Please use this identifier to cite or link to this item: https://doi.org/10.1007/s10750-007-9169-z
Title: Inter- and intra-specific variation in the facial colours of Perisesarma eumolpe and Perisesarma indiarum (Crustacea: Brachyura: Sesarmidae)
Authors: Huang, H.
Todd, P.A. 
Yeo, D.C.J. 
Keywords: Adobe Photoshop
Colouration
Digital photography
Mangrove crabs
Perisesarma
Sesarmidae
Issue Date: Feb-2008
Citation: Huang, H., Todd, P.A., Yeo, D.C.J. (2008-02). Inter- and intra-specific variation in the facial colours of Perisesarma eumolpe and Perisesarma indiarum (Crustacea: Brachyura: Sesarmidae). Hydrobiologia 598 (1) : 361-371. ScholarBank@NUS Repository. https://doi.org/10.1007/s10750-007-9169-z
Abstract: The colour of the characteristic facial bands in the mangrove crabs Perisesarma eumolpe (De Man) and Perisesarma indiarum (Tweedie) were investigated in relation to species, sex and size. Quantitative red/blue/green (RBG) values extracted from close-up digital photographs of 27 P. indiarum and 48 P. eumolpe specimens revealed significant differences between species and sexes. Males of both species possessed facial bands characterized by a greater intensity of blue, whereas green was more pronounced in female facial bands. It is postulated that these colour differences play a role in intra-specific sexual recognition. There existed a significant positive relationship between size and the intensity of blue in the facial bands of females of both species, suggesting these traits function as an indicator of their maturity (and possibly body condition). In large males, facial band colours contrast strongly against the surrounding mudflat and may play an important role in conspecific signalling during territorial disputes or contests over access to females. © 2007 Springer Science+Business Media B.V.
Source Title: Hydrobiologia
URI: http://scholarbank.nus.edu.sg/handle/10635/100947
ISSN: 00188158
DOI: 10.1007/s10750-007-9169-z
Appears in Collections:Staff Publications

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

SCOPUSTM   
Citations

11
checked on Sep 12, 2018

WEB OF SCIENCETM
Citations

8
checked on Sep 4, 2018

Page view(s)

47
checked on Sep 14, 2018

Google ScholarTM

Check

Altmetric


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