Mechanisms of selective attention in grasshopper choruses: Who listens to whom?

W. Andy Snedden, Michael D. Greenfield, Yikweon Jang

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


In many rhythmically signaling species of acoustic insects and anurans, males form choruses at typical population densities. Recent findings that females may prefer leading calls indicate that the timing of a male's signals relative to those of neighboring choruses is an important component of mate attraction. Within a chorus, however, males cannot time their calls such that they lead all neighbors. Hence, they are expected to show selective attention toward only a subset of the group. We used field playback experiments to determine the incidence of and mechanism(s) responsible for selective attention in choruses of the territorial grasshoppers Ligurotettix coquilletti and L. planum. Our data revealed significant selective attention in both species and are inconsistent with either fixed-threshold or fixed-number mechanisms. Rather, regulation of selective attention by a sliding-threshold mechanism is supported. We discuss these results in the context of the evolution of chorus structure.

Original languageEnglish
Pages (from-to)59-66
Number of pages8
JournalBehavioral Ecology and Sociobiology
Issue number1
StatePublished - Jul 1998


  • Chorusing
  • Selective attention
  • Sexual selection


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