Index Catalog // ScholarsArchive@OSU

Evolutionary history and speciation of the genus Tragopan

Creator:: Islam, Kamal
Abstract:: A study of the phyletic relationships among five species of tragopans and an outgroup, the Blood Pheasant (Ithaginis cruentus), was conducted from 1987 to 1991. Biochemical, behavioral, and external morphologic characteristics were compared. A cladistic approach was used to compare the behavioral, biochemical, and external morphologic data collectively, as different...
Resource Type:: Dissertation
Full Text:: Evolutionary history and speciation of the genus Tragopan

Amphibian communities and climate change : Where ecological processes meet evolutionary interactions

Creator:: Thurman, Lindsey L.
Abstract:: Forecasts of the impacts of climate change have traditionally focused on individual species and their phenotypes, phenology, or distribution. However, shifts in species distributions and the resulting reorganization of community composition represent an important violation to the assumption of species acting in isolation. Whereas species may respond individualistically to climate...
Resource Type:: Dissertation
Full Text:: : Amphibian Communities and Climate Change: Where Ecological Processes Meet Evolutionary Interactions

Blue grouse winter ecology in northeastern Oregon

Creator:: Pelren, Eric C.
Resource Type:: Dissertation
Full Text:: Doctor of Philosophy in Wildlife Science presented on June 21. 1996. Title: Blue Grouse Winter Ecology

An Investigation into the Distribution, Residency Patterns, Population Connectivity, and Abundance of Blue Whales (Balaenoptera musculus) in New Zealand

Creator:: Barlow, Dawn R.
Abstract:: Species conservation depends on robust population assessment. Data on population abundance, distribution, and connectivity are critical for effective management, especially as baseline information for newly documented populations. I describe a pygmy blue whale (Balaenoptera musculus brevicauda) population in New Zealand waters with year-round presence that overlaps with industrial activities. This...
Resource Type:: Masters Thesis
Full Text:: the past. I have shown how a multidisciplinary research approach, applied to one particular region

Habitat use, spatial ecology, and stable isotope variability of the Pacific harbor seal (Phoca vitulina richardii) along the Oregon coast

Creator:: Steingass, Sheanna M.
Abstract:: Pacific harbor seals (Phoca vitulina richardii) are one of Oregon’s most common coastal predators, numbering between 10,000 and 12,000 individuals (Brown et al. 2005b). They consume more than 149 species or types of marine prey within the Pacific Northwest, which include a large variety of commercially important fisheries species. Despite...
Resource Type:: Dissertation
Full Text:: Wildlife Science presented on June 13, 2018. Title: HABITAT USE, SPATIAL ECOLOGY, AND STABLE ISOTOPE

Black bear population ecology

Creator:: Lindzey, Frederick Grier
Abstract:: Despite relatively mild weather, black bears (Ursus americanus) in southwestern Washington entered dens and remained for an average of 126 days. Bears entered their dens during a 5-week period which began on 21 October. A significant difference (P < 0.05) was found among the average dates of den entrance of...
Resource Type:: Dissertation
Full Text:: Black bear population ecology AN ABSTRACT OF THE

Spatial Ecology and Species Interactions among Predators and their Prey

Creator:: Ruprecht, Joel S.
Abstract:: Carnivores have disproportionate effects in ecological systems but understanding their exact influences on ecosystems is a matter of great complexity and debate. Predators directly impact prey by killing them, and indirectly by modifying their behavior in response to predation risk. Yet how species interact, both among members of a carnivore...
Resource Type:: Dissertation
Full Text:: : Spatial Ecology and Species Interactions among Predators and their Prey Abstract approved

Population ecology of the Columbian white-tailed deer

Creator:: Gavin, Thomas Alan
Abstract:: A population of Columbian white-tailed deer (CWTD) was studied on a refuge (790 ha) in southwestern Washington during 1972-77. Quality of habitat was considered good for these deer and total population size remained between 164-230 as determined by mark-recapture methods during November. Population size declined significantly between the winters of...
Resource Type:: Dissertation
Full Text:: Population ecology of the Columbian white-tailed deer

Nesting season ecology of marbled murrelets at a remote mainland fjord in southeast Alaska

Creator:: Barbaree, Blake A.
Abstract:: This thesis focuses on the nesting ecology and marine space use of Marbled Murrelets (Brachyramphus marmoratus) during the 2007 and 2008 nesting seasons in and around Port Snettisham, a remote mainland fjord in Southeast Alaska. Marbled Murrelets (murrelets) are a declining species throughout most of their range, and their conservation...
Resource Type:: Masters Thesis
Full Text:: : NESTING SEASON ECOLOGY OF MARBLED MURRELETS AT A REMOTE MAINLAND FJORD IN SOUTHEAST ALASKA Abstract

Breeding ecology and nest site selection of Kittlitz's murrelets on Kodiak Island, Alaska

Creator:: Lawonn, Matthew James
Abstract:: The Kittlitz's murrelet (Brachyramphus brevirostris) is a rare member of the seabird family Alcidae that breeds in coastal areas of Alaska and Beringian Russia. The species belongs to the genus Brachyramphus, an unusual seabird taxon in which all three extant species nest non-colonially, situating their nests up to 75 km...
Resource Type:: Masters Thesis
Full Text:: thesis research comprise one of the more detailed studies of the breeding ecology of any Brachyramphus

ScholarsArchive@OSU

Evolutionary history and speciation of the genus Tragopan

Amphibian communities and climate change : Where ecological processes meet evolutionary interactions

Blue grouse winter ecology in northeastern Oregon

An Investigation into the Distribution, Residency Patterns, Population Connectivity, and Abundance of Blue Whales (Balaenoptera musculus) in New Zealand

Habitat use, spatial ecology, and stable isotope variability of the Pacific harbor seal (Phoca vitulina richardii) along the Oregon coast

Black bear population ecology

Spatial Ecology and Species Interactions among Predators and their Prey

Population ecology of the Columbian white-tailed deer

Nesting season ecology of marbled murrelets at a remote mainland fjord in southeast Alaska

Breeding ecology and nest site selection of Kittlitz's murrelets on Kodiak Island, Alaska

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