Distribution of sound pressure around a singing cricket: radiation pattern and asymmetry in the sound field

Benedict D. Chivers, Thorin Jonsson, Joseph C. Jackson, Tanja K. Kleinhappel, Nadezhda Shivarova, James F.C. Windmill, Fernando Montealgre-Z

Research output: Contribution to journalArticle

Abstract

Male field crickets generate calls to attract distant females through tegminal stridulation: the rubbing together of the overlying right wing which bears a file of cuticular teeth against the underlying left wing which carries a sclerotised scraper. During stridulation, specialised areas of membrane on both wings are set into oscillating vibrations to produce acoustic radiation. The location of females is unknown to the calling males and thus increasing effective signal range in all directions will maximise transmission effectiveness. However, producing an omnidirectional sound field of high sound pressure levels may be problematic due to the mechanical asymmetry found in this sound generation system. Mechanical asymmetry occurs by the right wing coming to partially cover the left wing during the closing stroke phase of stridulation. As such, it is hypothesised that the sound field on the left-wing side of the animal will contain lower sound pressure components than on the right-wing side as a result of this coverage. This hypothesis was tested using a novel method to accurately record a high resolution, three dimensional mapping of sound pressure levels around restrained Gryllus bimaculatus field crickets singing under pharmacological stimulation. The results indicate that a bilateral asymmetry is present across individuals, with greater amplitude components present in the right wing side of the animal. Individual variation in sound pressure to either the right or left-wing side is also observed. However, statistically significant differences in bilateral sound field asymmetry as presented here may not affect signalling in the field.
LanguageEnglish
Pages161-176
Number of pages16
JournalBioacoustics
Volume25
Issue number2
Early online date28 Dec 2015
DOIs
Publication statusPublished - 1 Feb 2016

Fingerprint

cricket
Gryllidae
asymmetry
stridulation
distribution
radiation
sound
Gryllus bimaculatus
animal
individual variation
stroke
vibration
tooth
acoustics
animals
teeth
membrane

Keywords

  • sound field
  • asymmetry
  • field cricket
  • stridulation

Cite this

Chivers, Benedict D. ; Jonsson, Thorin ; Jackson, Joseph C. ; Kleinhappel, Tanja K. ; Shivarova, Nadezhda ; Windmill, James F.C. ; Montealgre-Z, Fernando. / Distribution of sound pressure around a singing cricket : radiation pattern and asymmetry in the sound field. In: Bioacoustics. 2016 ; Vol. 25, No. 2. pp. 161-176.
@article{58593f786f744f9681b39daf8c82bce4,
title = "Distribution of sound pressure around a singing cricket: radiation pattern and asymmetry in the sound field",
abstract = "Male field crickets generate calls to attract distant females through tegminal stridulation: the rubbing together of the overlying right wing which bears a file of cuticular teeth against the underlying left wing which carries a sclerotised scraper. During stridulation, specialised areas of membrane on both wings are set into oscillating vibrations to produce acoustic radiation. The location of females is unknown to the calling males and thus increasing effective signal range in all directions will maximise transmission effectiveness. However, producing an omnidirectional sound field of high sound pressure levels may be problematic due to the mechanical asymmetry found in this sound generation system. Mechanical asymmetry occurs by the right wing coming to partially cover the left wing during the closing stroke phase of stridulation. As such, it is hypothesised that the sound field on the left-wing side of the animal will contain lower sound pressure components than on the right-wing side as a result of this coverage. This hypothesis was tested using a novel method to accurately record a high resolution, three dimensional mapping of sound pressure levels around restrained Gryllus bimaculatus field crickets singing under pharmacological stimulation. The results indicate that a bilateral asymmetry is present across individuals, with greater amplitude components present in the right wing side of the animal. Individual variation in sound pressure to either the right or left-wing side is also observed. However, statistically significant differences in bilateral sound field asymmetry as presented here may not affect signalling in the field.",
keywords = "sound field, asymmetry, field cricket, stridulation",
author = "Chivers, {Benedict D.} and Thorin Jonsson and Jackson, {Joseph C.} and Kleinhappel, {Tanja K.} and Nadezhda Shivarova and Windmill, {James F.C.} and Fernando Montealgre-Z",
year = "2016",
month = "2",
day = "1",
doi = "10.1080/09524622.2015.1124344",
language = "English",
volume = "25",
pages = "161--176",
journal = "Bioacoustics",
issn = "0952-4622",
number = "2",

