ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2019
One piece of the matrilineal puzzle: the socioecology of maternal uncle investment.
Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 11 citations in OpenAlex.
- The Relationship Between Children and Their Maternal Uncles: A Unique Parenting Mode in Mosuo Culture.Frontiers in psychology · 2022Article
- Communal breeding by women is associated with lower investment from husbands.Evolutionary human sciences · 2022Article
- The expendable male hypothesis.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019Article
- Cooperation beyond consanguinity: post-marital residence, delineations of kin and social support among South Indian Tamils.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019Article
- The evolution of female-biased kinship in humans and other mammals.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019Article
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Authors and funding
2 authors at 2 institutions in 2 countries.
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Abstract
Maternal uncle relationships in which men invest resources (usually in the form of inheritance of material wealth) into their sisters' children are characteristic of matrilineal systems and hypothesized to arise under certain socioecological circumstances, but little research has systematically investigated conditions that are associated with this type of investment. We quantify relationships between household-level socioeconomic variables and different types of maternal uncle investment (direct care and indirect resource investment) within a bilateral, semi-nomadic population. Shodagor people of Bangladesh allow us to consider matrilineal behaviours in an evolutionary framework owing to their flexible social structure in which 39% of families receive some investment from a maternal uncle. Variables associated with direct maternal uncle care reflect the significance of maintaining consistent residence throughout the year and an increased need for childcare in families residing on boats versus those living on the land. Informative predictors of indirect investment indicate that a mother's birth history corresponds with more tangible contributions such as food and clothing. These results identify household-level variables specific to direct versus indirect maternal uncle investment, whereas having more older brothers or being firstborn increased the odds of a mother receiving any investment from brothers at all. Exploring these social and ecological associations in a bilateral, relatively flexible population unveils household circumstances that may lead to the development of female-biased kinship. This article is part of the theme issue 'The evolution of female-biased kinship in humans and other mammals'.
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