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Acoustical courtship signals and sexual success in irradiated Caribbean fruit flies Anastrepha suspensa Diptera Tephritidae



Acoustical courtship signals and sexual success in irradiated Caribbean fruit flies Anastrepha suspensa Diptera Tephritidae



Florida Entomologist 70.1: 103-109



The effects of radiation on the two acoustical sexual signals of the Caribbean fruit fly, Anastrepha suspensa (Loew), were examined by irradiating flies at 2.5, 5, 7.5, and 10 kR 2-26 h before emergence and noting the effects on sound production and sexual behaviours. The pulse train intervals of the calling song increased with dosage, while the propensity to produce the sound decreased. Several of the changes in the sound production of irradiated flies my make them less effective as sexual advertisements. These include increased pulse train interval, decreased calling sound propensity, and lowering of the sound frequencies. However, these measures of sexual success, time after introduction until mating, mating attempts, and mating duration showed no significant relationship with radiation dosage.

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Accession: 037214325

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DOI: 10.2307/3495096


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