High e-vector acuity in the polarisation vision system of the fiddler crab Uca vomeris

How, Martin J., Pignatelli, Vincenzo, Temple, Shelby E., Marshall, N. Justin and Hemmi, Jan M. (2012) High e-vector acuity in the polarisation vision system of the fiddler crab Uca vomeris. The Journal of Experimental Biology, 215 12: 2128-2134. doi:10.1242/jeb.068544

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Author How, Martin J.
Pignatelli, Vincenzo
Temple, Shelby E.
Marshall, N. Justin
Hemmi, Jan M.
Total Author Count Override 5
Title High e-vector acuity in the polarisation vision system of the fiddler crab Uca vomeris
Formatted title
High e-vector acuity in the polarisation vision system of the fiddler crab Uca vomeris
Journal name The Journal of Experimental Biology   Check publisher's open access policy
ISSN 0022-0949
1477-9145
Publication date 2012-06
Sub-type Article (original research)
DOI 10.1242/jeb.068544
Open Access Status File (Publisher version)
Volume 215
Issue 12
Start page 2128
End page 2134
Total pages 7
Place of publication Cambridge, United Kingdom
Publisher The Company of Biologists
Collection year 2013
Language eng
Formatted abstract
Polarisation vision is used by a variety of species in many important tasks, including navigation and orientation (e.g. desert ant), communication and signalling (e.g. stomatopod crustaceans), and as a possible substitute for colour vision (e.g. cephalopod molluscs). Fiddler crabs are thought to possess the anatomical structures necessary to detect polarised light, and occupy environments rich in polarisation cues. Yet little is known about the capabilities of their polarisation sense. A modified polarisation-only liquid crystal display and a spherical rotating treadmill were combined to test the responses of fiddler crabs to moving polarisation stimuli. The species Uca vomeris was found to be highly sensitive to polarised light and detected stimuli differing in e-vector angle by as little as 3.2 deg. This represents the most acute behavioural sensitivity to polarised light yet measured for a crustacean. The occurrence of null points in their discrimination curve indicates that this species employs an orthogonal (horizontal/vertical) receptor array for the detection of polarised light.
Keyword e-vector discrimination
Compound eye
Predation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Brain Institute Publications
Official 2013 Collection
School of Biomedical Sciences Publications
 
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