期刊
PEST MANAGEMENT SCIENCE
卷 77, 期 5, 页码 2522-2529出版社
JOHN WILEY & SONS LTD
DOI: 10.1002/ps.6284
关键词
sterile insect technique; mating behaviour; Tephritidae; Bactrocera tryoni
资金
- Hort Frontiers Fruit Fly Fund part of the Hort Frontiers strategic partnership initiative developed by Hort Innovation [HG14033]
- Australian Research Council Industrial Transformation Training Centre (ITTC) for Fruit Fly Biosecurity Innovation - Australian Government [IC50100026]
The study found that there are spatial and temporal differences in male calling behaviors between wild and mass-reared B. tryoni, which may affect assortative mating in SIT applications. Further research is needed to investigate how environmental conditions impact calling behavior and ways to reduce differences between sterile and wild flies.
BACKGROUND: The sterile insect technique (SIT) is used in Australia to contain and eradicate outbreaks of Bactrocera tryoni (Froggatt) (Diptera: Tephritidae) in fruit-fly-free regions, and to manage populations in some endemic regions. To assess the likely impact of SIT on wild B. tryoni populations it is important to assess the colocation and synchrony of male calling between sterile and wild flies. We observed the location and timing of calling behaviours of marked mass-reared (fertile and sterile) and wild B. tryoni males in walk-in field cages. RESULTS: We found that wild males called further from the canopy centre than mass-reared (fertile or sterile) males. Mass-reared (fertile or sterile) males called earlier in the evening than wild males and, consequently, mass-reared males called when temperature and light intensity were higher than when wild males called. CONCLUSION: Male calling is a prerequisite to mating among dacine fruit flies. Therefore, our observations of spatio-temporal divergence in male calling behaviour may lead to assortative mating between mass-reared and wild B. tryoni in SIT applications. The importance of these spatio-temporal differences warrants further inquiry, with particular focus on how environmental conditions modify calling behaviour and avenues to ameliorate differences between sterile and wild flies. (c) 2021 Society of Chemical Industry
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