ArticleBiology letters2018
Inclusive fitness for in-laws.
Article in Biology letters, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
14 citing papers in PubMed, 35 citations in OpenAlex.
- Daughters-in-law and mothers-in-law in lowland rural Nepal: The balance of power and health outcomes.Evolution, medicine, and public health · 2026Article
- Religiosity and gender bias structure social networks.Evolutionary human sciences · 2024Article
- Starting from scratch in a patrilocal society: how women build networks after marriage in rural Bangladesh.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023Article
- Maternal mental health and economic autonomy in lowland rural Nepal: Do parents-in-law provide constraint or support?Evolution, medicine, and public health · 2023Article
- Mandrill mothers associate with infants who look like their own offspring using phenotype matching.eLife · 2022Article
- Social Support and Network Formation in a Small-Scale Horticulturalist Population.Scientific data · 2022Article
- Social ties in the Congo Basin: insights into tropical forest adaptation from BaYaka and their neighbours.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Review
- The origins of human cumulative culture: from the foraging niche to collective intelligence.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- Associations of age at marriage and first pregnancy with maternal nutritional status in Nepal.Evolution, medicine, and public health · 2022Article
- The evolution of altruism through war is highly sensitive to population structure and to civilian and fighter mortality.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- In-Law Relationships in Evolutionary Perspective: The Good, the Bad, and the Ugly.Frontiers in sociology · 2021Article
- Relatedness within and between Agta residential groups.Evolutionary human sciences · 2021Article
- Testing adaptive hypotheses of alloparenting in Agta foragers.Nature human behaviour · 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
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cooperation among kin is common across the natural world and can be explained in terms of inclusive fitness theory, which holds that individuals can derive indirect fitness benefits from aiding genetically related individuals. However, human kinship includes not only genetic kin but also kin by marriage: our affines (in-laws) and spouses. Can cooperation between these genetically unrelated kin be reconciled with inclusive fitness theory? Here, we argue that although affinal kin and spouses do not necessarily share genetic ancestry, they may have shared genetic interests in future reproduction and, as such, can derive indirect fitness benefits though cooperating. We use standard inclusive fitness theory to derive a coefficient of shared reproductive interest (
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