Transmission of Toxoplasma: clues from the study of sea otters as sentinels of Toxoplasma gondii flow into the marine environment. Enhydra lutris is the furriest animal on Earth, with up to 140,000 hairs on every square centimeter of its body meaning its hairs are 700 times as dense as those on a human head. DOI and the bureaus do not guarantee that outside websites comply with Section 508 (Accessibility Requirements) of the Rehabilitation Act. At 2012 prices (US$47 per ton of C . Because of sea otters role in protecting kelp forests, they impact the lives of not just abalone but hundreds of other species that depend on the shelter, food, or substrate provided by kelp. Sci Adv. Nearshore Marine Ecosystem Research | U.S. Geological Survey The large hind feet are broad and flipperlike. The Service terminated the translocation program and its associated zones in 2012. But reintroducing otters is not a win for everyone. Researchers have also uncovered other surprising indirect effects, such as sea otters beneficial effects on seagrass abundance and even its genetic diversity. Also known as: Enhydra lutris, great sea otter. To me, this is probably one of the clearest pieces of evidence saying, Heres how they did it, Williams says. We found no evidence that sea otter occupation time or any other factor tested affected rockfish or greenling density observed on underwater visual surveys. Read the assessment here. The thick lustrous coat is reddish to dark brown. This document is subject to copyright. Get weekly and/or daily updates delivered to your inbox. Oecologia. A new study by two UC Santa Cruz researchers suggest that a thriving sea otter population that keeps sea urchins in check will in turn allow kelp forests to prosper. official website and that any information you provide is encrypted With one of their main natural predators absent for so long, abalone could be found exposed on rocks instead of hidden in crevices, sometimes piled several animals deep. The biologist attributed this improvement from their near-extermination just a few years earlier to the states total protection. In 2012, a team of ecologists including Estes published a study on the potential for sea otter carbon sequestration in the North Pacific between the Aleutian archipelago and Vancouver Island. Fifteen years ago Christopher Wilmers, a wildlife ecologist now at the University of California, Santa Cruz, published studies looking at how warmer winters in Yellowstone National Park meant fewer elk foundering in deep snow and dying. Your support enables us to keep our content free and accessible to the next generation of scientists and engineers. One species had lower survival rates in heated water when it was on its ownbut when exposed to either competition or predation, the rates between heated and nonheated ponds were virtually equal.
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