MNHN-SO-2023-3256 An. coluzzii // Male mosquito swarm / essaim de moustiques mâles (terrain / field) MNHN-SO-2023-3253 Grus grus - Lac du Der
Credit : Lionel Feugère

An. coluzzii // Male mosquito swarm / essaim de moustiques mâles (labo)

The sound frequencies below 450 Hz (noise) were filtered out. Associated scientific studies: Feugère, L., Gibson, G., Manoukis, N. C., Roux, O. (2021), Mosquito sound communication: are male swarms loud enough to attract females? J. R. Soc. Interface, 18:20210121. 20210121. https://doi.org/10.1098/rsif.2021.0121

mosquitoes moustiques essaim swarm Anopheles gambiae Anopheles
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Anopheles coluzzii

Feugère, L., Gibson, G., Manoukis, N. C., Roux, O. (2021), Supplementary materials. from Mosquito sound communication: are male swarms loud enough to attract females? The Royal Society. Journal contribution. https://doi.org/10.6084/m9.figshare.14354689.v1

  • Mode of identification Etude du spécimen
  • Degree of certainty (%) 100 %

Recording

  • Date of recording May 18, 2018 15:00 (Night)
  • Location of recording Chambre sourde
  • Localisation
  • Temperature 28 °C
  • Behavioural context In a ~10 meters cube arena, the decrease of light intensity elicits the takeoff of resting mosquitoes till they find a swarming visual marker located on the floor (30cm diameter black disk) on which they start flying in loops ("swarming behaviour"). The swarming mosquitoes were flying in loops 0.3 m above the floor level with a horizontal diameter of 0.2 m.
  • Habitat Laboratory
  • Habitat description The swarm of An. coluzzii males was recorded in a soundproof chamber, at the Natural Resources Institute, University of Greenwich, Chatham Maritime, UK. About 300 x 4-7 days-old males were released in the swarming arena two days before the experiment to acclimatize before their flight sounds were recorded. The standard environmental conditions in the room were: 12h:12h light:dark cycle with a 1h artificial dawn/dusk transition in light intensity, 21-28°C (warmed up to 28°C before the mosquitoes flew) and ~60-75% RH. The sound frequencies below 450 Hz (noise) were filtered out.
  • Comments 30-sec excerpt: swarm climax (70 mosquitoes). Full recording (min'sec): 0'00 none flying, 0'05 1st flying mosquito, 3'50 1st swarming mosquito, 5'52 ten swarming mosquitoes, 12'25 seventy swarming, 29'12 nineteen swarming, 36'21 five swarming, 39'29 none swarming but many flying. A field sound recording of An. coluzzii originated from the same location can be found at https://sonotheque.mnhn.fr/sounds/MNHN/SO/2023-3256.