Please use this identifier to cite or link to this item: https://doi.org/10.1111/bij.12039
Title: Colour change and camouflage in the horned ghost crab Ocypode ceratophthalmus
Authors: Stevens, M.
Rong, C.P.
Todd, P.A. 
Keywords: Camouflage
Circadian rhythm
Colour change
Crabs
Predation
Issue Date: Jun-2013
Citation: Stevens, M., Rong, C.P., Todd, P.A. (2013-06). Colour change and camouflage in the horned ghost crab Ocypode ceratophthalmus. Biological Journal of the Linnean Society 109 (2) : 257-270. ScholarBank@NUS Repository. https://doi.org/10.1111/bij.12039
Abstract: Species that change colour present an ideal opportunity to study the control and tuning of camouflage with regards to the background. However, most research on colour-pattern change and camouflage has been undertaken with species that rapidly alter appearance (in seconds), despite the fact that most species change appearance over longer time periods (e.g. minutes, hours, or days). We investigated whether individuals of the horned ghost crab (Ocypode ceratophthalmus) from Singapore can change colour, when this occurs, and how it influences camouflage. Individuals showed a clear daily rhythm of colour change, becoming lighter during the day and darker at night, and this significantly improved their camouflage to the sand substrate upon which they live. Individuals did not change colour when put into dark conditions, but they did become brighter when placed on a white versus a black substrate. Our findings show that ghost crabs have a circadian rhythm of colour change mediating camouflage, which is fine-tuned by adaptation to the background brightness. These types of colour change can enable individuals to achieve effective camouflage under a range of environmental conditions, substrates, and time periods, and may be widespread in other species. © 2013 The Linnean Society of London.
Source Title: Biological Journal of the Linnean Society
URI: http://scholarbank.nus.edu.sg/handle/10635/100295
ISSN: 00244066
DOI: 10.1111/bij.12039
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

19
checked on Jul 17, 2018

WEB OF SCIENCETM
Citations

23
checked on Jul 17, 2018

Page view(s)

40
checked on Jun 22, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.