Nonlinear effects of group size on the success of wolves hunting elk
نویسندگان
چکیده
Daniel R. MacNulty, Douglas W. Smith, L. David Mech, John A. Vucetich, and Craig Packer Department of Ecology, Evolution, and Behavior, University of Minnesota, 1987 Upper Buford Circle, St. Paul, MN, 55108, USA, Yellowstone Center for Resources, PO Box 168, Yellowstone National Park, WY, 82190, USA, U.S. Geological Survey, Northern Prairie Wildlife Research Center, 8711 37th Street SE, Jamestown, ND, 58401, USA, and School of Forest Resources and Environmental Science, 1400 Townsend Dr., Houghton, MI, 49931, USA
منابع مشابه
Group Size Effect on the Success of Wolves Hunting
— Social foraging shows unexpected features such as the existence of a group size threshold to accomplish a successful hunt. Above this threshold, additional individuals do not increase the probability of capturing the prey. Recent direct observations of wolves (Canis lupus) in Yellowstone Park show that the group size threshold when hunting its most formidable prey, bison (Bison bison), is nea...
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An intriguing aspect of social foraging behaviour is that large groups are often no better at capturing prey than are small groups, a pattern that has been attributed to diminished cooperation (i.e., free riding) in large groups. Although this suggests the formation of large groups is unrelated to prey capture, little is known about cooperation in large groups that hunt hard-to-catch prey. Here...
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