Evidence map›Paper›PMID 26318176›Full record

ArticlePrimates; journal of primatology2015

Variation in vervet (Chlorocebus aethiops) hair cortisol concentrations reflects ecological disturbance by humans.

Nicolaas H Fourie, Trudy R Turner, Janine L Brown, James D Pampush, Joseph G Lorenz, Robin M Bernstein

Abstract read
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In one paragraph

Article in Primates; journal of primatology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
8.5field-weighted citation impact, top 3% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. The impact of urbanisation on social behaviour: a comprehensive review.Biological reviews of the Cambridge Philosophical Society · 2026
    Pooled it
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  10. Activity and Habitat Use of Chimpanzees (International journal of primatology · 2017
    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

6 authors at 5 institutions in 2 countries.

Nicolaas H FourieBiobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Room 2N104, 10 Center Drive, Bethesda, MD, 20892, USA. fourienh@mail.nih.gov.
Trudy R TurnerDepartment of Anthropology, University of Wisconsin-Milwaukee, Milwaukee, WI, 53201, USA.
Janine L BrownSmithsonian Conservation Biology Institute, Center for Species Survival, Front Royal, VA, 22630, USA.
James D PampushDepartment of Evolutionary Anthropology, Duke University, Durham, NC, 27708, USA.
Joseph G LorenzDepartment of Anthropology and Museum Studies, Central Washington University, Ellensburg, WA, 98926, USA.
Robin M BernsteinDepartment of Anthropology, University of Colorado Boulder, Boulder, CO, 80309, USA.
Central Washington University · USDuke University · USSmithsonian Conservation Biology Institute · USUniversity of Colorado Boulder · USUniversity of the Free State · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vervet monkeys (Chlorocebus aethiops) often live in close proximity to humans. Vervets are known to raid crops, homes and gardens in suburban areas leading to human-vervet conflict. In general, primate groups with access to human foods experience increased population densities and intra-group aggression. This suggests high stress loads for vervets living in environments with high levels of human habitat disturbance and close proximity to humans. We tested the hypothesis that populations characterized by high levels of human impact are more physiologically stressed than low human impact populations, and that this increased stress would be reflected in higher concentrations of hair cortisol. We predicted that because females would be less likely to engage in high risk foraging activities, and hence keep more distance from humans than males, their hair cortisol levels should be lower than those in males. We quantified cortisol in the hair of wild caught individuals from populations that experienced different degrees of human habitat disturbance and differences in access to human food. We found that males in high human impact groups had significantly higher hair cortisol concentrations than those in low human impact groups, although this difference was not observed in female vervets. Human impacts on vervet behavioral ecology appear to be a significant source of stress for male animals in particular.

Indexed as

AggressionDietAnimalsChlorocebus aethiopsFemaleHairHumansHydrocortisoneMalePopulation DensitySex FactorsStress, PhysiologicalHydrocortisoneCortisolHairHuman foodHuman impactStressVervets

Identifiers

PMID26318176
OpenAlexW1944382963

What OpenQuestion holds

Textmetadata
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.