Index Catalog // ScholarsArchive@OSU

Resource Selection by the California Condor (Gymnogyps californianus) Relative to Terrestrial-Based Habitats and Meteorological Conditions

Creator:: Rivers, James W., Johnson, J. Matthew, Haig, Susan M., Schwarz, Carl J., Glendening, John W., Burnett, L. Joseph, George, Daniel, and Grantham, Jesse
Abstract:: Condors and vultures are distinct from most other terrestrial birds because they use extensive soaring flight for their daily movements. Therefore, assessing resource selection by these avian scavengers requires quantifying the availability of terrestrial-based habitats, as well as meteorological variables that influence atmospheric conditions necessary for soaring. In this study,...
Resource Type:: Article

Multivariate Models of Adult Pacific Salmon Returns

Creator:: Burke, Brian J., Peterson, William T., Beckman, Brian R., Morgan, Cheryl, Daly, Elizabeth A., and Litz, Marisa
Abstract:: Most modeling and statistical approaches encourage simplicity, yet ecological processes are often complex, as they are influenced by numerous dynamic environmental and biological factors. Pacific salmon abundance has been highly variable over the last few decades and most forecasting models have proven inadequate, primarily because of a lack of understanding...
Resource Type:: Article
Full Text:: State University, Cooperative Institute for Marine Resources Studies, Newport, Oregon, United States of

Antimicrobial Susceptibility of Vibrio vulnificus and Vibrio parahaemolyticus Recovered from Recreational and Commercial Areas of Chesapeake Bay and Maryland Coastal Bays

Creator:: Shaw, Kristi S., Goldstein, Rachel E. Rosenberg, He, Xin, Jacobs, John M., Crump, Byron C., and Sapkota, Amy R.
Abstract:: Vibrio vulnificus and V. parahaemolyticus in the estuarine-marine environment are of human health significance and may be increasing in pathogenicity and abundance. Vibrio illness originating from dermal contact with Vibrio laden waters or through ingestion of seafood originating from such waters can cause deleterious health effects, particularly if the strains...
Resource Type:: Article
Full Text:: of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, Oregon, United States

Offspring of first-generation hatchery steelhead trout (Oncorhynchus mykiss) grow faster in the hatchery than offspring of wild fish, but survive worse in the wild: Possible mechanisms for inadvertent domestication and fitness loss in hatchery salmon

Creator:: Blouin, Michael S., Wrey, Madeleine C., Bollmann, Stephanie R., Skaar, James C., Twibell, Ronald G., and Fuentes, Claudio
Abstract:: Salmonid fish raised in hatcheries often have lower fitness (number of returning adult offspring) than wild fish when both spawn in the wild. Body size at release from hatcheries is positively correlated with survival at sea. So one explanation for reduced fitness is that hatcheries inadvertently select for trait values...
Resource Type:: Article
Full Text:: , Oregon State University, Corvallis, Oregon, United States of America, 2 Trask Hatchery, Oregon

Warming Ocean Conditions Relate to Increased Trophic Requirements of Threatened and Endangered Salmon

Creator:: Daly, Elizabeth A. and Brodeur, Richard D.
Abstract:: The trophic habits, size and condition of yearling Chinook salmon (Oncorhynchus tshawytscha) caught early in their marine residence were examined during 19 survey years (1981–1985; 1998–2011). Juvenile salmon consumed distinct highly piscivorous diets in cold and warm ocean regimes with major differences between ocean regimes driven by changes in consumption...
Resource Type:: Article
Full Text:: , Newport, Oregon, United States of America, 2 Fish Ecology Division, Northwest Fisheries Science Center

Post-Breeding Season Migrations of a Top Predator, the Harbor Seal (Phoca vitulina richardii), from a Marine Protected Area in Alaska

Creator:: Womble, Jamie N. and Gende, Scott M.
Abstract:: Marine protected areas (MPAs) are increasingly being used as a conservation tool for highly mobile marine vertebrates and the focus is typically on protecting breeding areas where individuals are aggregated seasonally. Yet movements during the non-breeding season can overlap with threats that may be equally as important to population dynamics....
Resource Type:: Article
Full Text:: University, Hatfield Marine Science Center, Newport, Oregon, United States of America, 2Glacier Bay Field

Spatial Ecological Processes and Local Factors Predict the Distribution and Abundance of Spawning by Steelhead (Oncorhynchus mykiss) across a Complex Riverscape

