Ecological drivers of variation in tool-use frequency across sea otter populations
نویسنده
چکیده
Jessica A. Fujii,a Katherine Ralls,b and Martin Tim Tinkerc aMonterey Bay Aquarium, Sea Otter Research and Conservation, 886 Cannery Row, Monterey, CA 93940, USA, bSmithsonian Conservation Biology Institute, National Zoological Park, 3001 Connecticut Avenue NW, Washington, DC 20008, USA, and cU.S. Geological Survey, Western Ecological Research Center, Long Marine Lab, 100 Shaffer Road, Santa Cruz, CA 95060, USA
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