Evidence map›Paper›PMID 33483482›Full record

ArticleNature communications2021

Group-level cooperation in chimpanzees is shaped by strong social ties.

Liran Samuni, Catherine Crockford, Roman M Wittig

Abstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed.

  1. Article
  2. Article
  3. The dynamics of cooperation in asymmetric public goods games.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Bonobos respond aversively to unequal reward distributions.Proceedings. Biological sciences · 2025
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Group-level signatures in bonobo sociality.Evolutionary human sciences · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Reproductive inequality among males in the genusPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Liran SamuniMax Planck Institute for Evolutionary Anthropology, 04103, Leipzig, Germany. liran_samuni@eva.mpg.de.ORCID http://orcid.org/0000-0001-7957-6050
Catherine CrockfordMax Planck Institute for Evolutionary Anthropology, 04103, Leipzig, Germany.
Roman M WittigMax Planck Institute for Evolutionary Anthropology, 04103, Leipzig, Germany.ORCID http://orcid.org/0000-0001-6490-4031

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Humans maintain extensive social ties of varying preferences, providing a range of opportunities for beneficial cooperative exchange that may promote collective action and our unique capacity for large-scale cooperation. Similarly, non-human animals maintain differentiated social relationships that promote dyadic cooperative exchange, but their link to cooperative collective action is little known. Here, we investigate the influence of social relationship properties on male and female chimpanzee participations in a costly form of group action, intergroup encounters. We find that intergroup encounter participation increases with a greater number of other participants as well as when participants are maternal kin or social bond partners, and that these effects are independent from one another and from the likelihood to associate with certain partners. Together, strong social relationships between kin and non-kin facilitate group-level cooperation in one of our closest living relatives, suggesting that social bonds may be integral to the evolution of cooperation in our own species.

Indexed as

Social BehaviorSocial DominanceAnimalsBehavior, AnimalCooperative BehaviorFemaleGroup ProcessesHumansMalePan troglodytes

Identifiers

PMID33483482
PMCPMC7822919

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.