Elsevier

Animal Behaviour

Volume 63, Issue 2, February 2002, Pages 397-402
Animal Behaviour

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The discriminating babbler meets the optimal diet hawk

https://doi.org/10.1006/anbe.2001.1890Get rights and content

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    If the signal decreases the expected value of the patch such that it is lower than the predator's missed opportunity costs, then the predator will leave the focal patch, resulting in successful pursuit deterrence. While previous models have considered a reduction in value of just the signaller (Getty, 2002), we consider the value of the entire patch, i.e. both prey in the patch where a signal has occurred drops considerably as a result of the signal. A signalling prey clearly benefits if the signal deters attack.

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Correspondence: T. Getty, Kellogg Biological Station, Michigan State University, Hickory Corners, MI 49060, U.S.A. (email:[email protected]).

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