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

California condors in the Pacific Northwest : integrating history, molecular ecology, and spatial modeling for reintroduction planning

Creator:: D'Elia, Jesse
Abstract:: Reintroduction programs are increasingly being used to save animals from extinction and aid in their recovery. The California Condor (Gymnogyps californianus), one of the most endangered birds in the world, is a remarkable example of how reintroduction programs can help rapidly increase a species' population numbers and range following a...
Resource Type:: Dissertation
Full Text:: to save animals from extinction and aid in their recovery. The California Condor (Gymnogyps

An analysis of monthly home range size in the critically endangered California Condor Gymnogyps californianus

Creator:: Rivers, James W., Johnson, J. Matthew, Haig, Susan M., Schwarz, Carl J., Burnett, L. Joseph, Brandt, Joseph, George, Daniel, and Grantham, Jesse
Abstract:: Condors and vultures comprise the only group of terrestrial vertebrates in the world that are obligate scavengers, and these species move widely to locate ephemeral, unpredictable, and patchily-distributed food resources. In this study, we used high-resolution GPS location data to quantify monthly home range size of the critically endangered California...
Resource Type:: Article
Full Text:: the critically endangered California Condor Gymnogyps californianus Rivers, J. W., Johnson, J. M

Activity-specific ecological niche models for planning reintroductions of California condors (Gymnogyps californianus)

Creator:: D'Elia, Jesse, Haig, Susan M., Johnson, Matthew, Marcot, Bruce G., and Young, Richard
Abstract:: Ecological niche models can be a useful tool to identify candidate reintroduction sites for endangered species but have been infrequently used for this purpose. In this paper, we (1) develop activity-specific ecological niche models (nesting, roosting, and feeding) for the critically endangered California condor (Gymnogyps californianus) to aid in reintroduction...
Resource Type:: Article

Spatiotemporal Patterns and Risk Factors for Lead Exposure in Endangered California Condors during 15 Years of Reintroduction

Creator:: Kelly, Terra R., Grantham, Jesse, George, Daniel, Welch, Alacia, Brandt, Joseph, Burnett, L. Joseph, Sorenson, Kelly J., Johnson, Matthew, Poppenga, Robert, Moen, David, Rasico, James, Rivers, James W., Battistone, Carie, and Johnson, Christine K.
Abstract:: Large-scale poisoning events are common to scavenging bird species that forage communally, many of which are in decline. To reduce the threat of poisoning and compensate for other persistent threats, management, including supplemental feeding, is ongoing for many reintroduced and endangered vulture populations. Through a longitudinal study of lead exposure...
Resource Type:: Article

Organochlorine Contaminants in Blubber from Stranded Marine Mammals Collected from the Northern Oregon and Southern Washington Coasts; Implications for Re-introducing California Condors, Gymnogyps californianus, in Oregon

Creator:: Gundersen, Deke T., Duffield, Deborah A., Randall, Tina, Wintle, Nate, D'Alessandro, Dalin N., Rice, James M., and Shepherdson, David
Abstract:: Re-introduction of California condors into Oregon is currently being considered, but there are concerns about the safety of potential food sources of this species. Condors are opportunistic feeders and a largely available food source for this species will be stranded marine mammal carcasses. We analyzed 37 blubber samples from 7...
Resource Type:: Article
Full Text:: partnership with the U.S. Fish and Wildlife Service 15 Condor Recovery Team, has developed a successful

RiversJamesForestEcosystemSocietyResourceSelectionCalifornia.pdf

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,...
Full Text:: Resource Selection by the California Condor (Gymnogyps

RiversJamesForestEcosystemSocietyResourceSelectionCalifornia_SupportingInformation.zip

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,...

High Levels of Relatedness between Brown-Headed Cowbird (Molothrus ater) Nestmates in a Heavily Parasitized Host Community

Creator:: Rivers, James W., Young, Sarah, Gonzalez, Elena G., Horton, Brent, Lock, Justin, and Fleischer, Robert C.
Abstract:: Multiple parasitism of host nests by generalist brood parasites reflects the decisions of laying females and may influence the development and behavior of parasitic young. We used microsatellite and mtDNA control-region haplotype data to examine the relatedness of Brown-headed Cowbird (Molothrus ater) offspring in multiply parasitized nests sampled from a...
Resource Type:: Article
Full Text:: promiscuity in the Brown-headed Cowbird. Condor :–. Ellison, K., S. G. Sealy, and H. L. Gibbs

The Diet of the Galapagos Hawk (Buteo galapagoensis) Before and After Goat Eradication

Creator:: Jaramillo, Maricruz, Donaghy-Cannon, Michelle, Vargas, F. Hernán, and Parker, Patricia G.
Abstract:: Eradication is often the preferred method of invasive species management on islands; however, its consequences may affect native communities. Feral goats (Capra hircus), donkeys (Equus asinus), and pigs (Sus scrofa) were eradicated from Santiago Island in the Galapagos Archipelago by 2005. Because feral goats were the dominant herbivores on Santiago...
Resource Type:: Article
Full Text:: THE DIET OF THE GALAPAGOS HAWK (BUTEO GALAPAGOENSIS) BEFORE AND

ScholarsArchive@OSU

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

California condors in the Pacific Northwest : integrating history, molecular ecology, and spatial modeling for reintroduction planning

An analysis of monthly home range size in the critically endangered California Condor Gymnogyps californianus

Activity-specific ecological niche models for planning reintroductions of California condors (Gymnogyps californianus)

Spatiotemporal Patterns and Risk Factors for Lead Exposure in Endangered California Condors during 15 Years of Reintroduction

Organochlorine Contaminants in Blubber from Stranded Marine Mammals Collected from the Northern Oregon and Southern Washington Coasts; Implications for Re-introducing California Condors, Gymnogyps californianus, in Oregon

RiversJamesForestEcosystemSocietyResourceSelectionCalifornia.pdf

RiversJamesForestEcosystemSocietyResourceSelectionCalifornia_SupportingInformation.zip

High Levels of Relatedness between Brown-Headed Cowbird (Molothrus ater) Nestmates in a Heavily Parasitized Host Community

The Diet of the Galapagos Hawk (Buteo galapagoensis) Before and After Goat Eradication

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