Close and more distant relatives are associated with child mortality risk in historical Finland.

IF 2.2 Q1 ANTHROPOLOGY
Evolutionary Human Sciences Pub Date : 2025-01-20 eCollection Date: 2025-01-01 DOI:10.1017/ehs.2024.47
Mirkka Lahdenperä, Milla Salonen, Takayuki Hiraoka, Martin W Seltmann, Jari Saramäki, Virpi Lummaa
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引用次数: 0

Abstract

Humans are characterised as cooperative breeders, as not only the parents but also other members of the social group take part in raising offspring. The individuals who invest most in childrearing are usually the more closely related individuals. However, most studies have concentrated on close kin and the effects of more distant kin remain unknown. Here, we investigated the associations of child mortality (<5 years, n = 32,000 children) with the presence of 36 different types of relatives, divided by lineage and sex, in a historical Finnish population. We found that the presence and greater number of several paternal relatives were associated with an increase in child mortality and many of these associations were seen among the wealthiest families, due to inheritance practices and shared resources. The presence of the maternal grandmother was associated with a decrease in child mortality and the most among poorer families, who probably needed the grandmother's contribution more than the wealthy. Our results bring new insights into the importance of kin and suggest that relatives can provide support or other resources but also compete for limited resources and care. The results give a broader perspective of human family life and increase understanding of the evolution of cooperative breeding.

在芬兰历史上,近亲和远亲与儿童死亡率风险有关。
人类的特点是合作繁殖,因为不仅父母,而且社会群体的其他成员也参与抚养后代。在养育孩子方面投入最多的人通常是关系更密切的人。然而,大多数研究都集中在近亲身上,远亲的影响尚不清楚。在这里,我们调查了芬兰历史人口中36种不同类型亲属(按血统和性别划分)与儿童死亡率(n = 32,000名儿童)的关系。我们发现,父系亲属的存在和数量的增加与儿童死亡率的增加有关,而且由于继承惯例和共享资源,在最富有的家庭中可以看到许多这种关联。外祖母的存在与儿童死亡率的降低有关,并且在较贫穷的家庭中最为明显,这些家庭可能比富裕家庭更需要祖母的贡献。我们的研究结果为亲属的重要性提供了新的见解,并表明亲属可以提供支持或其他资源,但也会竞争有限的资源和照顾。这一结果为人类家庭生活提供了更广阔的视角,并增加了对合作繁殖进化的理解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Evolutionary Human Sciences
Evolutionary Human Sciences Social Sciences-Cultural Studies
CiteScore
4.60
自引率
11.50%
发文量
49
审稿时长
10 weeks
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