National Monument, California

Creator:: Ellsworth, Lisa M.
Abstract:: Anthropogenic land use alterations such as livestock grazing and fire suppression have greatly altered sagebrush grasslands of the Great Basin, facilitating invasion of exotic annuals, increases in woody species, and losses of native species. Much of the current research surrounding wildland and prescribed fire in sagebrush dominated ecosystems has focused...
Resource Type:: Masters Thesis
Full Text:: . Boone Kauffman Richard F. Miller

Riparian vegetation and larval Pacific Giant (Dicamptodon tenebrosus) and adult Western Redback (Plethodon vehiculum) salamanders in the Oregon Coast Range

Creator:: Graff, Paula (Paula Hayes)
Abstract:: Riparian areas in the Pacific Northwest provide important biotic and abiotic features, such as down wood, moist microsites, and abundant invertebrate prey that benefit aquatic and terrestrial amphibians. Reported high densities of amphibians from streams and riparian areas in the Pacific Northwest highlight their importance in riparian food webs. Amphibians...
Resource Type:: Masters Thesis
Full Text:: W. Daniel Edge Riparian areas in the Pacific Northwest provide important biotic and

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

Creator:: Miller, Scott W.
Abstract:: I used current water management practices in central and eastern Oregon and Washington as natural experiments to quantify the effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies. Reduced discharge had direct (e.g. decreased velocity and wetted habitat) and indirect (e.g. increased conductivity and temperature) effects...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Scott W

Ecology of the northern subpopulation of northern anchovy (Engraulis mordax) in the California Current large marine ecosystem

Creator:: Litz, Marisa N. C.
Abstract:: Northern anchovy (Engraulis mordax) are a dominant forage fish in the California Current large marine ecosystem (CCLME). However, little is known about northern anchovy abundance, distribution, age structure, or population fluctuations relative to ocean conditions in the eastern boundary upwelling system off the U.S. West Coast. This thesis includes three...
Resource Type:: Masters Thesis
Full Text:: less than the best. Thank you to my other committee members: Drs. Robert L. Emmett and Richard D

A preliminary investigation of the spotted owl in Oregon

Creator:: Forsman, Eric D.
Abstract:: Between 1970 and 1974, data were collected on the distribution and biology of the spotted owl (Strix occidentalis) in Oregon. One-hundred and sixteen pairs and seven single birds were located. Spotted owls occurred throughout the mountains of western Oregon and on the east slope of the Cascade Range at least...
Resource Type:: Masters Thesis
Full Text:: woods just as much as I did. I wish to express my thanks to all of them, especially Richard Reynolds

Northern goshawk breeding habitat selection within high-elevation forests of southwestern Colorado

Creator:: Ferland, Cheron L.
Abstract:: The northern goshawk (Accipiter gentilis) is a species of concern in the western United States due to its association with mature structural stage forests. I employed a use-versus-availability study design to quantify the vegetative, physiographic, and landscape variables associated with goshawk breeding habitat selection in the San Juan Mountains of...
Resource Type:: Masters Thesis
Full Text:: . Forsman, Katie M. Dugger, John Hayes, and Richard T. Reynolds. My goshawk field crewmembers were

The impact of small-scale dams on fishes of the Willamette River, Oregon and an evaluation of fish habitat models

Creator:: Li, Hiram W., Schreck, Carl B., Tubb, Richard A., Rodnick, Kenneth, Alhgren, Marie, Crook, Amy, Oregon Cooperative Fishery Research Unit, Oregon State University. Department of Fisheries and Wildlife, Oregon State University. Water Resources Research Institute, and United States. Bureau of Reclamation
Resource Type:: Technical Report
Full Text:: , Orego n . and an Evaluation of Fish Habitat Model s b y Amy, Croo k Hiram: W . L i Carl_ B . Schroc

ScholarsArchive@OSU

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

Development and application of a resource selection model for pygmy rabbits

Trophic dynamics of marine nekton and zooplankton in the Northern California Current ecosystem

Vegetation response to prescribed fire in mountain big sagebrush ecosystems at Lava Beds National Monument, California

Riparian vegetation and larval Pacific Giant (Dicamptodon tenebrosus) and adult Western Redback (Plethodon vehiculum) salamanders in the Oregon Coast Range

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

Ecology of the northern subpopulation of northern anchovy (Engraulis mordax) in the California Current large marine ecosystem

A preliminary investigation of the spotted owl in Oregon

Northern goshawk breeding habitat selection within high-elevation forests of southwestern Colorado

The impact of small-scale dams on fishes of the Willamette River, Oregon and an evaluation of fish habitat models

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