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Lens transmittance shapes ultraviolet sensitivity in the eyes of frogs from diverse ecological and phylogenetic backgrounds

Yovanovich, Carola A.M. LU ; Pierotti, Michele E.R. ; Kelber, Almut LU ; Jorgewich-Cohen, Gabriel ; Ibáñez, Roberto and Grant, Taran (2020) In Proceedings. Biological sciences 287(1918).
Abstract

The amount of short wavelength (ultraviolet (UV), violet and blue) light that reaches the retina depends on the transmittance properties of the ocular media, especially the lens, and varies greatly across species in all vertebrate groups studied previously. We measured the lens transmittance in 32 anuran amphibians with different habits, geographical distributions and phylogenetic positions and used them together with eye size and pupil shape to evaluate the relationship with diel activity pattern, elevation and latitude. We found an unusually high lens UV transmittance in the most basal species, and a cut-off range that extends into the visible spectrum for the rest of the sample, with lenses even absorbing violet light in some diurnal... (More)

The amount of short wavelength (ultraviolet (UV), violet and blue) light that reaches the retina depends on the transmittance properties of the ocular media, especially the lens, and varies greatly across species in all vertebrate groups studied previously. We measured the lens transmittance in 32 anuran amphibians with different habits, geographical distributions and phylogenetic positions and used them together with eye size and pupil shape to evaluate the relationship with diel activity pattern, elevation and latitude. We found an unusually high lens UV transmittance in the most basal species, and a cut-off range that extends into the visible spectrum for the rest of the sample, with lenses even absorbing violet light in some diurnal species. However, other diurnal frogs had lenses that transmit UV light like the nocturnal species. This unclear pattern in the segregation of ocular media transmittance and diel activity is shared with other vertebrates and is consistent with the absence of significant correlations in our statistical analyses. Although we did not detect a significant phylogenetic effect, closely related species tend to have similar transmittances, irrespective of whether they share the same diel pattern or not, suggesting that anuran ocular media transmittance properties might be related to phylogeny.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
anura, diel pattern, ocular media transmittance, ultraviolet sensitivity, vision, visual ecology
in
Proceedings. Biological sciences
volume
287
issue
1918
article number
20192253
publisher
Royal Society
external identifiers
  • pmid:31910785
  • scopus:85077719534
ISSN
1471-2954
DOI
10.1098/rspb.2019.2253
language
English
LU publication?
yes
id
a373c0da-5322-4b5c-b84b-221f73cecbdd
date added to LUP
2020-01-24 12:53:04
date last changed
2021-04-13 03:30:58
@article{a373c0da-5322-4b5c-b84b-221f73cecbdd,
  abstract     = {<p>The amount of short wavelength (ultraviolet (UV), violet and blue) light that reaches the retina depends on the transmittance properties of the ocular media, especially the lens, and varies greatly across species in all vertebrate groups studied previously. We measured the lens transmittance in 32 anuran amphibians with different habits, geographical distributions and phylogenetic positions and used them together with eye size and pupil shape to evaluate the relationship with diel activity pattern, elevation and latitude. We found an unusually high lens UV transmittance in the most basal species, and a cut-off range that extends into the visible spectrum for the rest of the sample, with lenses even absorbing violet light in some diurnal species. However, other diurnal frogs had lenses that transmit UV light like the nocturnal species. This unclear pattern in the segregation of ocular media transmittance and diel activity is shared with other vertebrates and is consistent with the absence of significant correlations in our statistical analyses. Although we did not detect a significant phylogenetic effect, closely related species tend to have similar transmittances, irrespective of whether they share the same diel pattern or not, suggesting that anuran ocular media transmittance properties might be related to phylogeny.</p>},
  author       = {Yovanovich, Carola A.M. and Pierotti, Michele E.R. and Kelber, Almut and Jorgewich-Cohen, Gabriel and Ibáñez, Roberto and Grant, Taran},
  issn         = {1471-2954},
  language     = {eng},
  number       = {1918},
  publisher    = {Royal Society},
  series       = {Proceedings. Biological sciences},
  title        = {Lens transmittance shapes ultraviolet sensitivity in the eyes of frogs from diverse ecological and phylogenetic backgrounds},
  url          = {http://dx.doi.org/10.1098/rspb.2019.2253},
  doi          = {10.1098/rspb.2019.2253},
  volume       = {287},
  year         = {2020},
}