Variations in advertisement call modulations do not influence vocal interactions in bullfrog choruses
Abstract
Chorusing male bullfrogs naturally vary the number of modulations within their advertisement call notes. A field playback experiment investigated whether these variations affect males' evoked vocal responses. Vocal responses were quantified manually and automatically by quantifying acoustic energy. The numbers of calls, number of notes, latency of response, and detected-note acoustic energy did not vary significantly across playback stimuli for focal males or the entire chorus, suggesting that variations in modulation number do not carry relevant information to males. Future work can determine whether modulation cues may function in sexual selection and affect female response.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 01, 2022
- Source ID
- 10.1121/10.0015070
Entities
People
- Andrea Megela Simmons
- Laura N Kloepper
Organizations
- Brown University
- National Institute on Deafness and Other Communication Disorders
- Office of Naval Research
- University of New Hampshire