Variation, but no covariance, in female preference functions and male song in a natural population of Drosophila montana.

Michael Gordon Ritchie, M Saarikettu, A Hoikkala

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Studies of the variance and covariance between female mating preferences and sexually selected male traits in natural populations are rare. In D. montana, male courtship song is an important target of sexual selection. We analysed the variance in components of song and preferences among F-1 families from a natural population. All song traits varied substantially, with among-family variance components ranging from 30 to 65%. The greatest variation was in, carrier frequency, which is the most important predictor of mating success. This is compatible with the trait capturing mutational and other components of genetic variance in condition because of condition-dependent expression. There was also variation for some components of preference variation, with significant variation among sisters within families, and among families. Females varied in overall responsiveness, but not in the slope of the linear female preference function for male song carrier frequency. Such variation might be expected to generate assortative mating, with more choosy females mating with higher quality males, but there was no covariance across families between female responsiveness and male carrier frequency. Substantial variation in the level of responsiveness might allow low-quality males to achieve some mating success and counteract the buildup of a strong genetic covariance between preferences and traits. (c) 2005 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All tights reserved.

Original languageEnglish
Pages (from-to)849-854
Number of pages6
JournalAnimal Behaviour
Volume70
DOIs
Publication statusPublished - Oct 2005

Keywords

  • SEXUAL SELECTION
  • COURTSHIP SONG
  • MATE-CHOICE
  • MATING PREFERENCES
  • GRYLLUS-INTEGER
  • LEK PARADOX
  • ARTIFICIAL SELECTION
  • FIELD CRICKET
  • EVOLUTION
  • RECOGNITION

Fingerprint

Dive into the research topics of 'Variation, but no covariance, in female preference functions and male song in a natural population of Drosophila montana.'. Together they form a unique fingerprint.

Cite this