Analyzing acoustic interactions in natural bullfrog (Rana catesbeiana) choruses
Publication Type: |
Journal Article |
Year of Publication: |
2008 |
Authors: |
Andrea Megela Simmons, James A. Simmons, Mary E. Bates |
Publication/Journal: |
Journal of Comparative Psychology |
Keywords: |
advertisement call, auditory scene, bullfrog, chorus, microphone array |
ISBN: |
1939-2087 0735-7036 |
Abstract:
Analysis of acoustic interactions between animals in active choruses is complex because of the large numbers of individuals present, their high calling rates, and the considerable numbers of vocalizations that either overlap or show close temporal alternation. The authors describe a methodology for recording chorus activity in bullfrogs (Rana catesbeiana) using multiple, closely spaced acoustic sensors that provide simultaneous estimates of sound direction and sound characteristics. This method provides estimates of location of individual callers, even under conditions of call overlap. This is a useful technique for understanding the complexity of the acoustic scene faced by animals vocalizing in groups