Polymorphic color vision in white-faced capuchins (Cebus capucinus): Is there foraging niche divergence among phenotypes? |
| |
Authors: | Amanda D Melin Linda M Fedigan Chihiro Hiramatsu Shoji Kawamura |
| |
Institution: | (1) Department of Anthropology, University of Calgary, 2500 University Drive, N.W.Calgary, AB T2N 1N4, Canada;(2) Department of Integrated Biosciences, Graduate School of Frontier Sciences, University of Tokyo, Seimeitou 502, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan |
| |
Abstract: | Many species of platyrrhine primates are characterised by sex-linked color vision polymorphism. This presents an opportunity
to study the biology and ecology of individuals with different phenotypes living in the same group. Several evolutionary processes
could maintain polymorphic genes in populations. In this study, we evaluate the hypothesis that foraging niche divergence
among monkeys explains the presence of multiple color vision phenotypes. Specifically, we test whether dichromats and trichromats
differ in foraging time devoted to cryptic vs brightly colored resources. We did not find any differences in foraging time
spent on different food types by dichromatic and trichromatic monkeys in two groups of white-faced capuchins (Cebus capucinus) living in a tropical dry forest. We conclude that in so far as these variables are concerned, niche divergence does not
likely explain color vision polymorphism in our study population. |
| |
Keywords: | Color vision Polymorphism Capuchin Niche Divergence |
本文献已被 SpringerLink 等数据库收录! |
|