Acoustic signals, ecological features, and reproductive isolation ofgrasshoppers of the genus Dociostaurus (Orthoptera, Acrididae) insemidesert [Russian]

摘要

Acoustic signals, acoustic behavior, and some ecological features were investigated in 5 species of the genus Dociostaurus from various localities of Daghestan, Volgograd, and Astrakhan oblasts. The calling songs of D. brevicollis, D. tartarus, D. kraussi, D. albicornis, and D. anatolicus are described as well as response songs of D. brevicollis, protest songs of D. brevicollis and D. tartarus, and courtship songs of D. tartarus. A comparative analysis of calling songs in 10 species of Dociostaurus was performed. The calling songs were categorized into 4 groups by amplitude-temporal characters. The reproductive isolation between Dociostaurus species is shown not to be specified exclusively by differences in the acoustic behavior, but to be provided by some ecological mechanisms (for instance, by differences in phenology and biotopic preference).