ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2022
Wins and losses in intergroup conflicts reflect energy balance in red-tailed monkeys.
Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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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
8 citing papers in PubMed, 12 citations in OpenAlex.
- Foraging benefits of winning intergroup encounters in colobus monkeys.Primates; journal of primatology · 2026Article
- Submissive behaviour is affected by group size in a social fish.Royal Society open science · 2024Article
- Group Formation and the Evolution of Human Social Organization.Perspectives on psychological science : a journal of the Association for Psychological Science · 2024Article
- Intergroup conflict: origins, dynamics and consequences across taxa.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- Wins and losses in intergroup conflicts reflect energy balance in red-tailed monkeys.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
- Correlates of individual participation in boundary patrols by male chimpanzees.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- The effect of resource availability on interspecific competition between a native and an invasive ant.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The energetic costs and benefits of intergroup conflicts over feeding sites are widely hypothesized to be significant, but rarely quantified. In this study, we use short-term measures of energy gain and expenditure to test whether winning an intergroup encounter is associated with greater benefits, and losing with greater costs. We also test an alternative perspective, where groups fight for access to large food sources that are neither depletable nor consistently monopolizable: in this case, a group that has already fed on the resource and is willing to leave first (the loser) is supplanted by a newly arrived group (the winner). We evaluate energy balance and travel distance during and after encounters for six groups of red-tailed monkeys in Kibale National Park, Uganda. We find that winning groups experience substantial energetic benefits, but do so to recoup from earlier deficits. Losing groups, contrary to predictions, experience minimal energetic costs. Winners and losers are predictable based upon their use of the contested resource immediately before the encounter. The short-term payoffs associated with these stressful conflicts compensate for any associated costs and support the perception that between-group contests are an important feature of social life for species that engage in non-lethal conflicts. This article is part of the theme issue 'Intergroup conflict across taxa'.
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Registered trials
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