Creator:: Falke, Jeffrey A., Dunham, Jason B., Jordan, Christopher E., McNyset, Kristina M., and Reeves, Gordon H.
Abstract:: Processes that influence habitat selection in landscapes involve the interaction of habitat composition and configuration and are particularly important for species with complex life cycles. We assessed the relative influence of landscape spatial processes and local habitat characteristics on patterns in the distribution and abundance of spawning steelhead (Oncorhynchus mykiss),...
Resource Type:: Article

Ungulate Browsing Maintains Shrub Diversity in the Absence of Episodic Disturbance in Seasonally-Arid Conifer Forest

Creator:: Pekin, Burak K., Wisdom, Michael J., Endress, Bryan A., Naylor, Bridgett J., and Parks, Catherine G.
Abstract:: Ungulates exert a strong influence on the composition and diversity of vegetation communities. However, little is known about how ungulate browsing pressure interacts with episodic disturbances such as fire and stand thinning. We assessed shrub responses to variable browsing pressure by cattle and elk in fuels treated (mechanical removal of...
Resource Type:: Article
Full Text:: River Basin, Oregon, USA. Landsc Urban Plan 80: 212–222. 31. Group PC (2012) United States Average

Local Variability Mediates Vulnerability of Trout Populations to Land Use and Climate Change

Creator:: Penaluna, Brooke E., Dunham, Jason B., Railsback, Steve F., Arismendi, Ivan, Johnson, Sherri L., Bilby, Robert E., Safeeq, Mohammad, and Skaugset, Arne E.
Abstract:: Land use and climate change occur simultaneously around the globe. Fully understanding their separate and combined effects requires a mechanistic understanding at the local scale where their effects are ultimately realized. Here we applied an individual-based model of fish population dynamics to evaluate the role of local stream variability in...
Resource Type:: Article
Full Text:: , 7 Department of Forest Engineering, Oregon State University, Corvallis, OR, 97331, United States of

Estimating Global ‘‘Blue Carbon’’ Emissions from Conversion and Degradation of Vegetated Coastal Ecosystems

Creator:: Pendleton, Linwood, Donato, Daniel C., Murray, Brian C., Crooks, Stephen, Jenkins, W. Aaron, Sifleet, Samantha, Craft, Christopher, Fourqurean, James W., Kauffman, J. Boone, Marba, Nuria, Megonigal, Patrick, Pidgeon, Emily, Herr, Dorothee, Gordon, David, and Baldera, Alexis
Abstract:: Recent attention has focused on the high rates of annual carbon sequestration in vegetated coastal ecosystems—marshes, mangroves, and seagrasses—that may be lost with habitat destruction (‘conversion’). Relatively unappreciated, however, is that conversion of these coastal ecosystems also impacts very large pools of previously-sequestered carbon. Residing mostly in sediments, this ‘blue...
Resource Type:: Article
Full Text:: States of America, 7 Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon

ScholarsArchive@OSU

Resource Selection by the California Condor (Gymnogyps californianus) Relative to Terrestrial-Based Habitats and Meteorological Conditions

Multivariate Models of Adult Pacific Salmon Returns

Antimicrobial Susceptibility of Vibrio vulnificus and Vibrio parahaemolyticus Recovered from Recreational and Commercial Areas of Chesapeake Bay and Maryland Coastal Bays

Offspring of first-generation hatchery steelhead trout (Oncorhynchus mykiss) grow faster in the hatchery than offspring of wild fish, but survive worse in the wild: Possible mechanisms for inadvertent domestication and fitness loss in hatchery salmon

Warming Ocean Conditions Relate to Increased Trophic Requirements of Threatened and Endangered Salmon

Post-Breeding Season Migrations of a Top Predator, the Harbor Seal (Phoca vitulina richardii), from a Marine Protected Area in Alaska

Spatial Ecological Processes and Local Factors Predict the Distribution and Abundance of Spawning by Steelhead (Oncorhynchus mykiss) across a Complex Riverscape

Ungulate Browsing Maintains Shrub Diversity in the Absence of Episodic Disturbance in Seasonally-Arid Conifer Forest

Local Variability Mediates Vulnerability of Trout Populations to Land Use and Climate Change

Estimating Global ‘‘Blue Carbon’’ Emissions from Conversion and Degradation of Vegetated Coastal Ecosystems

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