Evidence map›Paper›PMID 31836840›Full record

ArticleThe ISME journal2020

Gut microbiota structure differs between honeybees in winter and summer.

Lucie Kešnerová, Olivier Emery, Michaël Troilo, Joanito Liberti, Berra Erkosar, Philipp Engel

Abstract read
In one paragraph

Article in The ISME journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 167 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
167citing papers in PubMed, 2 pooled it
–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

167 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  11. A defined community of core gut microbiota members promotes cognitive performance in honey bees.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  19. Effects of Different Diets on Gut Microbiota ofInternational journal of molecular sciences · 2026
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107 more citing papers are in PubMed but not listed here.

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.

Lucie Kešnerová *Department of Fundamental Microbiology, University of Lausanne, CH-1015, Lausanne, Switzerland.
Olivier Emery *Department of Fundamental Microbiology, University of Lausanne, CH-1015, Lausanne, Switzerland.
Michaël TroiloDepartment of Fundamental Microbiology, University of Lausanne, CH-1015, Lausanne, Switzerland.
Joanito LibertiDepartment of Fundamental Microbiology, University of Lausanne, CH-1015, Lausanne, Switzerland.
Berra Erkosar *Department of Ecology and Evolution, University of Lausanne, CH-1015, Lausanne, Switzerland.ORCID http://orcid.org/0000-0003-1152-6772
Philipp Engel *Department of Fundamental Microbiology, University of Lausanne, CH-1015, Lausanne, Switzerland. philipp.engel@unil.ch.ORCID http://orcid.org/0000-0002-4678-6200

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Adult honeybees harbor a specialized gut microbiota of relatively low complexity. While seasonal differences in community composition have been reported, previous studies have focused on compositional changes rather than differences in absolute bacterial loads. Moreover, little is known about the gut microbiota of winter bees, which live much longer than bees during the foraging season, and which are critical for colony survival. We quantified seven core members of the bee gut microbiota in a single colony over 2 years and characterized the community composition in 14 colonies during summer and winter. Our data show that total bacterial loads substantially differ between foragers, nurses, and winter bees. Long-lived winter bees had the highest bacterial loads and the lowest community α-diversity, with a characteristic shift toward high levels of Bartonella and Commensalibacter, and a reduction of opportunistic colonizers. Using gnotobiotic bee experiments, we show that diet is a major contributor to the observed differences in bacterial loads. Overall, our study reveals that the gut microbiota of winter bees is remarkably different from foragers and nurses. Considering the importance of winter bees for colony survival, future work should focus on the role of the gut microbiota in winter bee health and disease.

Indexed as

Gastrointestinal MicrobiomeAnimalsBacteriaBeesGastrointestinal TractSeasons

Identifiers

PMID31836840
PMCPMC7031341

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.