Environmental effects on male courtship intensity inDrosophila pseudoobscura (Diptera: Drosophilidae)

Abstract

The courtship behavior of Drosophila males is affected by the age of the flies, the temperature and humidity, the time of day, and various intraspecific (and possibly interspecific) interactions (Hirsch and Tompkins, 1994). Courtship and mating behavior in Drosophila melanogaster has been studied extensively using various genetic mutants and manipulated genes (Hall, 1994). However, detailed genetic or environmental studies of other Drosophila species are not as prevalent. Can the results observed in D. melanogaster be generalized to the other nearly 3000 species within the genus? In this study, I examined two environmental factors in Drosophila pseudoobscura that affect male courtship in D. melanogaster: isolation and exposure to previously mated females. In Drosophila, precopulatory isolation modifies the intensity of male courtship (e.g., Maynard Smith, 1955; von Schilcher, 1976; McRobert and Tompkins, 1988), the strength of sexual isolation between species (Kim et al., 1992, 1996), and mate selection within species (e.g., Ehrman, 1990). Thus, the density of flies during storage prior to mating experiments can drastically affect the interpretations of sexual isolation or assortative mating studies. These effects should be investigated to determine how to control for these variables in Drosophila mating experiments. Drosophila pseudoobscura has been used extensively in studies of sexual

DOI: 10.1007/BF02765563

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Cite this paper

@article{Noor2007EnvironmentalEO, title={Environmental effects on male courtship intensity inDrosophila pseudoobscura (Diptera: Drosophilidae)}, author={Mohamed A F Noor}, journal={Journal of Insect Behavior}, year={2007}, volume={10}, pages={305-312} }