Index Catalog // ScholarsArchive@OSU

Red tree voles in fragmented forests

Creator:: Piasecki, Jason T.
Abstract:: The red tree vole (Arborimus longicaudus) is an arboreal Arvicoline rodent endemic to conifer dominated forests of western Oregon and northwestern California. While commonly associated with old forests, often inhabiting stands over 80 years old, tree voles have also been found in young forests between 20 and 80 years old....
Resource Type:: Masters Thesis
Full Text:: committee members. Katie Moriarty, not only for her most invaluable mentorship in all aspects of my

Phylogeography and population structure of least terns (Sterna antillarum)

Creator:: Draheim, Hope M.
Abstract:: Historically, least terns (Sterna antillarum) were one of the most common tern species in North America. However, population declines have resulted from direct and indirect anthropogenic pressures on their breeding and foraging habitat. Three subspecies of least terns have been described within the United States: California least tern (S. a....
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS Hope M. Draheim for the degree of Master of Science in Wildlife Science

Using auklets to monitor the effects of global warming on the Bering Sea ecosystem : Detecting change in auklet food supply, productivity, and populations

Creator:: Sheffield, Lisa M.
Abstract:: Global warming is progressing more rapidly in polar-regions, and its effects are more pronounced at high latitudes than in other parts of the globe. Changing ocean conditions due to climate change are predicted to have dramatic impacts on marine foodwebs. Seabirds, as upper trophic-level consumers, provide a highly visible and...
Resource Type:: Masters Thesis

Spatiotemporal Associations of Abundance and Vital Rates of Co-occurring Small Mammals in a Late Successional Forest

Creator:: Weldy, Matthew J.
Abstract:: Informed conservation of small mammals, ecosystems, and predators requires a detailed understanding of how small mammals species and communities vary in both space and time, as well as the relative cyclicity and synchrony of this variation. This variation can be especially informative to land managers interested in manipulating the abundance...
Resource Type:: Masters Thesis
Full Text:: Linnell, and Katie Moriarty. Specifically, thanks to Rob for humoring many tangential discussions that

The Role of Trees and Thermal Refugia in Greater Sage-Grouse Brood Habitat Selection

Creator:: Dungannon, Tyler D.
Abstract:: It is well documented that greater sage-grouse (Centrocercus urophasianus; hereafter sage-grouse) populations have been in decline throughout their range in the western United States. Currently, sage-grouse occupy approximately 56% of their historic distribution prior to European settlement. Numerous factors have been cited as potential causes for declining productivity and contraction...
Resource Type:: Masters Thesis
Full Text:: high in the morning (100-m buffer; β = -0.160, 95% CI: -0.189 – -0.134) relative to the afternoon

Prespawning Mortality of Fall Creek Willamette Chinook Salmon (Oncorhynchus tshawytscha): Evaluation of the Effects of a New Trap at the Adult Fish Collection Facility

Creator:: Carey, Katherine
Abstract:: Annual rates of prespawn mortality (PSM) in adult Chinook salmon (Oncorhynchus tshawytscha) trapped and transported upstream of dams in the Willamette River basin are high (often >40%) and could limit the ability to restore natural populations of spring Chinook salmon if not reduced. Improvements at the U.S. Army Corps of...
Resource Type:: Masters Thesis
Full Text:: encouragement. I would like to thank my committee members Dr. Michael Kent and Dr. Katie Dugger for their

Geographic distributions of prey of the northern spotted owl in the central western Cascades, Oregon, 1988-2009

Creator:: Smoluk, Alexis
Abstract:: Spatial variation in the diet of the northern spotted owl (Strix occidentalis caurina) influences owl home ranges, and understanding this relationship will aid managers in forest management prescriptions that influence spotted owl recovery. This study describes the spatial variation in owl diet based on 4183 prey collected at 114 owl...
Resource Type:: Masters Thesis
Full Text:: develop my Geographic Information Science skills which was fundamental to my research. Dr. Katie

The Breeding Ecology and Foraging Niche of Aleutian Terns (Onychoprion aleuticus) in the Kodiak Archipelago, Alaska

Creator:: Tengeres, Jill E.
Abstract:: The Aleutian tern (Onychoprion aleuticus) is a species of high conservation concern in Alaska due to large declines at known breeding locations since the 1960s. Due to the small population size and ephemeral behavior of this species on the nesting grounds, there is little basic biological information available and data...
Resource Type:: Masters Thesis
Full Text:: grateful to my committee members, Dr. Katie Dugger for all of her help and guidance about nest survival

