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首页> 外文期刊>Philosophical Transactions of the Royal Society of London, Series B. Biological Sciences >Live long and prosper: durable benefits of early-life care in banded mongooses
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Live long and prosper: durable benefits of early-life care in banded mongooses

机译：长期繁荣：带状猫鼬的早期保健的耐用利益

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摘要

Kin selection theory defines the conditions for which altruism or 'helping' can be favoured by natural selection. Tests of this theory in cooperatively breeding animals have focused on the short-term benefits to the recipients of help, such as improved growth or survival to adulthood. However, research on early-life effects suggests that there may be more durable, lifelong fitness impacts to the recipients of help, which in theory should strengthen selection for helping. Here, we show in cooperatively breeding banded mongooses (Mungos mungo) that care received in the first 3 months of life has lifelong fitness benefits for both male and female recipients. In this species, adult helpers called 'escorts' form exclusive one-to-one caring relationships with specific pups (not their own offspring), allowing us to isolate the effects of being escorted on later reproduction and survival. Pups that were more closely escorted were heavier at sexual maturity, which was associated with higher lifetime reproductive success for both sexes. Moreover, for female offspring, lifetime reproductive success increased with the level of escorting received per se, over and above any effect on body mass. Our results suggest that early-life social care has durable benefits to offspring of both sexes in this species. Given the well-established developmental effects of early-life care in laboratory animals and humans, we suggest that similar effects are likely to be widespread in social animals more generally. We discuss some of the implications of durable fitness benefits for the evolution of intergenerational helping in cooperative animal societies, including humans.
机译：亲属选择理论定义利他主义或“帮助”的条件可以通过自然选择来青睐。在合作育种动物中的这种理论的测试专注于对助剂的接受者的短期效益，例如改善成年增长或生存。然而，关于早期效果的研究表明，对帮助的接受者可能会更加耐用，终身的健身影响，从理论上应该加强帮助。在这里，我们展示了合作繁殖的猫鼬（Mungos Mungo），在生命的前3个月内收到的护理，对男性和女性接受者来说都有终身的健身益处。在这个物种中，成年助手与特定幼仔（不是他们自己的后代）独一无二的关怀关系，允许我们隔离在以后再生产和生存的影响。在性成熟时更加紧密护送的小狗在性成熟度上较重，这与两性的终身生殖成功有关。此外，对于女性后代，终身生殖成功随着护送水平的增加，通过对体重的任何效果超过任何影响。我们的研究结果表明，早期社会护理对这一物种的性别的后代具有持久的利益。鉴于在实验动物和人类的早期护理的良好发展效果，我们建议在社会动物中更普遍地普遍存在。我们讨论了耐用的健身利益对合作动物社团（包括人）的代际帮助的演变的一些影响。

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