The Auditory-Vibratory Sensory System in Bushcrickets (Tettigoniidae, Ensifera, Orthoptera) II. Signal Production and Acoustic Behavior

Kalmring, Klaus; Jatho, Martin; Hoffmann, É; Stiedl, Oliver; Schul, Johannes; Schröder, Holger; Stephens, R.B.L.; Hartley, C. P.

doi:10.1007/978-3-642-56096-5_10

Cited by 2 publications

(2 citation statements)

References 45 publications

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“…: Kalmring et al 1990;Stumpner & Heller 1992;Heinrich & Kalmring 1993, Schul & Patterson 2003. The minimal threshold, however, seems to be slightly shifted towards lower frequencies compared to most other tettigoniids.…”

Section: Hearingmentioning

confidence: 73%

“…The huge, inflated tegmina would allow the subtegminal air volume to be large enough to amplify the low frequencies resulting from the vibration of the large mirror and the associated structures (for a summary of sound production see Kalmring et al 2003). As in many tettigoniids the tooth impacts fuse with each other resulting in a typical 'combination of "non-resonant" and "resonant" sound production' (Kalmring et al 2003). At such low frequencies and low damping, even impulses separated by relatively large intervals may fuse.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

SINGING AND HEARING INAEROTEGMINA KILIMANDJARICA(TETTIGONIIDAE: HEXACENTRINAE), A SPECIES WITH UNUSUAL LOW CARRIER FREQUENCY OF THE CALLING SONG

Heller

Ostrowski²,

Hemp

2010

Bioacoustics

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Section: Hearingmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 99%

SINGING AND HEARING INAEROTEGMINA KILIMANDJARICA(TETTIGONIIDAE: HEXACENTRINAE), A SPECIES WITH UNUSUAL LOW CARRIER FREQUENCY OF THE CALLING SONG

Heller

Ostrowski²,

Hemp

2010

Bioacoustics

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Chamber music – An unusual Helmholtz resonator for song amplification in a Neotropical bush-cricket (Orthoptera, Tettigoniidae)

Jonsson¹,

Chivers²,

Brown

et al. 2017

Journal of Experimental Biology

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We use laser vibrometry, micro computed tomography and finite element modelling to show that an unusual pronotal inflation covering the wings of a bush-cricket acts as a Helmholtz resonator. AbstractAnimals use sound for communication, with high-amplitude signals being selected for attracting mates or deterring rivals. High amplitudes are attained by employing primary resonators in sound producing structures to amplify the signal (e.g., avian syrinx). Some species actively exploit acoustic properties of natural structures to enhance signal transmission by using these as secondary resonators (e.g., tree-hole frogs). Male bush-crickets produce sound by tegminal stridulation and often use specialised wing areas as primary resonators. Interestingly, Acanthacara acuta, a Neotropical bush-cricket, exhibits an unusual pronotal inflation, forming a chamber covering the wings. It has been suggested that such pronotal chambers enhance amplitude and tuning of the signal by constituting a (secondary) Helmholtz resonator. If true, the intact system -when stimulated sympathetically with broadband sound -should show clear resonance around the song carrier frequency which should be largely independent of pronotum material, and change when the system is destroyed. Using laser Doppler vibrometry on living and preserved specimens, micro computed tomography, 3D printed models, and finite element modelling, we show that the pronotal chamber not only functions as a Helmholtz resonator due to its intact morphology but also resonates at frequencies of the calling song on itself, making song production a three-resonator system.

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The Auditory-Vibratory Sensory System in Bushcrickets (Tettigoniidae, Ensifera, Orthoptera) II. Signal Production and Acoustic Behavior

Cited by 2 publications

References 45 publications

SINGING AND HEARING INAEROTEGMINA KILIMANDJARICA(TETTIGONIIDAE: HEXACENTRINAE), A SPECIES WITH UNUSUAL LOW CARRIER FREQUENCY OF THE CALLING SONG

SINGING AND HEARING INAEROTEGMINA KILIMANDJARICA(TETTIGONIIDAE: HEXACENTRINAE), A SPECIES WITH UNUSUAL LOW CARRIER FREQUENCY OF THE CALLING SONG

Chamber music – An unusual Helmholtz resonator for song amplification in a Neotropical bush-cricket (Orthoptera, Tettigoniidae)

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