Opposite-sex associations are linked with annual fitness, but sociality is stable over lifetime.
Opposite-sex associations are linked with annual fitness, but sociality is stable over lifetime.
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DOI：
10.1093/beheco/arac124
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发表时间：
2023-05
期刊：
影响因子：
--
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--
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动物的社会性，即个体与他人交往的倾向，通过配偶选择产生适应性后果，例如，直接地，通过增加潜在伴侣的数量，间接地，通过增加生存率，个体从两者中受益。每年，健身的后果是通过增加交配成功率和随后的繁殖力。然而，这些后果是否会转化为终身健康仍然是未知的。在这里，我们使用多代遗传谱系，量化了每年和一生中的社会联系及其与健康的联系。我们使用社会网络分析来计算代表个人社会性不同方面的变量。社会性表现出较高的个体内重复性。我们发现，与异性伴侣较多的鸟类相比，异性伴侣较少的鸟类具有更高的年度适应性，但这并不能转化为终身适应性。相反，对于终身健康，我们发现了稳定异性社会性选择的证据，以及一般的社会性，这表明报告的好处在野生种群中只是短暂的，选择有利于平均社会性。
Animal sociality, an individual’s propensity to associate with others, has fitness consequences through mate choice, for example, directly, by increasing the pool of prospective partners, and indirectly through increased survival, and individuals benefit from both. Annually, fitness consequences are realized through increased mating success and subsequent fecundity. However, it remains unknown whether these consequences translate to lifetime fitness. Here, we quantified social associations and their link to fitness annually and over lifetime, using a multi-generational, genetic pedigree. We used social network analysis to calculate variables representing different aspects of an individual’s sociality. Sociality showed high within-individual repeatability. We found that birds with more opposite-sex associates had higher annual fitness than those with fewer, but this did not translate to lifetime fitness. Instead, for lifetime fitness, we found evidence for stabilizing selection on opposite-sex sociality, and sociality in general, suggesting that reported benefits are only short-lived in a wild population, and that selection favors an average sociality.
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DOI：
10.1098/rspb.2020.1554
发表时间：
2020-12-23
期刊：
Proceedings. Biological sciences
影响因子：
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作者：
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DOI：
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DOI：
10.1093/beheco/arab034
发表时间：
2021-09
期刊：
Behavioral ecology : official journal of the International Society for Behavioral Ecology
影响因子：
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作者：
Beck KB;Farine DR;Kempenaers B
通讯作者：
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