| Sound radiation and wing mechanics in stridulating field crickets (Orthoptera: Gryllidae). | |
| | |
MedLine Citation:
|
PMID: 21613528 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
Male field crickets emit pure-tone mating calls by rubbing their wings together. Acoustic radiation is produced by rapid oscillations of the wings, as the right wing (RW), bearing a file, is swept across the plectrum borne on the left wing (LW). Earlier work found the natural resonant frequency (f(o)) of individual wings to be different, but there is no consensus on the origin of these differences. Previous studies suggested that the frequency along the song pulse is controlled independently by each wing. It has also been argued that the stridulatory file has a variable f(o) and that the frequency modulation observed in most species is associated with this variability. To test these two hypotheses, a method was developed for the non-contact measurement of wing vibrations during singing in actively stridulating Gryllus bimaculatus. Using focal microinjection of the neuroactivator eserine into the cricket's brain to elicit stridulation and micro-scanning laser Doppler vibrometry, we monitored wing vibration in actively singing insects. The results show significantly lower f(o) in LWs compared with RWs, with the LW f(o) being identical to the sound carrier frequency (N=44). But during stridulation, the two wings resonate at one identical frequency, the song carrier frequency, with the LW dominating in amplitude response. These measurements also demonstrate that the stridulatory file is a constant resonator, as no variation was observed in f(o) along the file during sound radiation. Our findings show that, as they engage in stridulation, cricket wings work as coupled oscillators that together control the mechanical oscillations generating the remarkably pure species-specific song. |
| | |
Authors:
|
Fernando Montealegre-Z; Thorin Jonsson; Daniel Robert |
Related Documents
:
|
22730588 - On the implications of bistability of visual pigment systems. 20404688 - Concealed neuroanatomy in michelangelo's separation of light from darkness in the sisti... 18943338 - Cocultures of peronospora tabacina and nicotiana species to study host-pathogen interac... 1242278 - Normal values in clinical electrooculography. 1. material, method, methodological inves... 18767418 - Music acupuncture stimulation method. 15244898 - Transient characteristics of chaos synchronization in a semiconductor laser subject to ... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: The Journal of experimental biology Volume: 214 ISSN: 1477-9145 ISO Abbreviation: J. Exp. Biol. Publication Date: 2011 Jun |
Date Detail:
|
Created Date: 2011-05-26 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0243705 Medline TA: J Exp Biol Country: England |
Other Details:
|
Languages: eng Pagination: 2105-17 Citation Subset: IM |
Affiliation:
|
School of Biological Sciences, University of Bristol, Woodland Road, Bristol BS8 1UG, UK. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Involvement of redox- and phosphorylation-dependent pathways in osmotic adaptation in sperm cells of...
Next Document: Low external environmental calcium levels prevent forgetting in Lymnaea.