Colour change and behavioural choice facilitate chameleon prawn camouflage against different seaweed backgrounds.

ABSTRACT: Camouflage is driven by matching the visual environment, yet natural habitats are rarely uniform and comprise many backgrounds. Therefore, species often exhibit adaptive traits to maintain crypsis, including colour change and behavioural choice of substrates. However, previous work largely considered these solutions in isolation, whereas many species may use a combination of behaviour and appearance to facilitate concealment. Here we show that green and red chameleon prawns (Hippolyte varians) closely resemble their associated seaweed substrates to the vision of predatory fish, and that they can change colour to effectively match new backgrounds. Prawns also select colour-matching substrates when offered a choice. However, colour change occurs over weeks, consistent with seasonal changes i

SUBMITTER: Green SD 

PROVIDER: S-EPMC6588621 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature