Unexpectedly low UV-sensitivity in a bird, the budgerigar.
(2014) In Biology letters 10(11).- Abstract
- Photoreceptor adaptation ensures appropriate visual responses during changing light conditions and contributes to colour constancy. We used behavioural tests to compare UV-sensitivity of budgerigars after adaptation to UV-rich and UV-poor backgrounds. In the latter case, we found lower UV-sensitivity than expected, which could be the result of photon-shot noise corrupting cone signal robustness or nonlinear background adaptation. We suggest that nonlinear adaptation may be necessary for allowing cones to discriminate UV-rich signals, such as bird plumage colours, against UV-poor natural backgrounds.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4820145
- author
- Chavez, Johanna LU ; Kelber, Almut LU ; Vorobyev, Misha and Lind, Olle LU
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Biology letters
- volume
- 10
- issue
- 11
- article number
- 20140670
- publisher
- Royal Society Publishing
- external identifiers
-
- pmid:25376799
- wos:000345465900011
- scopus:84920024734
- pmid:25376799
- ISSN
- 1744-9561
- DOI
- 10.1098/rsbl.2014.0670
- language
- English
- LU publication?
- yes
- id
- 03c71dc7-a4e9-4d61-89ed-46418f99b2f2 (old id 4820145)
- date added to LUP
- 2016-04-01 10:55:55
- date last changed
- 2024-03-24 21:28:46
@article{03c71dc7-a4e9-4d61-89ed-46418f99b2f2, abstract = {{Photoreceptor adaptation ensures appropriate visual responses during changing light conditions and contributes to colour constancy. We used behavioural tests to compare UV-sensitivity of budgerigars after adaptation to UV-rich and UV-poor backgrounds. In the latter case, we found lower UV-sensitivity than expected, which could be the result of photon-shot noise corrupting cone signal robustness or nonlinear background adaptation. We suggest that nonlinear adaptation may be necessary for allowing cones to discriminate UV-rich signals, such as bird plumage colours, against UV-poor natural backgrounds.}}, author = {{Chavez, Johanna and Kelber, Almut and Vorobyev, Misha and Lind, Olle}}, issn = {{1744-9561}}, language = {{eng}}, number = {{11}}, publisher = {{Royal Society Publishing}}, series = {{Biology letters}}, title = {{Unexpectedly low UV-sensitivity in a bird, the budgerigar.}}, url = {{http://dx.doi.org/10.1098/rsbl.2014.0670}}, doi = {{10.1098/rsbl.2014.0670}}, volume = {{10}}, year = {{2014}}, }