Evidence map›Paper›PMID 26543588›Full record

ArticleRoyal Society open science2015

Tools to tipple: ethanol ingestion by wild chimpanzees using leaf-sponges.

Kimberley J Hockings, Nicola Bryson-Morrison, Susana Carvalho, Michiko Fujisawa, Tatyana Humle, William C McGrew, Miho Nakamura, Gaku Ohashi, Yumi Yamanashi, Gen Yamakoshi and 1 more

Open access · goldAbstract read
In one paragraph

Article in Royal Society open science, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
5.1field-weighted citation impact, top 6% of its field
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

22 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. Article
  3. Occasional and constant exposure to dietary ethanol shortens the lifespan of worker honey bees.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2024
    Article
  4. Local genetic adaptation to habitat in wild chimpanzees.bioRxiv : the preprint server for biology · 2024
    Article
  5. Article
  6. Article
  7. Diet and the evolution ofRoyal Society open science · 2023
    Article
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  11. Article
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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

11 authors at 6 institutions in 5 countries.

Kimberley J HockingsCentre for Research in Anthropology (CRIA-FCSH/UNL) , Lisbon 1069-061, Portugal ; Anthropology Centre for Conservation, Environment and Development , Oxford Brookes University , Oxford OX3 0BP, UK.
Nicola Bryson-MorrisonSchool of Anthropology and Conservation , University of Kent , Canterbury CT2 7NR, UK.
Susana CarvalhoCenter for the Advanced Study of Hominid Paleobiology , George Washington University , Washington DC, 20052, USA ; Interdisciplinary Center for Archaeology and Evolution of Human Behavior , Universidade do Algarve , Faro 8005-139, Portugal.
Michiko FujisawaPrimate Research Institute , Kyoto University , Inuyama 484-8506, Japan ; Center for Southeast Asian Studies , Kyoto University , Kyoto 606-8501, Japan.
Tatyana HumleSchool of Anthropology and Conservation , University of Kent , Canterbury CT2 7NR, UK.
William C McGrewDepartment of Archaeology and Anthropology , University of Cambridge , Cambridge CB2 1QH, UK.
Miho NakamuraWildlife Research Center , Kyoto University , Kyoto 606-8203, Japan.
Gaku OhashiWildlife Research Center , Kyoto University , Kyoto 606-8203, Japan ; Japan Monkey Centre , Inuyama 484-0081, Japan ; Chubu University , Kasugai 487-8501, Japan.
Yumi YamanashiWildlife Research Center , Kyoto University , Kyoto 606-8203, Japan.
Gen YamakoshiCenter for African Area Studies , Kyoto University , Kyoto 606-8501, Japan.
Tetsuro MatsuzawaPrimate Research Institute , Kyoto University , Inuyama 484-8506, Japan ; Japan Monkey Centre , Inuyama 484-0081, Japan.
Kyoto University · JPUniversity of Kent · GBChubu University · JPGeorge Washington University · USOxford Brookes University · GBUniversity of Cambridge · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

African apes and humans share a genetic mutation that enables them to effectively metabolize ethanol. However, voluntary ethanol consumption in this evolutionary radiation is documented only in modern humans. Here, we report evidence of the long-term and recurrent ingestion of ethanol from the raffia palm (Raphia hookeri, Arecaceae) by wild chimpanzees (Pan troglodytes verus) at Bossou in Guinea, West Africa, from 1995 to 2012. Chimpanzees at Bossou ingest this alcoholic beverage, often in large quantities, despite an average presence of ethanol of 3.1% alcohol by volume (ABV) and up to 6.9% ABV. Local people tap raffia palms and the sap collects in plastic containers, and chimpanzees use elementary technology-a leafy tool-to obtain this fermenting sap. These data show that ethanol does not act as a deterrent to feeding in this community of wild apes, supporting the idea that the last common ancestor of living African apes and modern humans was not averse to ingesting foods containing ethanol.

Indexed as

elementary tool-useethanol ingestiongreat apesraffia palm

Identifiers

PMID26543588
PMCPMC4632552
OpenAlexW1854671734

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.