Hiramatsu, C., Tsutsui, T., Matsumoto, Y., Aureli, F., Fedigan, L. M. and Kawamura, S. (2005). Color vision polymorphism in wild capuchins (Cebus
capucinus) and spider monkeys (Ateles geoffroyi) in Costa Rica. American
Journal of Primatology, 67 (4): 447 - 461.
As a first step towards the understanding of vision-behavior relationships,
we conducted color-vision typing by analyzing fecal DNA for two wild groups
of white-faced capuchin monkeys (Cebus capucinus) and one group of black-handed spider monkeys (Ateles geoffroyi) inhabiting Santa Rosa National Park of Costa Rica. Three and two pigment
types were found in the respective species. In one Cebus group and the
Ateles group, all alleles were present, whereas in the other Cebus group
only two alleles were found with one allele predominating, likely due to
inbreeding effect, indicating that wild populations can exhibit a variety
of allele compositions. This result also suggests that color vision polymorphism
can be easily distorted by natural factors skewing population structure
such as inbreeding. The numbers in the tables above are updated after publication
of this paper.