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Evolution and function of routine trichromatic vision in primates.
journal contribution
posted on 2023-06-08, 05:30 authored by P W Lucas, N J Dominy, P Riba-Hernandez, K E Stoner, N Yamashita, C Loría-Calderón, Y Peterson-Pereira, Y Rojas-Durán, R Salas-Pena, S Solis-Madrigal, Daniel Colaco OsorioDaniel Colaco Osorio, B W DarvellEvolution of the red-green visual subsystem in trichromatic primates has been linked to foraging advantages, namely the detection of either ripe fruits or young leaves amid mature foliage. We tested competing hypotheses globally for eight primate taxa: five with routine trichromatic vision, three without. Routinely trichromatic species ingested leaves that were "red shifted" compared to background foliage more frequently than species lacking this trait. Observed choices were not the reddest possible, suggesting a preference for optimal nutritive gain. There were no similar differences for fruits although red-greenness may sometimes be important in close-range fruit selection. These results suggest that routine trichromacy evolved in a context in which leaf consumption was critical.
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Publication status
- Published
Journal
EvolutionISSN
0014-3820Issue
11Volume
57Page range
2636-2643Pages
8.0Department affiliated with
- Evolution, Behaviour and Environment Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
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