Individual recognition: it is good to be different. Trends Ecol Evol

Department of Ecology and Evolutionary Biology, University of Michigan, 830 N. University, Ann Arbor, MI 48109-1048, USA.
Trends in Ecology & Evolution (Impact Factor: 15.35). 11/2007; 22(10):529-37. DOI: 10.1016/j.tree.2007.09.001
Source: PubMed

ABSTRACT Individual recognition (IR) behavior has been widely studied, uncovering spectacular recognition abilities across a range of taxa and modalities. Most studies of IR focus on the recognizer (receiver). These studies typically explore whether a species is capable of IR, the cues that are used for recognition and the specializations that receivers use to facilitate recognition. However, relatively little research has explored the other half of the communication equation: the individual being recognized (signaler). Provided there is a benefit to being accurately identified, signalers are expected to actively broadcast their identity with distinctive cues. Considering the prevalence of IR, there are probably widespread benefits associated with distinctiveness. As a result, selection for traits that reveal individual identity might represent an important and underappreciated selective force contributing to the evolution and maintenance of genetic polymorphisms.

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Available from: J. Dale, Jan 07, 2015
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    Animal Cognition 07/2015; DOI:10.1007/s10071-015-0900-2 · 2.63 Impact Factor
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    • "In all social-living animals, including humans, recognition of other individuals is one of the most important social-cognitive abilities (e.g., Tibbetts and Dale 2007). "
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    SpringerPlus 07/2015; 4(1):352. DOI:10.1186/s40064-015-1147-8
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    • "The recognition of neighbours based on memorizing their repertoire leaves all the costs on the receiver's side. In situations where it is beneficial to be recognized, a species might also evolve strategies that improve individual recognition or even actively provide information about the identity in their songs (Tibbetts and Dale 2007). In this case, it will again be species with large repertoires that will face more problems in conveying information about identity quickly and effectively to receivers (Stoddard 1996). "
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