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Nocturnal colour vision in geckos

Roth, Lina LU and Kelber, Almut LU (2004) In Royal Society of London. Proceedings B. Biological Sciences 271(Suppl. 6). p.485-487
Abstract
Nocturnal animals are said to sacrifice colour vision in favour of increased absolute sensitivity. This is true for most vertebrates that possess a dual retina with a single type of rod for colour-blind night vision and multiple types of cone for diurnal colour vision. However, among the nocturnal vertebrates, geckos are unusual because they have no rods but three cone types. Here, we show that geckos use their cones for colour vision in dim light. Two specimens of the nocturnal helmet gecko Tarentola (formerly Geckonia) chazaliae were able to discriminate blue from grey patterns by colour alone. Experiments were performed at 0.002 cd m(-2), a light intensity similar to dim moonlight. We conclude that nocturnal geckos can use cone-based... (More)
Nocturnal animals are said to sacrifice colour vision in favour of increased absolute sensitivity. This is true for most vertebrates that possess a dual retina with a single type of rod for colour-blind night vision and multiple types of cone for diurnal colour vision. However, among the nocturnal vertebrates, geckos are unusual because they have no rods but three cone types. Here, we show that geckos use their cones for colour vision in dim light. Two specimens of the nocturnal helmet gecko Tarentola (formerly Geckonia) chazaliae were able to discriminate blue from grey patterns by colour alone. Experiments were performed at 0.002 cd m(-2), a light intensity similar to dim moonlight. We conclude that nocturnal geckos can use cone-based colour vision at very dim light levels when humans rely on colour-blind rod vision. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
nocturnal vision, colour vision, gecko, cones
in
Royal Society of London. Proceedings B. Biological Sciences
volume
271
issue
Suppl. 6
pages
485 - 487
publisher
Royal Society
external identifiers
  • wos:000226100600030
  • scopus:17044437812
ISSN
1471-2954
DOI
10.1098/rsbl.2004.0227
language
English
LU publication?
yes
id
e2930251-8a90-4ad8-9121-b1b1ec386cb4 (old id 255578)
date added to LUP
2007-10-31 09:53:22
date last changed
2017-12-10 04:34:03
@article{e2930251-8a90-4ad8-9121-b1b1ec386cb4,
  abstract     = {Nocturnal animals are said to sacrifice colour vision in favour of increased absolute sensitivity. This is true for most vertebrates that possess a dual retina with a single type of rod for colour-blind night vision and multiple types of cone for diurnal colour vision. However, among the nocturnal vertebrates, geckos are unusual because they have no rods but three cone types. Here, we show that geckos use their cones for colour vision in dim light. Two specimens of the nocturnal helmet gecko Tarentola (formerly Geckonia) chazaliae were able to discriminate blue from grey patterns by colour alone. Experiments were performed at 0.002 cd m(-2), a light intensity similar to dim moonlight. We conclude that nocturnal geckos can use cone-based colour vision at very dim light levels when humans rely on colour-blind rod vision.},
  author       = {Roth, Lina and Kelber, Almut},
  issn         = {1471-2954},
  keyword      = {nocturnal vision,colour vision,gecko,cones},
  language     = {eng},
  number       = {Suppl. 6},
  pages        = {485--487},
  publisher    = {Royal Society},
  series       = {Royal Society of London. Proceedings B. Biological Sciences},
  title        = {Nocturnal colour vision in geckos},
  url          = {http://dx.doi.org/10.1098/rsbl.2004.0227},
  volume       = {271},
  year         = {2004},
}