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Science 6 July 1990:
Vol. 249. no. 4964, pp. 55 - 58
DOI: 10.1126/science.249.4964.55
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Articles

Synchronous, Alternating, and Phase-Locked Stridulation by a Tropical Katydid

Enrico Sismondo 1

1 22 Leedon Road, Singapore 1026, Republic of Singapore

In the field the chirps of neighboring Mecopoda sp. (Orthoptera, Tettigoniidae, and Mecopodinae) males are normally synchronized, but between more distant individuals the chirps are either synchronous or regularly alternating. The phase response to single-stimulus chirps depends on both the phase and the intensity of the stimulus. Iteration of the Poincaré map of the phase response predicts a variety of phase-locked synchronization regimes, incuding period-doubling bifurcations, in close agreement with experimental observations. The versatile acoustic behavior of Mecopoda encompasses most of the phenomena found in other synchronizing insects and thus provides a general model of insect synchronization behavior.


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Science. ISSN 0036-8075 (print), 1095-9203 (online)