Evidence map›Paper›PMID 31842944›Full record

ArticleParasites & vectors2019

Sex aggregation and species segregation cues in swarming mosquitoes: role of ground visual markers.

Serge B Poda, Charles Nignan, Olivier Gnankiné, Roch K Dabiré, Abdoulaye Diabaté, Olivier Roux

Abstract read
In one paragraph

Article in Parasites & vectors, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. MACSFeD-a database of mosquito acoustic communication and swarming features.Database : the journal of biological databases and curation · 2024
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
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.

Serge B PodaInstitut de Recherche en Sciences de la Santé (IRSS), Bobo-Dioulasso, Burkina Faso.
Charles NignanInstitut de Recherche en Sciences de la Santé (IRSS), Bobo-Dioulasso, Burkina Faso.
Olivier GnankinéLaboratoire d'Entomologie Fondamentale et Appliquée, Unité de Formation et de Recherche en Sciences de la Vie et de la Terre (UFR-SVT), Université Ouaga I Pr. Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
Roch K DabiréInstitut de Recherche en Sciences de la Santé (IRSS), Bobo-Dioulasso, Burkina Faso.
Abdoulaye DiabatéInstitut de Recherche en Sciences de la Santé (IRSS), Bobo-Dioulasso, Burkina Faso.
Olivier RouxInstitut de Recherche en Sciences de la Santé (IRSS), Bobo-Dioulasso, Burkina Faso. olivier.roux@ird.fr.ORCID http://orcid.org/0000-0001-5440-0219

Funding

ANR ANR-15-CE35-0001-01MRC #97014
6 · The paper itself

Abstract

backgroundMating swarm segregation in closely related insect species may contribute to reproductive isolation. Visual markers are used for swarm formation; however, it is unknown whether they play a key role in swarm location, species segregation and sex aggregation.

methodsUsing two sympatric closely related species of the Anopheles gambiae complex, An. coluzzii and An. gambiae (s.s.), we investigated in both laboratory and semi-field conditions (i) whether males of the two species use visual markers (black cloths) to locate their swarm; and (ii) whether the presence/absence and size of the marker may differentially affect swarm characteristics. We also investigated whether conspecific virgin females use these markers to join male swarm sites.

resultsWe showed that males of the two species used visual markers but in different ways: An. coluzzii swarm right above the marker whereas An. gambiae (s.s.) locate their swarm at a constant distance of 76.4 ± 0.6 cm from a 20 × 20 cm marker in the laboratory setup and at 206 ± 6 cm from a 60 × 60 cm marker in the semi-field setup. Although increased marker size recruited more mosquitoes and consequently increased the swarm size in the two species, An. coluzzii swarms flew higher and were stretched both vertically and horizontally, while An. gambiae (s.s.) swarms were only stretched horizontally. Virgin females displayed a swarm-like behavior with similar characteristics to their conspecific males.

conclusionsOur results provided experimental evidence that both An. coluzzii and An. gambiae (s.s.) males use ground visual markers to form and locate their swarm at species-specific locations. Moreover, the marker size differentially affected swarm characteristics in the two species. Our results also showed that virgin females displayed a swarm-like behavior. However, these "swarms" could be due to the absence of males in our experimental conditions. Nevertheless, the fact that females displayed these "swarms" with the same characteristics as their respective males provided evidence that visual markers are used by the two sexes to join mating spots. Altogether, this suggests that visual markers and the way species and sexes use them could be key cues in species segregation, swarm location and recognition.

Indexed as

CuesSexual Behavior, AnimalVision, OcularVisual PerceptionAnimalsAnophelesFemaleMaleAnophelesMatingSexual encounterSpeciationSwarming behaviorVisual cues

Identifiers

PMID31842944
PMCPMC6916054

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.