Evidence map›Paper›PMID 29410812›Full record

ArticleRoyal Society open science2018

Paternity and kin structure among neighbouring groups in wild bonobos at Wamba.

Shintaro Ishizuka, Yoshi Kawamoto, Tetsuya Sakamaki, Nahoko Tokuyama, Kazuya Toda, Hiroki Okamura, Takeshi Furuichi

Abstract read
In one paragraph

Article in Royal Society open science, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Reproductive inequality among males in the genusPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Review
  5. Article
  6. Article
  7. Article
  8. Estimating bonobo (Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. 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

7 authors.

Shintaro IshizukaPrimate Research Institute, Kyoto University, Inuyama, Aichi 484-8506, Japan.ORCID 0000-0003-2194-0387
Yoshi KawamotoPrimate Research Institute, Kyoto University, Inuyama, Aichi 484-8506, Japan.
Tetsuya SakamakiPrimate Research Institute, Kyoto University, Inuyama, Aichi 484-8506, Japan.
Nahoko TokuyamaJapan Society for the Promotion of Science, Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan.
Kazuya TodaPrimate Research Institute, Kyoto University, Inuyama, Aichi 484-8506, Japan.
Hiroki OkamuraPrimate Research Institute, Kyoto University, Inuyama, Aichi 484-8506, Japan.
Takeshi FuruichiPrimate Research Institute, Kyoto University, Inuyama, Aichi 484-8506, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although both bonobos and chimpanzees are male-philopatric species, outcomes of male-male reproductive competition seem to be more closely associated with mating success in chimpanzees. This suggests that the extent of male reproductive skew is lower in bonobos. In addition, between-group male-male reproductive competition is more lethal in chimpanzees. This suggests that between-group differentiation in male kinship is lower in bonobos. We analysed the paternity of 17 offspring in two bonobo groups and estimated the relatedness of individuals among three neighbouring groups by using DNA extracted from non-invasive samples at Wamba, in the Democratic Republic of the Congo. The alpha males sired at least nine of 17 offspring. This supports a previous finding that the male reproductive skew is higher in bonobos than that in chimpanzees. Average relatedness among males within groups was significantly higher than that among males across groups, whereas there was no significant difference among females between within and across groups. These results are consistent with male philopatry, highly skewed reproductive success of males and female dispersal. Higher average relatedness among males within groups suggest that the differences in hostility towards males of different groups between bonobos and chimpanzees may be explained by factors other than kinship.

Indexed as

bonobosgenetic differentiation between groupskin structuremale–male reproductive competitionmale philopatryreproductive skew

Identifiers

PMID29410812
PMCPMC5792889

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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.