Evidence map›Paper›PMID 35698161›Full record

ArticleParasites & vectors2022

Diversity of larval habitats of Anopheles mosquitoes in urban areas of Benin and influence of their physicochemical and bacteriological characteristics on larval density.

Donald Hessou-Djossou, Innocent Djègbè, Koffi Mensah Ahadji-Dabla, Odilon M Nonfodji, Geneviève Tchigossou, Rousseau Djouaka, Sylvie Cornelie, Luc Djogbenou, Martin Akogbeto, Fabrice Chandre

Abstract read
In one paragraph

Article in Parasites & vectors, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

  1. Article
  2. Physicochemical Properties ofTropical medicine and infectious disease · 2026
    Article
  3. Article
  4. Diversity ofInsects · 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

10 authors.

Donald Hessou-DjossouDépartement des Sciences de la Vie et de la Terre, Ecole Normale Supérieure de Natitingou, Université Nationale des Sciences, Technologie, Ingénierie et Mathématiques (UNSTIM), Natitingou, Bénin.
Innocent DjègbèDépartement des Sciences de la Vie et de la Terre, Ecole Normale Supérieure de Natitingou, Université Nationale des Sciences, Technologie, Ingénierie et Mathématiques (UNSTIM), Natitingou, Bénin. djegbe1@yahoo.fr.
Koffi Mensah Ahadji-DablaLaboratoire d'Ecologie et d'Ecotoxicologie (LaEE), Département de Zoologie, Faculté des Sciences, Université de Lomé, Lomé, Togo.
Odilon M NonfodjiDépartement des Sciences de la Vie et de la Terre, Ecole Normale Supérieure de Natitingou, Université Nationale des Sciences, Technologie, Ingénierie et Mathématiques (UNSTIM), Natitingou, Bénin.
Geneviève TchigossouPlateforme Agriculture Environnement Santé, Institut International d'Agriculture Tropicale (IITA-Bénin), Cotonou, Bénin.
Rousseau DjouakaPlateforme Agriculture Environnement Santé, Institut International d'Agriculture Tropicale (IITA-Bénin), Cotonou, Bénin.
Sylvie CornelieMaladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle (MIVEGEC), UMR IRD 224-CNRS 5290-Université de Montpellier 2, Montpellier Cedex 5, France.
Luc DjogbenouInstitut Régional de Santé Publique (IRSP), Université d'Abomey-Calavi (UAC), Ouidah, Bénin.
Martin AkogbetoCentre de Recherche Entomologique de Cotonou (CREC), Ministère de la Santé, Cotonou, Bénin.
Fabrice ChandreMaladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle (MIVEGEC), UMR IRD 224-CNRS 5290-Université de Montpellier 2, Montpellier Cedex 5, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe implementation of anti-larval strategies in the fight against malaria vectors requires fundamental knowledge of their oviposition sites. The aim of this study was to assess the spatial and temporal distribution of Anopheles breeding sites as well as the influence of abiotic and biotic factors on the proliferation of larvae in urban and non-urban areas of Benin.

methodsSampling of Anopheles larvae was carried out during the rainy and dry seasons in urbanized and non-urbanized areas of the cities of Cotonou, Bohicon, Parakou, and Natitingou in Benin. The Anopheles larval breeding sites were georeferenced and characterized by their nature, type, physicochemical (pH, temperature, dissolved oxygen, conductivity, turbidity, salinity) and biological attributes (larval density and coliform density).

resultsA total of 198 positive breeding sites for Anopheles larvae were identified, comprising 163 (82.3%) in the rainy season and 35 (17.7%) in the dry season. Out of these larval habitats, 61.9% were located in urbanized areas, and were predominantly puddles. Principal component analysis revealed a high positive correlation of larval density with temperature and dissolved oxygen, and with salinity in the coastal zone. In addition, cross-sectional analysis of the microbiological results with larval density showed a significant negative correlation between larval productivity and faecal coliform load.

conclusionsThis study indicated the presence of multiple larval habitats of Anopheles in the urban areas which were created through human activities, and associations between larval density and intrinsic factors of the habitats such as temperature, dissolved oxygen and faecal coliform load. This type of information may be useful for the implementation of appropriate control strategies in urban areas, including regulation of the human activities that lead to the creation of breeding sites, proper environmental management and targeted larvicidal use.

Indexed as

AnophelesAnimalsBeninCross-Sectional StudiesEcosystemFemaleHumansLarvaMosquito VectorsOxygenOxygenAnophelesEcologyFaecal coliformsLarval densityPhysicochemical parameters

Identifiers

PMID35698161
PMCPMC9195272

What OpenQuestion holds

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LicenceCC BY
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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.