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The roles of sensory traps in the origin, maintenance, and breakdown of mutualism
Authors:David P Edwards  Douglas W Yu
Institution:(1) Centre for Ecology, Evolution, and Conservation and School of Biological Sciences, University of East Anglia, Norwich, Norfolk, NR4 7TJ, UK
Abstract:Sensory traps are signal mimics that elicit out-of-context behaviors by exploiting the adaptive, neural responses of signal receivers. Sensory traps have long been invoked in studies of mate and prey attraction, but the possible roles of sensory traps in mutualisms (cooperation between species) have yet to be thoroughly examined. Our review identifies four candidate roles for sensory traps in the evolution of mutualistic interactions: reassembly, error reduction, enforcement, and cost reduction. A key consequence of sensory traps is that they limit the applicability of partner choice and biological market models of mutualism. We conclude by suggesting that an important research topic in the evolution of cooperation should be to identify any mechanisms that increase the truthfulness of communication between cooperating species.
Keywords:Cooperation  Cheating  Parasitism  Sexual selection  Aggressive mimicry
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