UVS is rare in seabirds

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Title UVS is rare in seabirds
Author Capuska, Gabriel E. Machovsky; Huynen, Leon; Lambert, David Martin; Raubenheimer, David
Journal Name Vision Research
Year Published 2011
Place of publication United Kingdom
Publisher Elsevier
Abstract Ultraviolet-sensitive vision (UVS), believed to have evolved from an ancestral state of violet-sensitive vision (VS), is widespread among terrestrial birds, where it is thought to play a role in orientation, foraging, and sexual selection. Less is known, however, about the distribution and significance of UVS in seabirds. To date UVS has been definitively demonstrated only in two families (Laridae and Sternidae), although indirect evidence has been used to argue for a more widespread occurrence. In this study we analyzed short-wavelength sensitive (SWS1) opsin DNA sequences to determine the distribution of ancestral (VS) and derived (UVS) amino acid spectral tuning sites in 16 seabird species representing 8 families with diverse ecological niches. Our results revealed sequences associated with UVS pigments (UVSs) in the Black-backed gull (Larus dominicanus), providing further evidence of its widespread occurrence within the Laridae. The Caspian tern (Hydroprogne caspia) and White-fronted tern (Sterna striata), however, were found to have VSs, suggesting an evolutionary reversion to the ancestral state within Sternidae. VSs were also detected in an additional six families. Our results raise interesting questions about the functions of UV vision in marine environments.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1016/j.visres.2011.04.008
Volume 51
Issue Number 12
Page from 1333
Page to 1337
ISSN 1878-5646
Date Accessioned 2011-07-20; 2012-02-14T04:09:29Z
Research Centre Environmental Futures Research Institute
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Ecological Impacts of Climate Change
URI http://hdl.handle.net/10072/42558
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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