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Quantifying an anti-bat flight response by eared moths

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Abstract:

Using near-infrared videotaping we measured the nocturnal flight times of six species of eared moths (Amphipyra pyramidoides Guenée, Caenurgina erechtea (Cramer), Feltia jaculifera (Guenée), Phlogophora periculosa Guenée, Lymantria dispar (Linné), and Ennomos magnaria Guenée) in cages in which they flew, under randomized conditions, for 3 h in the absence and 3 h in the presence of simulated bat-attack sounds. When exposed to the ultrasound, four of the six species exhibited significant reductions in total flight time ranging from 38 to 98%. We suggest that this quantified measurement of flight time will be useful for fundamental studies on the evolution and ecology of moth hearing as well as applied studies on acoustic methods of controlling moth pests.

Nous avons mesuré la durée de vol de six espèces de papillons de nuit (Amphipyra pyramidoides Guenée, Caenurgina erechtea (Cramer), Feltia jaculifera (Guenée), Phlogophora periculosa Guenée, Lymantria dispar (Linné) et Ennomos magnaria Guenée) en les filmant au magnétoscope à l'infra-rouge au cours de leur vol dans des cages, dans des conditions de randomisation, pendant 3 h en l'absence et 3 h en présence de cris d'attaque simulés de chauves-souris. Quatre espèces ont réduit significativement leur temps de vol, de 38 à 98 %, lorsqu'exposées aux ultrasons. Nous croyons que la mesure de la réduction du temps de vol pourra s'avérer utile aussi bien lors d'études fondamentales sur l'évolution et l'écologie de l'audition chez les papillons de nuit, qu'au cours de recherches appliquées de méthodes acoustiques de lutte contre les espèces nuisibles de papillons de nuit.[Traduit par la Rédaction]

Document Type: Research Article

Publication date: March 1, 2003

More about this publication?
  • Published since 1929, this monthly journal reports on primary research contributed by respected international scientists in the broad field of zoology, including behaviour, biochemistry and physiology, developmental biology, ecology, genetics, morphology and ultrastructure, parasitology and pathology, and systematics and evolution. It also invites experts to submit review articles on topics of current interest.
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