How cicadas interpret acoustic signals

P. J. Fonseca, D. Münch and R. M. Hennig ()
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P. J. Fonseca: Faculdade Ciências Lisboa
D. Münch: Institut für Biologie, Humboldt Universität zu Berlin
R. M. Hennig: Institut für Biologie, Humboldt Universität zu Berlin

Nature, 2000, vol. 405, issue 6784, 297-298

Abstract: Abstract The vertebrate ear can analyse the frequency components of sound with high resolution, recognizing complex acoustic signals even against a noisy background1. By contrast, insect ears can separate only broad-frequency bands, resulting in a categorical perception of sound2. We have discovered an insect, the cicada Tettigetta josei, that has a capacity for fine- frequency resolution, which could explain the evolution of frequency-modulated communication signals in cicadas.

Date: 2000
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DOI: 10.1038/35012696

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