Wednesday, 20 November 2002

This presentation is part of : Display Presentations, Subsection Cd. Behavior and Ecology

Efficacy of courtship as a pre-zygotic isolating mechanism in crickets

David A. Gray, Department of Biology, California State University Northridge, Department of Biology, 18111 Nordhoff Street, Northridge, CA

Taxonomists working with acoustic insects often rely heavily on differences in long-distance mating signals to identify species. Behavioral work has shown that female insects also rely on such cues. The extent to which species-level isolation may result from short-range cues distinct from the long-range cues has been comparatively neglected. Previous work has shown that the short-range courtship songs of the sister species Gryllus texensis and G. rubens (Orthoptera, Gryllidae) show significant divergence at the species level. Here I report the results of behavioral trials assessing mating isolation as a function of courtship.

Species 1: Orthoptera Gryllidae Gryllus rubens
Species 2: Orthoptera Gryllidae Gryllus texensis
Keywords: courtship, speciation

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