Peahens do not prefer peacocks with more elaborate trains

Takahashi, Mariko; Arita, Hiroyuki; Hiraiwa‐Hasegawa, Mariko; Hasegawa, Toshikazu

doi:10.1016/j.anbehav.2007.10.004

Cited by 77 publications

(67 citation statements)

References 75 publications

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“…Darwin's solution, in part, to the existence of animal ornaments was the proposal that such traits as the peacock's tail evolved in response to selection via female choice. Indeed, multiple studies have demonstrated that female peahens prefer males with elaborate trains (Petrie et al 1991;reviewed in Loyau et al 2008), but others have failed to find evidence that the peacock's train is a current target of female mate choice (Takahashi et al 2008). Some other empirical studies using other animal groups have also failed to find support for the hypothesis that male ornaments are currently under intersexual selection (e.g.…”

mentioning

confidence: 93%

Enigmatic ornamentation eases male reliance on courtship performance for mating success

Hebets¹,

Stafstrom²,

Rodrı́guez³

et al. 2011

Animal Behaviour

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mentioning

confidence: 93%

Enigmatic ornamentation eases male reliance on courtship performance for mating success

Hebets¹,

Stafstrom²,

Rodrı́guez³

et al. 2011

Animal Behaviour

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“…150, 178 -181], [3, pp. 242 -243]) Examples might include the exaggerated traits of males in lekking species like the peacock [13] and the penis in female spotted hyenas [14]. Admission tickets are demanded by members of a clique as a condition for participation in the clique.…”

Section: The Mating System As a Life-history Stagementioning

confidence: 99%

The social selection alternative to sexual selection

Roughgarden

2012

Phil. Trans. R. Soc. B

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Social selection offers an alternative to sexual selection by reversing its logic. Social selection starts with offspring production and works back to mating, and starts with behavioural dynamics and works up to gene pool dynamics. In social selection, courtship can potentially be deduced as a negotiation, leading to an optimal allocation of tasks during offspring rearing. Ornaments facilitate this negotiation and also comprise ‘admission tickets’ to cliques. Mating pairs may form ‘teams’ based on the reciprocal sharing of pleasure. The parent–offspring relation can be managed by the parent considered as the owner of a ‘family firm’ whose product is offspring. The cooperation in reproductive social behaviour evolves as a mutual direct benefit through individual selection rather than as some form of altruism requiring kin or multi-level selection.

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“…Thus, the whole issue of symmetry in animals being a critical -component in biological reproductive strategies, mate selection, and survival of the species is doubtful [17]. Even in the case of the peacock's elaborate tail, the usefulness of symmetry for reproduction selection has recently been questioned [18,19], and equally doubted in other bird species [20]. Bees have been shown to successfully pollinate symmetrical as well as asymmetrical flowers [21].…”

Section: Introductionmentioning

confidence: 99%

Asymmetry and Symmetry in the Beauty of Human Faces

Zaidel

Hessamian

2010

Symmetry

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Abstract:The emphasis in the published literature has mostly been on symmetry as the critical source for beauty judgment. In fact, both symmetry and asymmetry serve as highly aesthetic sources of beauty, whether the context is perceptual or conceptual. The human brain is characterized by symbolic cognition and this type of cognition facilitates a range of aesthetic reactions. For example, both art and natural scenery contain asymmetrical elements, which nevertheless render the whole effect beautiful. A further good case in point is, in fact, human faces. Normally, faces are structurally left-right symmetrical content-wise but not size-wise or function-wise. Attractiveness has often been discussed in terms of content-wise full-face symmetry. To test whether or not attractiveness can be gleaned only from the presence of left-right full-faces we tested half faces. Three separate groups of participants viewed and rated the attractiveness of 56 full-faces (women's and men's), their 56 vertical left hemi-faces and 56 vertical right hemi-faces. We found no statistically significant differences in the attractiveness ratings of full-and hemi-faces (whether left or right). Instead, we found a strong and significant positive correlation between the ratings of the hemi-and full-faces. These results are consistent with the view that the underpinning of human facial beauty is complex and that bilateral symmetry does not constitute a principle factor in beauty assessment. We discuss that the highly evolved human brain, compared to other animals, as well as symbolic and abstract cognition in humans enable a wide variety of aesthetic reactions.

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Peahens do not prefer peacocks with more elaborate trains

Cited by 77 publications

References 75 publications

Enigmatic ornamentation eases male reliance on courtship performance for mating success

Enigmatic ornamentation eases male reliance on courtship performance for mating success

The social selection alternative to sexual selection

Asymmetry and Symmetry in the Beauty of Human Faces

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