Evidence map›Paper›PMID 25338066›Full record

ArticlePloS one2014

Wild chimpanzees on the edge: nocturnal activities in croplands.

Sabrina Krief, Marie Cibot, Sarah Bortolamiol, Andrew Seguya, Jean-Michel Krief, Shelly Masi

Abstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

27 citing papers in PubMed.

  1. Article
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  5. Integrating culture into primate conservation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
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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

6 authors.

Sabrina KriefUMR 7206 CNRS/MNHN/P7, Eco-anthropologie et d'ethnobiologie, Hommes, Natures, Sociétés, Museum national d'histoire naturelle, Paris, France; Projet pour la conservation des grands singes, Kibale National Park, Fort Portal, Uganda.
Marie CibotUMR 7206 CNRS/MNHN/P7, Eco-anthropologie et d'ethnobiologie, Hommes, Natures, Sociétés, Museum national d'histoire naturelle, Paris, France; Projet pour la conservation des grands singes, Kibale National Park, Fort Portal, Uganda; UMR 7179 CNRS/MNHN, Mécanismes adaptatifs: des organismes aux communautés, Ecologie et de gestion de la biodiversité, Muséum national d'histoire naturelle, Paris, France.
Sarah BortolamiolUMR 7206 CNRS/MNHN/P7, Eco-anthropologie et d'ethnobiologie, Hommes, Natures, Sociétés, Museum national d'histoire naturelle, Paris, France; Projet pour la conservation des grands singes, Kibale National Park, Fort Portal, Uganda; UMR 7533, Dynamiques Sociales et Recomposition des Espaces, Paris Diderot University, Paris, France.
Andrew SeguyaUganda Wildlife Authority, Kampala, Uganda.
Jean-Michel KriefProjet pour la conservation des grands singes, Kibale National Park, Fort Portal, Uganda.
Shelly MasiUMR 7206 CNRS/MNHN/P7, Eco-anthropologie et d'ethnobiologie, Hommes, Natures, Sociétés, Museum national d'histoire naturelle, Paris, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In a rapidly changing landscape highly impacted by anthropogenic activities, the great apes are facing new challenges to coexist with humans. For chimpanzee communities inhabiting encroached territories, not bordered by rival conspecifics but by human agricultural fields, such boundaries are risky areas. To investigate the hypothesis that they use specific strategies for incursions out of the forest into maize fields to prevent the risk of detection by humans guarding their field, we carried out video recordings of chimpanzees at the edge of the forest bordered by a maize plantation in Kibale National Park, Uganda. Contrary to our expectations, large parties are engaged in crop-raids, including vulnerable individuals such as females with clinging infants. More surprisingly chimpanzees were crop-raiding during the night. They also stayed longer in the maize field and presented few signs of vigilance and anxiety during these nocturnal crop-raids. While nocturnal activities of chimpanzees have been reported during full moon periods, this is the first record of frequent and repeated nocturnal activities after twilight, in darkness. Habitat destruction may have promoted behavioural adjustments such as nocturnal exploitation of open croplands.

Indexed as

Crops, AgriculturalAnimalsBehavior, AnimalEcosystemFemaleHumansPan troglodytesUganda

Identifiers

PMID25338066
PMCPMC4206271

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.