Calling and courtship songs of the rare, robust ground cricket, Allonemobius walkeri
In the original description of Allonemobius walkeri Howard & Furth, 1986, the authors describe the species’ calling songs in a table that included trill length, length of the interval between trills, pulse rate, and carrier frequency for four individuals. Further investig...
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Series: | Journal of Orthoptera Research |
Online Access: | https://jor.pensoft.net/article/63692/download/pdf/ |
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doaj-c18e145748264e8aad1e3c79c9c164632021-09-28T14:32:19ZengPensoft PublishersJournal of Orthoptera Research1937-24262021-05-01301818510.3897/jor.30.6369263692Calling and courtship songs of the rare, robust ground cricket, Allonemobius walkeriWilbur L. Hershberger0Unaffiliated In the original description of Allonemobius walkeri Howard & Furth, 1986, the authors describe the species’ calling songs in a table that included trill length, length of the interval between trills, pulse rate, and carrier frequency for four individuals. Further investigation of the acoustics of this species reveals that the calling songs are composed of syllables organized into echemes composed of a varying number of syllables, and organized into groups of echemes, of variable length. The echemes are separated by intervals of various lengths. The calling song is pleasing to the ear, with ~27 syllables per second and a carrier frequency of ~7.7 kHz at 25°C. The characteristics of the echemes and echeme intervals are significantly different when the cricket is singing in sunlight compared to darkness. In sunlight, echemes are shorter, but echeme intervals are longer. There is no effect on calling bout lengths. Courtship songs are quieter than calling songs, with a random delivery of soft and loud chirps in addition to fainter, rhythmic sounds randomly distributed between the chirps. Courtship songs are interspersed with long bouts of calling songs with displays lasting hours. https://jor.pensoft.net/article/63692/download/pdf/ |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Wilbur L. Hershberger |
spellingShingle |
Wilbur L. Hershberger Calling and courtship songs of the rare, robust ground cricket, Allonemobius walkeri Journal of Orthoptera Research |
author_facet |
Wilbur L. Hershberger |
author_sort |
Wilbur L. Hershberger |
title |
Calling and courtship songs of the rare, robust ground cricket, Allonemobius walkeri |
title_short |
Calling and courtship songs of the rare, robust ground cricket, Allonemobius walkeri |
title_full |
Calling and courtship songs of the rare, robust ground cricket, Allonemobius walkeri |
title_fullStr |
Calling and courtship songs of the rare, robust ground cricket, Allonemobius walkeri |
title_full_unstemmed |
Calling and courtship songs of the rare, robust ground cricket, Allonemobius walkeri |
title_sort |
calling and courtship songs of the rare, robust ground cricket, allonemobius walkeri |
publisher |
Pensoft Publishers |
series |
Journal of Orthoptera Research |
issn |
1937-2426 |
publishDate |
2021-05-01 |
description |
In the original description of Allonemobius walkeri Howard & Furth, 1986, the authors describe the species’ calling songs in a table that included trill length, length of the interval between trills, pulse rate, and carrier frequency for four individuals. Further investigation of the acoustics of this species reveals that the calling songs are composed of syllables organized into echemes composed of a varying number of syllables, and organized into groups of echemes, of variable length. The echemes are separated by intervals of various lengths. The calling song is pleasing to the ear, with ~27 syllables per second and a carrier frequency of ~7.7 kHz at 25°C. The characteristics of the echemes and echeme intervals are significantly different when the cricket is singing in sunlight compared to darkness. In sunlight, echemes are shorter, but echeme intervals are longer. There is no effect on calling bout lengths. Courtship songs are quieter than calling songs, with a random delivery of soft and loud chirps in addition to fainter, rhythmic sounds randomly distributed between the chirps. Courtship songs are interspersed with long bouts of calling songs with displays lasting hours. |
url |
https://jor.pensoft.net/article/63692/download/pdf/ |
work_keys_str_mv |
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