Evidence map›Paper›PMID 25429014›Full record

ArticleProceedings. Biological sciences2015

Interspecific competition in honeybee intracellular gut parasites is asymmetric and favours the spread of an emerging infectious disease.

Myrsini E Natsopoulou, Dino P McMahon, Vincent Doublet, John Bryden, Robert J Paxton

Abstract read
In one paragraph

Article in Proceedings. Biological sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  5. Pathogen growth and virulence dynamics drive the host evolution against coinfections.Proceedings of the National Academy of Sciences of the United States of America · 2025
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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

5 authors.

Myrsini E NatsopoulouInstitut für Biologie, Martin-Luther-Universität Halle-Wittenberg, Hoher Weg 8, Halle (Saale) 06120, Germany myrsini.natsopoulou@zoologie.uni-halle.de.
Dino P McMahonInstitut für Biologie, Martin-Luther-Universität Halle-Wittenberg, Hoher Weg 8, Halle (Saale) 06120, Germany School of Biological Sciences, MBC, Queen's University Belfast, Belfast BT9 7BL, UK Institute of Biology, Freie Universität Berlin, Schwendenerstr. 1, Berlin 14195, Germany Department for Materials and Environment, BAM Federal Institute for Materials Research and Testing, Unter den Eichen 87, Berlin 12205, Germany.
Vincent DoubletInstitut für Biologie, Martin-Luther-Universität Halle-Wittenberg, Hoher Weg 8, Halle (Saale) 06120, Germany German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, Leipzig 04103, Germany.
John BrydenSchool of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 0EX, UK.
Robert J PaxtonInstitut für Biologie, Martin-Luther-Universität Halle-Wittenberg, Hoher Weg 8, Halle (Saale) 06120, Germany School of Biological Sciences, MBC, Queen's University Belfast, Belfast BT9 7BL, UK German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, Leipzig 04103, Germany.

Funding

Wellcome Trust
6 · The paper itself

Abstract

There is increasing appreciation that hosts in natural populations are subject to infection by multiple parasite species. Yet the epidemiological and ecological processes determining the outcome of mixed infections are poorly understood. Here, we use two intracellular gut parasites (Microsporidia), one exotic and one co-evolved in the western honeybee (Apis mellifera), in an experiment in which either one or both parasites were administered either simultaneously or sequentially. We provide clear evidence of within-host competition; order of infection was an important determinant of the competitive outcome between parasites, with the first parasite significantly inhibiting the growth of the second, regardless of species. However, the strength of this 'priority effect' was highly asymmetric, with the exotic Nosema ceranae exhibiting stronger inhibition of Nosema apis than vice versa. Our results reveal an unusual asymmetry in parasite competition that is dependent on order of infection. When incorporated into a mathematical model of disease prevalence, we find asymmetric competition to be an important predictor of the patterns of parasite prevalence found in nature. Our findings demonstrate the wider significance of complex multi-host-multi-parasite interactions as drivers of host-pathogen community structure.

Indexed as

Host-Parasite InteractionsIntroduced SpeciesAnimalsBeesIntestinesNosemaSpecies SpecificityApis melliferaco-infectionhostMicrosporidiaparasitepriority effect

Identifiers

PMID25429014
PMCPMC4262169

What OpenQuestion holds

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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.