Abstract
The ability to recognize individuals is common in animals; however, we know little about why the phenotypic variability necessary for individual recognition has evolved in some animals but not others. One possibility is that natural selection favours variability in some social contexts but not in others. Polistes fuscatus wasps have variable facial and abdominal markings used for individual recognition within their complex societies. Here, I explore whether social behaviour can select for variability by examining the relationship between social behaviour and variability in visual features (marking variability) across social wasp taxa. Analysis using a concentrated changes test demonstrates that marking variability is significantly associated with nesting strategy. Species with flexible nest-founding strategies have highly variable markings, whereas species without flexible nest-founding strategies have low marking variability. These results suggest that: (i) individual recognition may be widespread in the social wasps, and (ii) natural selection may play a role in the origin and maintenance of the variable distinctive markings. Theoretical and empirical evidence suggests that species with flexible nesting strategies have reproductive transactions, a type of complex social behaviour predicted to require individual recognition. Therefore, the reproductive transactions of flexible species may select for highly variable individuals who are easy to identify as individuals. Further, selection for distinctiveness may provide an alternative explanation for the evolution of phenotypic diversity.
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Selected References
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- Barnard C. J., Burk T. Dominance hierarchies and the evolution of "individual recognition". J Theor Biol. 1979 Nov 7;81(1):65–73. doi: 10.1016/0022-5193(79)90081-x. [DOI] [PubMed] [Google Scholar]
- Crowley P. H., Provencher L., Sloane S., Dugatkin L. A., Spohn B., Rogers L., Alfieri M. Evolving cooperation: the role of individual recognition. Biosystems. 1996;37(1-2):49–66. doi: 10.1016/0303-2647(95)01546-9. [DOI] [PubMed] [Google Scholar]
- Gamboa G. J. Intraspecific defense: advantage of social cooperation among paper wasp foundresses. Science. 1978 Mar 31;199(4336):1463–1465. doi: 10.1126/science.199.4336.1463. [DOI] [PubMed] [Google Scholar]
- doi: 10.1098/rspb.1997.0215. [DOI] [PMC free article] [Google Scholar]
- Reeve H. K., Keller L. Tests of reproductive-skew models in social insects. Annu Rev Entomol. 2001;46:347–385. doi: 10.1146/annurev.ento.46.1.347. [DOI] [PubMed] [Google Scholar]
- Reeve H. K., Starks P. T., Peters J. M., Nonacs P. Genetic support for the evolutionary theory of reproductive transactions in social wasps. Proc Biol Sci. 2000 Jan 7;267(1438):75–79. doi: 10.1098/rspb.2000.0969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Reeve HK. A Transactional Theory of Within-Group Conflict. Am Nat. 2000 Mar;155(3):365–382. doi: 10.1086/303322. [DOI] [PubMed] [Google Scholar]
- Tibbetts Elizabeth A. Visual signals of individual identity in the wasp Polistes fuscatus. Proc Biol Sci. 2002 Jul 22;269(1499):1423–1428. doi: 10.1098/rspb.2002.2031. [DOI] [PMC free article] [PubMed] [Google Scholar]
- van Rhijn J. G., Vodegel R. Being honest about one's intentions: an evolutionary stable strategy for animal conflicts. J Theor Biol. 1980 Aug 21;85(4):623–641. doi: 10.1016/0022-5193(80)90261-1. [DOI] [PubMed] [Google Scholar]