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Modulation of the temporal pattern of calling behavior of female Spodoptera littoralis by exposure to sex pheromone

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Author

Summary, in English

We have examined the timing of calling behavior in the female Egyptian cotton leafworm, Spodoptera littoralis and its modification by exposure to sex pheromone. The calling rhythm of the female moth was found to be circadian, persistent for at least 4days once it has been entrained, and could be phase shifted by altering the light:dark regime. We also found that female exposure to pheromone affected the rate and duration of calling. A brief exposure to pheromone gland extract increased the proportion of females calling in a constant dim light and this effect persisted for at least 2days. In response to pheromone exposure, significantly more females also called late into scotophase when most unexposed control females had ceased calling. The adaptive significance of responding to conspecific sex pheromone is discussed.

Publishing year

2012

Language

English

Pages

61-66

Publication/Series

Journal of Insect Physiology

Volume

58

Document type

Journal article

Publisher

Elsevier

Topic

  • Biological Sciences
  • Zoology

Status

Published

Project

  • Evolutionary mechanisms of pheromone divergence in Lepidoptera

Research group

  • Pheromone Group

ISBN/ISSN/Other

  • ISSN: 1879-1611