Presentation Details
| Vocal performance constraints span the three major domains of acoustic signaling Jeff Podos, Joćo Menezes. University of Massachusetts, Amherst, Massachusetts, USA |
Abstract
Acoustic communication signals are known to be shaped by limits on animals' vocal performance capacities. Traditionally, studies of vocal performance constraints, both empirically and conceptually, have focused on two main domains of acoustics, timing and frequency (and their interaction). A flurry of new studies has been focusing on the third main domain of bioacoustics, amplitude, with emerging evidence that animals are indeed constrained in how loudly they can vocalize -- with evidence for interactions between amplitude and vocal timing, frequency, and overall complexity, We here propose that the next frontier in the study of vocal constraints will be to integrate analyses of vocal variation across all three major bioacoustic domains, asking especially how constraints on the three domains interact and manifest acoustically -- and what this might all mean for vocal function. We illustrate this principle using our own studies on some of the worlds' loudest birds, the Neotropical cotingas.
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.
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