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Monitoring walrus diets in conjunction with estimates of body condition and productivity will be useful to track potential changes in the prey base and subsequent effects on walrus. While climate change will continue to make life harder for walruses in the Arctic, Defenders is working to protect habitat, bolster spill response, mitigate climate change and defend the Marine Mammal Protection Act. As a result of less sea ice, walrus are changing their behavior. Gestation: 15-16 months Active public participation and full Fedoseev, G.A., Dynamics of the range and ecological differentiation of the Pacific walrus populations, Ekologiya, 1982, no. The walrus has the lowest reproductive rate of any pinniped species. Walruses have anywhere between 400 to 700 whiskers on the front of their face. SAVING THE PACIFIC WALRUS. They are broadly distributed in the Arctic but occur as two distinct subspecies within disparate ranges. The purpose of this plan is to set forth the long range goals of the USFWS for the conservation of the Pacific walrus. The reliance of walruses on sea ice for resting during the summer foraging period makes them vulnerable to changes in climate and the associated loss of sea ice. Many walruses are found in the Siberian Sea, Laptev Sea, Wrangel Island, south to Unimak Island, west of Alaskan Peninsula, and the eastern Kara Sea. The accelerating retreat of sea ice puts the newborns’ safe haven farther away from the mothers’ food—meaning longer, more exhausting swims for the mothers, and more time alone for the calves. With warming conditions come more vessels making the journey into remote ecosystems that were once inaccessible. subspecies occur in geographically isolated populations. Two subspecies are recognized, one in the Pacific and the other in the Atlantic. While no large accidents have been reported, oiled wildlife was found 2012 in the vicinity of St. Lawrence Island, albeit with no identified source. Walrus whiskers contain many sensitive nerve fibers. The Arctic is warming at twice the rate of anywhere else on Earth. Fay, F. H. “Ecology and Biology of the Pacific Walrus, Odobenus rosmarus divergens Illiger.” United States Fish and Wildlife Service, North American Fauna 74 (1982): … The 3-4 month delay before implantation of the embryo, followed by approximately 11 months of active gestation results in a reproductive cycle of more than one year. They are also known to eat carcasses of young seals when food is scarce. Pacific Walrus (Odobenus romarus divergens) are the largest of the of the Pinnipeds “fin footed” family of marine mammals. We co-hosted the Pacific Walrus Spill Response Experts Workshop that brought walrus experts together to solicit advice and information from invited experts in marine mammal oil spill response. Pacific walruses forage on the seafloor, primarily for infaunal invertebrates, and the continental shelves of the Chukchi and Bering Seas provide extensive areas with high benthic biomass [18,19,20] and shallow waters where diving to the seafloor is energetically feasible [21]. The Pacific walrus ranges across the broad and shallow continental shelves of the Bering and Chukchi Seas that extend between the United States and the Russian Federation. Progress Report Range-wide Survey of Pacific Walruses in 2006: Estimated Number of Walruses on Sea Ice 08 January 2009 Speckman, Suzann G.1, Chernook, Vladimir2, Burn, Douglas M.1, Udevitz, Mark S.3, Kochnev, Anatoly4, Vasilev, Alexander2, Benter, R. Bradley1, Lisovsky, Alexander2 1 U.S. Walruses prefer feeding at the bottom of shallow waters, eating clams, molluscs, worms, snails, crustaceans and sea cucumbers. The walrus is listed as data deficient on the IUCN red list. Walruses are bottom feeders; all of their prey sit on the bottom of the ocean floor. Box 115526 1255 W. 8th Street Juneau, AK 99811-5526 Walruses have a disjointed circumpolar distribution. The walrus was once threatened by commercial hunting, but today the biggest danger it faces is climate change. 45–51. Walruses depend on sea ice as a platform for feeding and resting, and a warming Arctic is disrupting their normal patterns. Species Fact: Walruses make noise both above and below the water. Information is presented which will assist in the formulation of regulations and guide research and management activities. 97% of our funds go towards program and support services, with only 3% going towards fundraising. There are two subspecies: the Atlantic walrus (Odobenus rosmarus rosmarus) and the Pacific walrus (O. rosmarus divergens). The purpose of this plan is to set forth the long range goals of the USFWS for the conservation of the Pacific walrus. In 1909, a walrus hide weighing 500 kg (1,100 lb) was collected from an enormous bull in Franz Josef Land, while in August 1910, Jack Woodson shot a 4.9-metre-long (16 ft) walrus, harvesting its 450 kg (1,000 lb) hide. Climate change and the loss of sea ice, human disturbance due to oil and gas development, increased shipping and oil spills. The walrus is the only living species in the family Odobenidae and genus Odobenus . Identified as a candidate for listing under the Endangered Species Act, the U.S. Since a walrus's hide usually accounts for about 20% of its body weight, the total … The Pacific walrus range is expanding and is found in the Bering Sea, as far south as the Bristol Bay area, and the Chukchi, Beaufort, East Siberian and Laptev Seas. Pacific walruses haul-out to rest between foraging bouts in groups of 2–500 animals on sea ice floes, but animals do occasionally haul-out alone. With tusks like an elephant and weighing up 1660 kilograms (3650 pounds), the Pacific walrus is one of the most memorable Arctic inhabitants. Walruses feed on the ocean floor in the relatively shallow waters of the continental shelf, where the sea ice itself sustains a rich food web. Walrus population growth rates tend to be slow, with mature females producing a calf on average every 3 years. From Wildlife Haven to Flaring Well Pads? Adult male walruses generally weigh between 1750 pounds and 3750 pounds. In spring of 2006, a range-wide su rvey of the Pacific walrus (Odobenus rosmarus divergens) was conducted as a collaboration among the U. S. Fish and Wildlife Service, U.S. Geological Survey, Walrus, huge, seal-like mammal with long tusks (upper canine teeth) found in the Arctic seas. The Pacific Walrus is given its name due to the fact that they are found in the North Pacific Region of the Arctic, the Bering, and the Chukchi Seas (Fay 1981). More Precious Arctic Wildlife Habitat Threatened by “Energy Dominance”, Addressing Risk in the Arctic One Coastal Community at a Time. One walrus whisker is about 10 times as strong as a dog/cat whisker. Like the polar bear, it is heavily dependent on sea ice for survival. 2008). With tusks like an elephant and weighing up 1660 kilograms (3650 pounds), the Pacific walrus is one of the most memorable Arctic inhabitants. These stampedes can result in mortality. The Pacific walrus is the only stock occurring in U.S. waters and considered in this account. Fish and Wildlife determined in October 2017 that the Pacific walrus did not warrant listing. In the past decade, earlier melting of sea ice in the summer has forced abnormally large numbers of Pacific walruses ashore on the coasts of Russia and Alaska. The Pacific Walrus inhabits the area from the eastern East Siberian Sea through the Chukchi Sea all the way to the western Beaufort Sea and southward to the waters of the Bering Sea. 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