Sexual dimorphism in the squirrel monkey, Saimiri sciureus (Linnaeus, 1758) and Saimiri ustus (I. Geoffroy, 1844) (Primates, Cebidae)
| Autor: | Goldschmidt B, Ribeiro-Andrade Mc, Ferreira-Nascimento Lw, Monnerat-Nogueira D, Simmer-Bravin J, Matos-Fasano D, Brück-Gonçalves Ma, Araújo-Lopes C, Mota-Marinho A |
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| Rok vydání: | 2007 |
| Předmět: |
Male
Coat Zoology Body weight sexual maturity lcsh:Botany lcsh:Zoology Cebidae Sexual maturity Animals lcsh:QL1-991 lcsh:Science Hair Color lcsh:QH301-705.5 Saimiri coat color Sex Characteristics biology Squirrel monkey Saimiri sciureus Anatomy biology.organism_classification lcsh:QK1-989 Sexual dimorphism Saimiri ustus lcsh:Biology (General) lcsh:Q Female non-human primates General Agricultural and Biological Sciences |
| Zdroj: | Brazilian Journal of Biology v.69 n.1 2009 Brazilian Journal of Biology Instituto Internacional de Ecologia (IIE) instacron:IIE Brazilian Journal of Biology, Vol 69, Iss 1, Pp 171-174 |
| ISSN: | 1678-4375 |
| Popis: | Causes and implications of sexual dimorphism have been studied in several different primates using a variety of morphological characters such as body weight, canine length, coat color and ornamentation. Here we describe a peculiar coat color characteristic in the squirrel monkey that is present only in adult females over five years old and which increases with age. Neither males nor young animals manifest this phenomenon, which is characterized by a spot of black hairs located anteriorly to the external ear (pinna). This characteristic could be used to discriminate adult females of Saimiri sciureus in the wild without the need of capture techniques. |
| Databáze: | OpenAIRE |
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