期刊
ANIMAL BEHAVIOUR
卷 142, 期 -, 页码 191-197出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.anbehav.2018.06.019
关键词
female choice; physical strength; sexual selection; sperm competition
资金
- ARC Centre of Excellence in Cognition and its Disorders [CE110001021]
- ARC Professorial Fellowships [DP110104594, DP0877379]
- ARC Discovery Outstanding Researcher Award [DP130102300]
Studies of sexual selection acting on physical strength in humans have focused mostly on its role in premating male-male competition. Recent theoretical frameworks suggest that male strength could be subject to trade-offs with postmating sperm competitiveness. Here, we examined whether male strength is linked to ejaculate quality. We also asked whether strength is attractive to women and affects male self-reported mating success. Perceived strength was negatively associated with ejaculate quality as predicted by the trade-off hypothesis. Perceived strength positively predicted attractiveness and both perceived strength and attractiveness shared similar variance in predicting self-reported mating success. Our findings indicate that despite the benefits to premating sexual selection, having greater strength may come at a cost to sperm competitiveness. (C) 2018 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.
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