}

Distribution of sound pressure around a singing cricket : radiation pattern and asymmetry in the sound field. / Chivers, Benedict D.; Jonsson, Thorin; Jackson, Joseph C.; Kleinhappel, Tanja K.; Shivarova, Nadezhda; Windmill, James F.C.; Montealgre-Z, Fernando.

In: Bioacoustics, Vol. 25, No. 2, 01.02.2016, p. 161-176.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Distribution of sound pressure around a singing cricket

T2 - Bioacoustics

AU - Chivers, Benedict D.

AU - Jonsson, Thorin

AU - Jackson, Joseph C.

AU - Kleinhappel, Tanja K.

AU - Shivarova, Nadezhda

AU - Windmill, James F.C.

AU - Montealgre-Z, Fernando

PY - 2016/2/1

Y1 - 2016/2/1

N2 - Male field crickets generate calls to attract distant females through tegminal stridulation: the rubbing together of the overlying right wing which bears a file of cuticular teeth against the underlying left wing which carries a sclerotised scraper. During stridulation, specialised areas of membrane on both wings are set into oscillating vibrations to produce acoustic radiation. The location of females is unknown to the calling males and thus increasing effective signal range in all directions will maximise transmission effectiveness. However, producing an omnidirectional sound field of high sound pressure levels may be problematic due to the mechanical asymmetry found in this sound generation system. Mechanical asymmetry occurs by the right wing coming to partially cover the left wing during the closing stroke phase of stridulation. As such, it is hypothesised that the sound field on the left-wing side of the animal will contain lower sound pressure components than on the right-wing side as a result of this coverage. This hypothesis was tested using a novel method to accurately record a high resolution, three dimensional mapping of sound pressure levels around restrained Gryllus bimaculatus field crickets singing under pharmacological stimulation. The results indicate that a bilateral asymmetry is present across individuals, with greater amplitude components present in the right wing side of the animal. Individual variation in sound pressure to either the right or left-wing side is also observed. However, statistically significant differences in bilateral sound field asymmetry as presented here may not affect signalling in the field.

AB - Male field crickets generate calls to attract distant females through tegminal stridulation: the rubbing together of the overlying right wing which bears a file of cuticular teeth against the underlying left wing which carries a sclerotised scraper. During stridulation, specialised areas of membrane on both wings are set into oscillating vibrations to produce acoustic radiation. The location of females is unknown to the calling males and thus increasing effective signal range in all directions will maximise transmission effectiveness. However, producing an omnidirectional sound field of high sound pressure levels may be problematic due to the mechanical asymmetry found in this sound generation system. Mechanical asymmetry occurs by the right wing coming to partially cover the left wing during the closing stroke phase of stridulation. As such, it is hypothesised that the sound field on the left-wing side of the animal will contain lower sound pressure components than on the right-wing side as a result of this coverage. This hypothesis was tested using a novel method to accurately record a high resolution, three dimensional mapping of sound pressure levels around restrained Gryllus bimaculatus field crickets singing under pharmacological stimulation. The results indicate that a bilateral asymmetry is present across individuals, with greater amplitude components present in the right wing side of the animal. Individual variation in sound pressure to either the right or left-wing side is also observed. However, statistically significant differences in bilateral sound field asymmetry as presented here may not affect signalling in the field.

KW - sound field

KW - asymmetry

KW - field cricket

KW - stridulation

UR - http://www.tandfonline.com/doi/full/10.1080/09524622.2015.1124344

U2 - 10.1080/09524622.2015.1124344

DO - 10.1080/09524622.2015.1124344

M3 - Article

VL - 25

SP - 161

EP - 176

JO - Bioacoustics

JF - Bioacoustics

SN - 0952-4622

IS - 2

ER -