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Chorus model of the synchronizing bushcricket species Mecopoda elongata

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  • Hartbauer, Manfred

Abstract

Males of the Malaysian bushcricket species Mecopoda elongata synchronize or alternate their cyclically occurring song elements (chirps) in a duet. The acoustic interaction of males interacting in a duet was successfully simulated by means of mutually coupled song oscillators, which respond to a disturbance by a phase shift which is known from the phase response curves (PRCs) of real males. However, little is known about the acoustic interaction of males in a complex chorus situation. Therefore, the aim of the current study was to extend the duet model to a chorus taking into account an inhomogeneous spacing of agents and a natural variability of oscillator properties. This chorus model was used to study oscillator coupling in a chorus consisting of 15 agents. Since such a computer model allows one to simulate chorus manipulations that far exceed the possibilities of behaviour experiments, the following scenarios were simulated: modification of chorus density, sensory bias during sound production, selective attention to only a subset of neighbors and males joining or leaving a chorus. Simulation results allow one to draw conclusions about the chorusing behavior of males in a real chorus and about signaler and receiver aspects influencing chorusing formation and mate choice.

Suggested Citation

  • Hartbauer, Manfred, 2008. "Chorus model of the synchronizing bushcricket species Mecopoda elongata," Ecological Modelling, Elsevier, vol. 213(1), pages 105-118.
    • Handle: RePEc:eee:ecomod:v:213:y:2008:i:1:p:105-118
    DOI: 10.1016/j.ecolmodel.2007.11.010
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    References listed on IDEAS

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    1. James F. A. Poulet & Berthold Hedwig, 2002. "A corollary discharge maintains auditory sensitivity during sound production," Nature, Nature, vol. 418(6900), pages 872-876, August.
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