Courtship songs of Drosophila pseudoobscura and D. persimilis: analysis of variation
Article Abstract:
The differences between Drosophila pseudoobscura and D. persimilis in high-rate repetition song interpulse interval (IPI) and intrapulse frequency and in the amount of low-rate repetition song produced were confirmed as their courtship song elements were re-analyzed. Findings showed that X-chromosome and autosomal loci both contribute to the differences in the IPI and intrapulse frequency between the two species. None of these song parameters are used by D. pseudoobscura females in species mating discrimination, while D. persimilis does not use IPI.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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The period gene controls courtship song cycles in Drosophila melanogaster
Article Abstract:
Wavelet decomposition and discrete Fourier transform were used to analyze the pulse portion of the mating song of the Drosophila melanogaster. Using these two new techniques, the presence of cycles in the interpulse intervals (IPI) of the pulse song of some individuals was confirmed and a significant effect of the per gene on cycling in IPI was found. Results shed light on courtship and species recognition, as well as on the interpretation of the nature of the circadian clock and the role of the per gene in the clock's mechanism and function.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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Absence of species discrimination in Drosophila pseudoobscura and D. persimilis males
Article Abstract:
Drosophila pseudoobscura and D. persimilis males fail to follow species discrimination in their courting behavior. Two experiments involving a choice and a no-choice condition indicate that males indiscriminately court with heterospecific females as quickly and readily as with conspecific females. Females alone disrupt the copulatory sequence of these Drosophila species. Species indiscrimination by males may be due to the fact that males are less likely to suffer from mis-mating than females.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1996
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