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Sensory Ecology, Behaviour, and Evolution$
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Martin Stevens

Print publication date: 2013

Print ISBN-13: 9780199601776

Published to Oxford Scholarship Online: December 2013

DOI: 10.1093/acprof:oso/9780199601776.001.0001

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Trade-Offs and Costs in Signalling

Trade-Offs and Costs in Signalling

(p.103) Chapter 7 Trade-Offs and Costs in Signalling
Sensory Ecology, Behaviour, and Evolution

Martin Stevens

Oxford University Press

This chapter explains how signalling and communication carry significant costs and trade-offs. It discusses how signals often require substantial energetic and physiological investment; how signals are exploited by eavesdroppers, including predators, parasitoids, and competitors; how animals could reduce risks of eavesdropping, including evolving less conspicuous or localisable signals, changing their behaviour, or signalling in a modality that the eavesdropper cannot detect or is insensitive to (private communication channels); and when and how signals combine multiple functions with the same signal form to perform multiple tasks.

Keywords:   signal costs, trade-offs, eavesdroppers, private communication channels, predators, parasitoids

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