气候变化领域集成服务门户(CCPortal): Inbreeding depresses altruism in a cooperative society

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DOI	10.1111/ele.13578
	Inbreeding depresses altruism in a cooperative society
	Wells D.A.; Cant M.A.; Hoffman J.I.; Nichols H.J.
发表日期	2020
ISSN	1461023X
起始页码	1460
结束页码	1467
卷号	23 期号:10
英文摘要	In some animal species, individuals regularly breed with relatives, including siblings and parents. Given the high fitness costs of inbreeding, evolutionary biologists have found it challenging to understand the persistence of these inbred societies in nature. One appealing but untested explanation is that early life care may create a benign environment that offsets inbreeding depression, allowing inbred societies to evolve. We test this possibility using 21 years of data from a wild cooperatively breeding mammal, the banded mongoose, a species where almost one in ten young result from close inbreeding. We show that care provided by parents and alloparents mitigates inbreeding depression for early survival. However, as adults, inbred individuals provide less care, reducing the amount of help available to the next generation. Our results suggest that inbred cooperative societies are rare in nature partly because the protective care that enables elevated levels of inbreeding can be reduced by inbreeding depression. © 2020 The Authors. Ecology Letters published by John Wiley & Sons Ltd
关键词	alloparenting altruism cooperation evolution inbreeding mating systems sociality
英文关键词	Animalia; Mammalia; Mungos mungo; altruism; animal; breeding; evolution; inbreeding; inbreeding depression; Altruism; Animals; Biological Evolution; Breeding; Inbreeding; Inbreeding Depression
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204303
作者单位	Department of Animal Behaviour, University of Bielefeld, Postfach 100131, Bielefeld, 33501, Germany; School of Natural Science and Psychology, Liverpool John Moores University, Liverpool, L3 3AF, United Kingdom; College of Life and Environmental Sciences, University of Exeter, Penryn, TR10 9FE, United Kingdom; British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 OET, United Kingdom; Department of Biosciences, Swansea University, Swansea, SA2 8PP, United Kingdom
推荐引用方式 GB/T 7714	Wells D.A.,Cant M.A.,Hoffman J.I.,et al. Inbreeding depresses altruism in a cooperative society[J],2020,23(10).
APA	Wells D.A.,Cant M.A.,Hoffman J.I.,&Nichols H.J..(2020).Inbreeding depresses altruism in a cooperative society.Ecology Letters,23(10).
MLA	Wells D.A.,et al."Inbreeding depresses altruism in a cooperative society".Ecology Letters 23.10(2020).