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- W2024889600 abstract "Abstract Recognition of group‐members is a key feature of sociality. Ants use chemical communication to discriminate nestmates from intruders, enhancing kin cooperation and preventing parasitism. The recognition code is embedded in their cuticular chemical profile, which typically varies between colonies. We predicted that ants might be capable of accurate recognition in unusual situations when few individuals interact repeatedly, as new colonies started by two to three queens. Individual recognition would be favoured by selection when queens establish dominance hierarchies, because repeated fights for dominance are costly; but it would not evolve in absence of hierarchies. We previously showed that Pachycondyla co‐founding queens, which form dominance hierarchies, have accurate individual recognition based on chemical cues. Here, we used the ant Lasius niger to test the null hypothesis that individual recognition does not occur when co‐founding queens do not establish dominance hierarchies. Indeed, L. niger queens show a similar level of aggression towards both co‐foundresses and intruders, indicating that they are unable of individual recognition, contrary to Pachycondyla . Additionally, the variation in chemical profiles of Lasius and Pachycondyla queens is comparable, thus informational constraints are unlikely to apply. We conclude that selection pressure from the social context is of crucial significance for the sophistication of recognition systems." @default.
- W2024889600 created "2016-06-24" @default.
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- W2024889600 date "2009-02-19" @default.
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- W2024889600 title "Social context predicts recognition systems in ant queens" @default.
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- W2024889600 doi "https://doi.org/10.1111/j.1420-9101.2008.01668.x" @default.
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