Voice pitch predicts reproductive success in male hunter-gatherers
Voice pitch predicts reproductive success in male hunter-gatherers
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DOI：
10.1098/rsbl.2007.0410
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发表时间：
2007-12-22
期刊：
影响因子：
3.3
通讯作者：
Marlowe, F. W.
中科院分区：
文献类型：
--
作者：
Apicella, C. L.;Feinberg, D. R.;Marlowe, F. W.
声音性别二态性的进化解释的有效性取决于具有更多性别二态性声音的个体是否比具有较少性别二态性声音的个体具有更高的生殖成功率。然而，由于现代的节育方法，这些数据很少被描述，交配成功通常被用作二流的代理。在这里，我们测试是否音高预测生殖成功，出生的孩子和儿童死亡率在进化相关的狩猎采集人口。虽然我们发现音调与女性的生殖结果无关，但我们发现音调低的男性生殖成功率更高，生育的孩子更多。然而，男性的音高并不能预测儿童死亡率。这些研究结果表明，音调和男性生殖成功之间的关联是由不同的访问多产的女性介导的。此外，他们表明，目前有选择的压力，低音的声音在男子。
The validity of evolutionary explanations of vocal sexual dimorphism hinges upon whether or not individuals with more sexually dimorphic voices have higher reproductive success than individuals with less dimorphic voices. However, due to modern birth control methods, these data are rarely described, and mating success is often used as a second-rate proxy. Here, we test whether voice pitch predicts reproductive success, number of children born and child mortality in an evolutionarily relevant population of hunter-gatherers. While we find that voice pitch is not related to reproductive outcomes in women, we find that men with low voice pitch have higher reproductive success and more children born to them. However, voice pitch in men does not predict child mortality. These findings suggest that the association between voice pitch and reproductive success in men is mediated by differential access to fecund women. Furthermore, they show that there is currently selection pressure for low-pitch voices in men.