Camouflage in a dynamic world

Research output: Contribution to journalArticle (Academic Journal)

4 Citations (Scopus)

Abstract

We review how animals conceal themselves in the face of the need to move, and how this is modulated by the dynamic components and rapidly varying illumination of natural backgrounds. We do so in a framework of minimising the viewer’s signal-tonoise ratio. Motion can match that of the observer such that there is no relative motion cue, or mimic that of background objects (e.g. swaying leaves). For group-living animals, matched motion and coloration is a special case of the latter ‘motion masquerade’, where each animal is a potential signal against the noise of other individuals. Recent research shows that dynamic illumination, such as underwater caustics or dappled forest shade, greatly impedes detection of moving targets, so may change the balance of predator-prey interactions.
Original languageEnglish
Pages (from-to)109-115
Number of pages7
JournalCurrent Opinion in Behavioral Sciences
Volume30
Early online date18 Aug 2019
DOIs
Publication statusPublished - 1 Dec 2019

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Structured keywords

  • Cognitive Science
  • Visual Perception

Keywords

  • spatial attention
  • motion detection
  • variable illumination
  • visual noise
  • motion camouflage

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