Bioacoustics, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 20
Published: Dec. 18, 2024
Acoustic signals have stereotyped features that serve numerous functions in communication. Stereotypy by itself, however, is insufficient evidence of function. In this study the eastern grey treefrog (H. versicolor), we tested hypotheses a acoustic property advertisement calls sound pattern recognition and auditory grouping. Male H. versicolor produce pulsatile to attract females. Each pulse comprises two harmonics invariably sweep upwards frequency. series two-alternative phonotaxis tests, females were given choices between standard call with natural upward-sweeping, within-pulse frequency modulation (FM) an alternative which FM was manipulated. Manipulations included elimination reversals direction (testing role upward-sweeping recognition) incoherence coherent grouping). Females showed no preferences for having within pulses. This result suggests invariant irrelevant grouping context mate selection. Possible mechanistic constraints are discussed.
Language: Английский