Evidence map›Paper›PMID 30157916›Full record

ArticleParasites & vectors2018

The relationship between size and longevity of the malaria vector Anopheles gambiae (s.s.) depends on the larval environment.

Antoine M G Barreaux, Chris M Stone, Priscille Barreaux, Jacob C Koella

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 2 pooled it
7.8field-weighted citation impact, top 2% 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

54 citing papers in PubMed, 2 syntheses or guidelines pooled it, 131 citations in OpenAlex.

  1. Pooled it
  2. A Systematic Review of the Effects of Temperature onInternational journal of environmental research and public health · 2021
    Pooled it
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  4. Modeling framework to demonstrate elimination of a vector population: Tsetse elimination in Chad.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  8. Geometric morphometric analysis of wing size and shape variation inJournal of advanced veterinary and animal research · 2026
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  10. Age-dependent mating dynamics, body size, and sex ratio in colonisedCurrent research in parasitology & vector-borne diseases · 2026
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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

4 authors at 3 institutions in 2 countries.

Antoine M G BarreauxCenter for Infectious Disease Dynamics and Department of Entomology, Pennsylvania State University, University Park, PA, 16802, USA. antoine.barreaux@gmail.com.ORCID http://orcid.org/0000-0001-5822-761X
Chris M StoneIllinois Natural History Survey, University of Illinois, Champaign, IL, 61820, USA.
Priscille BarreauxCenter for Infectious Disease Dynamics and Department of Entomology, Pennsylvania State University, University Park, PA, 16802, USA.
Jacob C KoellaLaboratory of Ecology and Epidemiology of Parasites, Institute of Biology, University of Neuchâtel, Rue Emile-Argand 11, 2000, Neuchâtel, Switzerland.
Pennsylvania State University · USUniversity of Illinois Urbana-Champaign · USUniversity of Neuchâtel · CH

Funding

Bill and Melinda Gates Foundation OPP1131603
6 · The paper itself

Abstract

backgroundUnderstanding the variation in vector-borne disease transmission intensity across time and space relies on a thorough understanding of the impact of environmental factors on vectorial capacity traits of mosquito populations. This is driven primarily by variation in larval development and growth, with carryover effects influencing adult traits such as longevity and adult body size. The relationship between body size and longevity strongly affects the evolution of life histories and the epidemiology of vector-borne diseases. This relationship ranges from positive to negative but the reasons for this variability are not clear. Both traits depend on a number of environmental factors, but primarily on temperature as well as availability of nutritional resources. We therefore asked how the larval environment of the mosquito Anopheles gambiae Giles (sensu stricto) (Diptera: Culicidae) affects the relationship between body size and longevity.

methodsWe reared the larvae of An. gambiae individually at three temperatures (21, 25 and 29 °C) and two food levels (the standard and 50% of our laboratory diet) and measured adult size and longevity. We estimated the direct and indirect (via adult size) effects of food and temperature on longevity with a piecewise structural equation model (SEM).

resultsWe confirmed the direct effects of food and temperature during larval development on body size, as wing length decreased with increasing temperature and decreasing food levels. While the overall relationship between size and longevity was weak, we measured striking differences among environments. At 25 °C there was no clear relationship between size and longevity; at 29 °C the association was negative with standard food but positive with low food; whereas at 21 °C it was positive with standard food but negative with low food.

conclusionsThe larval environment influences the adult's fitness in complex ways with larger mosquitoes living longer in some environments but not in others. This confirmed our hypothesis that the relationship between size and longevity is not limited to a positive correlation. A better understanding of this relationship and its mechanisms may improve the modelling of the transmission of vector borne diseases, the evolution of life history traits, and the influence of vector control.

Indexed as

Body SizeEnvironmentLongevityAnimalsAnophelesDisease VectorsFemaleFoodLarvaMalariaModels, TheoreticalMosquito VectorsTemperatureWings, AnimalAnopheles gambiaeBody sizeLarval environmentLongevityMosquito life historyPiece-wise structural equation modelling

Identifiers

PMID30157916
PMCPMC6114828
OpenAlexW2889432484

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.