Transmission Effects on Temporal Structure in the Advertisement Calls of Two Toads, Bufo woodhousii and Bufo valliceps

Michael J. Ryan, Brian Sullivan

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

We measured degradation of temporal structure in the advertisement calls of two species of toads (Bufo woodhousii and B. valliceps) as a function of transmission distance. Degradation, measured as the ratio of the amplitudes of pulse and interpulse interval, increased with distance and was significantly greater in B. valliceps than in B. woodhousii. These results are compared to previous reports of neural thresholds for units in the torus semicircularis that are responsive to the interaction of depth and rate of amplitude modulation in B. woodhousii and B. americanus. We suggest that the degradation of temporal structure that we measured has behavioral and neurophysiological consequences for communication. 1989 Blackwell Verlag GmbH

Original languageEnglish (US)
Pages (from-to)182-189
Number of pages8
JournalEthology
Volume80
Issue number1-4
DOIs
StatePublished - 1989
Externally publishedYes

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

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