Evolution of frequency-dependent mate choice: keeping up with fashion trends
The diversity of sexual traits favoured by females is enormous and, curiously, includes preferences for males with rare or novel phenotypes. We modelled the evolution of a preference for rarity that yielded two surprising results. First, a Fisherian 'sexy son' effect can boost female preferences to a frequency well above that predicted by mutation-selection balance, even if there are significant mortality costs for females. Preferences do not reach fixation, however, as they are subject to...[Show more]
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|Source:||Proceedings of the Royal Society of London Series B: Biological Sciences|
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