ArticleProceedings of the National Academy of Sciences of the United States of America2016
Formation of raiding parties for intergroup violence is mediated by social network structure.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed.
- Cognitive representations of social networks in isolated villages.Nature human behaviour · 2025Article
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- Social induction and the developmental trajectory of participation in intergroup conflict by vervet monkeys.Evolutionary human sciences · 2025Article
- Leader-follower behavioural coordination and neural synchronization during intergroup conflict.Nature human behaviour · 2023Article
- Determinants of hyena participation in risky collective action.Proceedings. Biological sciences · 2023Article
- New perspectives on the evolution of women's cooperation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023Article
- Dynamics of cooperative networks associated with gender among South Indian Tamils.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023Article
- Are strangers just enemies you have not yet met? Group homogeneity, not intergroup relations, shapes ingroup bias in three natural groups.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- Environmental stress increases out-group aggression and intergroup conflict in humans.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- Turkana warriors' call to arms: how an egalitarian society mobilizes for cattle raids.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- Intergroup conflict: origins, dynamics and consequences across taxa.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- Key individuals catalyse intergroup violence.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Review
- The polarized mind in context: Interdisciplinary approaches to the psychology of political polarization.The American psychologist · 2022Article
- Political Alliance Formation and Cooperation Networks in the Utah State Legislature.Human nature (Hawthorne, N.Y.) · 2022Article
- The Relative Importance of "Cooperative Context" and Kinship in Structuring Cooperative Behavior : A Comparative Study of Saami Reindeer Herders.Human nature (Hawthorne, N.Y.) · 2021Article
- Uncovering social-contextual and individual mental health factors associated with violence via computational inference.Patterns (New York, N.Y.) · 2021Article
- Pandemic Leadership: Sex Differences and Their Evolutionary-Developmental Origins.Frontiers in psychology · 2021Review
- Coalitions and conflict: A longitudinal analysis of men's politics.Evolutionary human sciences · 2021Article
- Within-group synchronization in the prefrontal cortex associates with intergroup conflict.Nature neuroscience · 2020Article
- Quantifying the future lethality of terror organizations.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
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6 authors.
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Abstract
Intergroup violence is common among humans worldwide. To assess how within-group social dynamics contribute to risky, between-group conflict, we conducted a 3-y longitudinal study of the formation of raiding parties among the Nyangatom, a group of East African nomadic pastoralists currently engaged in small-scale warfare. We also mapped the social network structure of potential male raiders. Here, we show that the initiation of raids depends on the presence of specific leaders who tend to participate in many raids, to have more friends, and to occupy more central positions in the network. However, despite the different structural position of raid leaders, raid participants are recruited from the whole population, not just from the direct friends of leaders. An individual's decision to participate in a raid is strongly associated with the individual's social network position in relation to other participants. Moreover, nonleaders have a larger total impact on raid participation than leaders, despite leaders' greater connectivity. Thus, we find that leaders matter more for raid initiation than participant mobilization. Social networks may play a role in supporting risky collective action, amplify the emergence of raiding parties, and hence facilitate intergroup violence in small-scale societies.
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