Mass-rearing and sterilisation alter mating behaviour of male Queensland fruit fly, Bactrocera tryoni (Froggatt) (Diptera

Tephritidae)

Christopher W. Weldon*

*Corresponding author for this work

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The effects of domestication and irradiation on the mating behaviour of males of Bactrocera tryoni (Froggatt) (Diptera: Tephritidae) were investigated by caging wild, laboratory-domesticated and sterile (laboratory-domesticated, gamma-irradiated) males with wild females. Mating behaviour of mass-reared males was different from that of wild males, although behaviour of wild and sterile males was similar. Mass-reared males engaged in mounting of other males much more frequently than wild and sterile males, and began calling significantly earlier before darkness. Unnatural selection pressures imposed in mass-rearing conditions may explain these changes in mass-reared male behaviour. Male calling did not appear to be associated with female choice of mating partners, although this does not exclude the possibility that calling is a cue used by females to discriminate among mating partners. Despite differences in behaviour, frequency of successful copulations and mating success were similar among wild, mass-reared and sterile males.

Original languageEnglish
Pages (from-to)158-163
Number of pages6
JournalAustralian Journal of Entomology
Volume44
Issue number2
DOIs
Publication statusPublished - 13 May 2005

Keywords

  • Bactrocera tryoni
  • Gamma-irradiation
  • Laboratory domestication
  • Sexual selection
  • Sterile insect technique

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