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DOI	10.1038/s41559-021-01453-9
	Meta-analytic evidence that animals rarely avoid inbreeding
	de Boer R.A.; Vega-Trejo R.; Kotrschal A.; Fitzpatrick J.L.
发表日期	2021
ISSN	2397-334X
起始页码	949
结束页码	964
卷号	5 期号:7
英文摘要	Animals are usually expected to avoid mating with relatives (kin avoidance) as incestuous mating can lead to the expression of inbreeding depression. Yet, theoretical models predict that unbiased mating with regards to kinship should be common, and that under some conditions, the inclusive fitness benefits associated with inbreeding can even lead to a preference for mating with kin. This mismatch between empirical and theoretical expectations generates uncertainty as to the prevalence of inbreeding avoidance in animals. Here, we synthesized 677 effect sizes from 139 experimental studies of mate choice for kin versus non-kin in diploid animals, representing 40 years of research, using a meta-analytical approach. Our meta-analysis revealed little support for the widely held view that animals avoid mating with kin, despite clear evidence of publication bias. Instead, unbiased mating with regards to kinship appears widespread across animals and experimental conditions. The significance of a variety of moderators was explored using meta-regressions, revealing that the degree of relatedness and prior experience with kin explained some variation in the effect sizes. Yet, we found no difference in kin avoidance between males and females, choice and no-choice experiments, mated and virgin animals or between humans and animals. Our findings highlight the need to rethink the widely held view that inbreeding avoidance is a given in experimental studies. ? 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	animal; female; human; inbreeding; male; mate choice; meta analysis; reproduction; Animals; Female; Humans; Inbreeding; Male; Mating Preference, Animal; Reproduction
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/256924
作者单位	Department of Zoology: Ethology, Stockholm University, Stockholm, Sweden; Department of Animal Sciences: Behavioural Ecology, Wageningen University & Research, Wageningen, Netherlands
推荐引用方式 GB/T 7714	de Boer R.A.,Vega-Trejo R.,Kotrschal A.,et al. Meta-analytic evidence that animals rarely avoid inbreeding[J],2021,5(7).
APA	de Boer R.A.,Vega-Trejo R.,Kotrschal A.,&Fitzpatrick J.L..(2021).Meta-analytic evidence that animals rarely avoid inbreeding.Nature Ecology & Evolution,5(7).
MLA	de Boer R.A.,et al."Meta-analytic evidence that animals rarely avoid inbreeding".Nature Ecology & Evolution 5.7(2021).