Abstract
We investigated habitat choice in three species of Drosophila in seven mark-release-recapture experiments. We captured and recaptured flies in two floristically distinct habitats, and released them on the ecotone between the two. We recovered a total of 3800 marked flies. D. affinis males consistently showed a slight, significant tendency to return to the habitat of capture. D. athabasca, algonquin, and D. affinis females showed no significant habitat fidelity, but did not choose differently from affinis males. Our data suggests that the choice observed is not due to differences in the physiological condition of the flies. The level of choice observed is probably too small to have an appreciable impact on gene frequencies.
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Hey, J., Houle, D. Habitat choice in the Drosophila affinis subgroup. Heredity 58, 463–471 (1987). https://doi.org/10.1038/hdy.1987.76
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DOI: https://doi.org/10.1038/hdy.1987.76
