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- Title
The Importance of Acoustic Signals in Multimodal Courtship Behavior in Drosophila virilis, D. lummei and D. littoralis.
- Authors
Belkina, Elena G.; Lazebny, Oleg E.; Vedenina, Varvara Yu.
- Abstract
The courtship rituals of Drosophila include an exchange of several signals with different modalities, chemical, visual, acoustic and tactile stimuli, between sexes. Using a video recording method, we studied the role of acoustic communication in courtship behavior in three species of the Drosophila virilis group, D. virilis, D. lummei and two populations of D. littoralis. Five series of experiments were performed: tests with intact flies (control), tests with mute flies (wingless males or females), and tests with deaf flies (aristaless males or females). We distinguished the two situations: either a female did not hear a male or vice versa, males did not hear females. When females did not hear males, the reduction in the copulation number was found in D. virilis and both populations of D. littoralis, but not in D. lummei. When males did not hear females, the reduction in the copulation number was only found in D. littoralis. The ablation of the male aristae in D. virilis and D. lummei even increased the mating success as compared to the control, which may be explained by the 'sensory overload' hypothesis. The changes in courtship temporal structure usually included the delayed onset of the main courtship elements (tapping, licking, and singing), and the variation in their duration and the total time of courtship. These effects were, however, more substantial in D. virilis and both populations of D. littoralis than in D. lummei. Thus, the effect of blocking the acoustic channel was different in the three species regardless of their phylogenetic relationship, and the role of acoustic communication in courtship behavior seemed to increase in the order D. lummei – D. virilis – D. littoralis.
- Subjects
DROSOPHILA; ANIMAL courtship; DROSOPHILA behavior; VIDEO recording; SPODOPTERA littoralis; STIMULUS &; response (Psychology)
- Publication
Journal of Insect Behavior, 2021, Vol 34, Issue 5/6, p280
- ISSN
0892-7553
- Publication type
Article
- DOI
10.1007/s10905-021-09788-8