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Journal of Experimental Biology 61,345-355 (1974)
Published by Company of Biologists 1974

The Effect of Acoustic Signals on the Chirp Rhythm in the Bush Cricket Pholidoptera Griseoaptera

M. D. R. JONES 1

1 Zoologisches Institut der Universität zu Köln, Lehrstuhl für Tierphysiologie; School of Biological Sciences, University of Sussex, Brighton, BN1 9QG, England

The effect of acoustic signals on the control of chirp production has been investigated using the insect's own chirp to trigger artificial sound signals (100 msec, 70dB, 12 or 15 kHz) at predetermined phases of the chirp cycle. The signals appear to reset the phase of the chirp rhythm generator, and signals given late in the cycle are followed by the greatest phase shifts. The signals may also have excitatory after-effects which are usually small, but can summate to give a slow, longer lasting increase in chirp rate. This appears to happen during alternation with a natural or artificial partner.

Submitted on February 5, 1974






© The Company of Biologists Ltd 1974