Document Detail


The adaptive value of primate color vision for predator detection.
MedLine Citation:
PMID:  24535839     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The complex evolution of primate color vision has puzzled biologists for decades. Primates are the only eutherian mammals that evolved an enhanced capacity for discriminating colors in the green-red part of the spectrum (trichromatism). However, while Old World primates present three types of cone pigments and are routinely trichromatic, most New World primates exhibit a color vision polymorphism, characterized by the occurrence of trichromatic and dichromatic females and obligatory dichromatic males. Even though this has stimulated a prolific line of inquiry, the selective forces and relative benefits influencing color vision evolution in primates are still under debate, with current explanations focusing almost exclusively at the advantages in finding food and detecting socio-sexual signals. Here, we evaluate a previously untested possibility, the adaptive value of primate color vision for predator detection. By combining color vision modeling data on New World and Old World primates, as well as behavioral information from human subjects, we demonstrate that primates exhibiting better color discrimination (trichromats) excel those displaying poorer color visions (dichromats) at detecting carnivoran predators against the green foliage background. The distribution of color vision found in extant anthropoid primates agrees with our results, and may be explained by the advantages of trichromats and dichromats in detecting predators and insects, respectively. Am. J. Primatol. © 2014 Wiley Periodicals, Inc.
Authors:
Daniel Marques Almeida Pessoa; Rafael Maia; Rafael Cavalcanti de Albuquerque Ajuz; Pedro Zurvaino Palmeira Melo Rosa De Moraes; Maria Helena Constantino Spyrides; Valdir Filgueiras Pessoa
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-2-17
Journal Detail:
Title:  American journal of primatology     Volume:  -     ISSN:  1098-2345     ISO Abbreviation:  Am. J. Primatol.     Publication Date:  2014 Feb 
Date Detail:
Created Date:  2014-2-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8108949     Medline TA:  Am J Primatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2014 Wiley Periodicals, Inc.
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