Publisher: USGS | Science Center: Alaska Science Center (ASC, Anchorage) | Format: URL
alaska.usgs.gov — USGS attached satellite radio-tags to 10 adult walruses (both males and females) to map walrus foraging locations within the St. Lawrence Island polynya. The radio-tags characterized hourly walrus foraging status and provided animal location estimates for 6 to 8 weeks. These data will be used with data from benthic samples collected in the same More...
Publisher: USGS | Science Center: Florida Integrated Science Center (FISC, Gainesville) | Format: URL
fl.biology.usgs.gov — Web page for the Sirenia Project, a USGS Florida Integrated Science Center project that conducts studies on the West Indian manatee (Trichechus manatus). Includes links to manatee research in the news, international research, publications and presentations, and project staff contact information.
September 2005 | Publisher: USGS (Soundwaves) | Science Center: USGS Other | Format: URL
soundwaves.usgs.gov — Biologists in the Sirenia Project at the U.S. Geological Survey (USGS) Florida Integrated Science Center (FISC) in Gainesville, FL, are currently identifying and mapping the genetic material of manatees. Their goal is to better understand and predict the manatee's ability to react to environmental stimuli, such as prolonged periods of cold More...
May 2005 | Publisher: USGS | Science Center: National Wildlife Health Center (NWHC, Madison) | Format: .PDF
www.nwhc.usgs.gov — Recent increases in the frequency and variety of infectious diseases in the southern sea otter may jeopardize the population recovery of this threatened species. This information sheet includes a list of selected publications.
Publisher: USGS | Science Center: Western Ecological Research Center (WERC, Sacramento) | Format: URL
www.werc.usgs.gov — Sea otters (Enhydra lutris) are keystone predators in the nearshore environment of the eastern Pacific Ocean, in a food web composed of sea otter, sea urchin, and kelp forest. Without sea otters, the kelp forest can be overgrazed by sea urchins, which in turn can affect other species that depend on this ecosystem. This resource provides links to More...
Publisher: USGS | Science Center: Patuxent Wildlife Research Center (PWRC, Laurel) | Format: URL
www.pwrc.usgs.gov — This report assesses and forecasts the status of the Florida manatee population over 50 to 150 years, and examines the relative roles that different threats play in determining the status of these marine mammals, in cooperation with scientists at the Florida Fish and Wildlife Conservation Commission's Fish and Wildlife Research Institute (FWC). More...
Publisher: USGS | Science Center: Forest and Rangeland Ecosystem Science Center (FRESC, Corvallis) | Format: URL
fresc.usgs.gov — The Conservation Genetics Lab carries out molecular analysis, pedigree analysis, modeling, data management, and cryogenic sample repository. As a part of this research, the lab investigates the effectiveness of molecular markers used to enhance enforcement of the Endangered Species Act policy. During the past 15 years, this research has involved More...
Publisher: USGS | Science Center: Alaska Science Center (ASC, Anchorage) | Format: URL
www.absc.usgs.gov — An overview of research that looks at the interactions between sea otters and prey species, allowing an assessment of the effects that sea otters have on composition and productivity of coastal marine communities. Includes links to USGS publications resulting from this research.
Publisher: USGS | Science Center: Florida Integrated Science Center (FISC, Gainesville) | Format: URL
fl.biology.usgs.gov — Prior research on manatee (Trichechus manatus latirostris) survival in northwest Florida, based on markresighting photo-identification data from 1982?1998, showed that annual adult apparent survival rate was significantly lower during years with extreme storms. Mechanisms that we proposed could have led to lower estimates included stranding, More...
Publisher: USGS | Science Center: Biological Informatics | Format: URL
biology.usgs.gov — This web page presents samples of genetics and genomics research from the USGS Biological Resources Discipline about the conservation genetics of mammals.
Publisher: USGS | Science Center: Alaska Science Center (ASC, Anchorage) | Format: URL
www.absc.usgs.gov — A web page to introduce research by the USGS Alaska Science Center on sea otter population status and changes in Alaska. Provides some background on why the research is needed, research objectives, and a listing of publications by project staff.
Publisher: USGS | Science Center: Alaska Science Center (ASC, Anchorage) | Format: .PDF
www.absc.usgs.gov — An extensive and diverse array of studies were implemented concurrent with and for several years following the Exxon Valdez oil spill to determine the acute and chronic effects to sea otters. In part, this paper describes what activities relative to sea otters should take place prior to, during, and following another spill similar to the Exxon More...