Factors influencing nest success of greater sandhill cranes at Malheur National Wildlife Refuge, Oregon

Creator:: Ivey, Gary L.
Abstract:: I developed a priori hypotheses and used logistic regression to model Greater Sandhill Crane (Grus canadensis tabida) nest success in relation to weather, habitat and management variables for cranes breeding at Malheur National Wildlife Refuge (MNWR) in southeast Oregon. My primary interest was to investigate the effects of habitat conditions...
Resource Type:: Masters Thesis
Full Text:: . Katie Dugger and Dr. Chad Boyd for their service as committee members. I am indebted to Carroll D

Greater Sage-Grouse Demography, Habitat Selection, and Habitat Connectivity in Relation to Western Juniper and its Management

Creator:: Olsen, Andrew C.
Abstract:: The expansion of native, woody plants is a global phenomenon with characteristics and effects that are often indistinguishable from exotic invasions. These expansions have largely been driven by altered fire regimes and favorable climatic conditions. In the Great Basin of western North America, expansion of conifers such as western juniper...
Resource Type:: Dissertation
Full Text:: % increase in conifer cover within 400 m of the nest. During the breeding season, sage-grouse selected

Northern fur seal reproductive rates and early maternal care

Creator:: Kunisch, E. (Erin)
Abstract:: The majority of the world's breeding population of northern fur seals (Callorhinus ursinus) is found on the Pribilof Islands (St. Paul and St. George) in the Bering Sea, Alaska. Pup production on these islands experienced an irregular but overall decline since the early 1970's. Between 1998 and 2010, pup production...
Resource Type:: Masters Thesis
Full Text:: ! I want to acknowledge the rest of my graduate committee: Dr. Katie Dugger for her advice throughout

Changing Climate, Changing Contexts : Variation in Rocky Intertidal Predator-prey Interactions Seen Through an Environmental Stress Framework

Creator:: Cerny-Chipman, Elizabeth B.
Abstract:: The multifaceted role of the environment in regulating the structure and dynamics of biological communities has long fascinated ecologists and motivated much debate and research. Now, in a time of accelerated global changes due to human impacts, the need to understand how the environment shapes communities has gained new urgency....
Resource Type:: Dissertation
Full Text:: the mussel M. californianus in the low intertidal zone. I hypothesize that whelks will be able to

Environmental influences on host-pathogen dynamics of the amphibian chytrid fungus

Creator:: Buck, Julia C.
Abstract:: The causes of the global biodiversity crisis are varied and complex. Anthropogenic threats may act in isolation, or interact additively or synergistically with each other or with natural stressors to affect sensitive taxa. The recent emergence of many infectious diseases in wildlife has brought attention to the role of disease...
Resource Type:: Dissertation
Full Text:: inspiration. Bruce and Katie, thank you for teaching classes that challenged me. Matt, thank you for letting

ScholarsArchive@OSU

Red tree voles in fragmented forests

Phylogeography and population structure of least terns (Sterna antillarum)

Using auklets to monitor the effects of global warming on the Bering Sea ecosystem : Detecting change in auklet food supply, productivity, and populations

Spatiotemporal Associations of Abundance and Vital Rates of Co-occurring Small Mammals in a Late Successional Forest

The Role of Trees and Thermal Refugia in Greater Sage-Grouse Brood Habitat Selection

Prespawning Mortality of Fall Creek Willamette Chinook Salmon (Oncorhynchus tshawytscha): Evaluation of the Effects of a New Trap at the Adult Fish Collection Facility

Geographic distributions of prey of the northern spotted owl in the central western Cascades, Oregon, 1988-2009

The Breeding Ecology and Foraging Niche of Aleutian Terns (Onychoprion aleuticus) in the Kodiak Archipelago, Alaska

Factors influencing nest success of greater sandhill cranes at Malheur National Wildlife Refuge, Oregon

Greater Sage-Grouse Demography, Habitat Selection, and Habitat Connectivity in Relation to Western Juniper and its Management

Northern fur seal reproductive rates and early maternal care

Changing Climate, Changing Contexts : Variation in Rocky Intertidal Predator-prey Interactions Seen Through an Environmental Stress Framework

Environmental influences on host-pathogen dynamics of the amphibian chytrid fungus

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