Behavioral Ecology and Sociobiology

, Volume 63, Issue 11, pp 1593–1602 | Cite as

Movement signal choreography unaffected by receiver distance in the Australian Jacky lizard, Amphibolurus muricatus

Original Paper

Abstract

Theory explains the structure of animal signals in the context of the receiver sensory systems, the environment through which signals travel and their information content. The influence of signalling context on movement-based signalling strategies is becoming clearer. Building upon recent findings that demonstrated changing environmental plant motion conditions resulted in a change of signalling strategy by the Australian lizard Amphibolurus muricatus, we examined whether receiver distance also influences signalling strategies. We found that signalling lizards did not modify their introductory tail flicking in response to distant viewers in the absence of competing, irrelevant plant image motion despite significant reductions in signal structure at the eye of the viewer. The magnitude of resultant effect sizes strongly suggests that receiver distance does not contribute to signalling strategies as much as the presence of motion noise in the environment.

Keywords

Amphibolurus muricatus Jacky lizard Movement-based signal Receiver distance Signal evolution Signal structure 

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Centre for Visual Sciences, Research School of Biological SciencesThe Australian National UniversityCanberraAustralia
  2. 2.Murdoch University Cetacean Research Unit, Centre for Fish and Fisheries ResearchMurdoch UniversityMurdochAustralia

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