Does the handicap principle explain the evolution of dimorphic ornaments?

Számadó, Szabolcs and Penn, Dustin J. (2017) Does the handicap principle explain the evolution of dimorphic ornaments? Animal Behaviour. ISSN 0003-3472 (In Press)

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Abstract

Clifton et al. (2016) in recent paper argue that the handicap principle can explanation the evolution of bimodal ornament distributions. Számadó and Penn (in preparation, Does the handicap) provide a critique of this claim. They point out that the results of the Clifton et al. (2016) depends on a specific assumption about the benefits of ornamentation, namely the fact that this benefit function has an inflection point at the average ornament size. Thus, the handicap principle is neither necessary nor sufficient to explain bimodal ornament distributions.

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