Yellow-headed marmoset
| Yellow-headed marmoset | ||||||||||||
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Yellow-headed marmoset ( Callithrix flaviceps ) |
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| Callithrix flaviceps | ||||||||||||
| ( Thomas , 1903) |
The yellow-headed tufted monkey or monkey ( Callithrix flaviceps ) is a species of primate from the marmoset family .
features
Yellow-headed marmosets, like all marmosets, are relatively small primates, they can weigh around 400 grams. Their fur is predominantly black-gray in color, the belly is a little lighter, the long tail is curled black-gray. Their head is characterized by the orange-yellow hair on the top and on the cheeks, on the ears there are whitish or yellow tufts of hair. Except for the dark circles around the eyes and nose, the face is mostly white in color. As with all marmosets, the fingers and toes (with the exception of the big toe) have claws instead of nails.
distribution and habitat
Yellow-headed marmosets inhabit a small area in southeastern Brazil , their range includes the south of Espírito Santo and the southeast of Minas Gerais . Their habitat are the mountainous Atlantic coastal forests at heights of up to 1200 meters.
Lifestyle and diet
Yellow-headed marmosets, like all marmosets, are diurnal tree-dwellers, where they move around on four legs or jumping. They spend the nights in tree hollows or other shelters. These primates live in groups of 4 to 15 animals, most of which are led by a dominant pair.
Tree saps play an important role in nutrition, although their teeth are less suitable for gnawing at the tree bark than those of other marmosets . Tree sap is mainly consumed when fruits and seeds, another important food, are not available. They also eat insects and other small animals.
Reproduction
Normally only the dominant female in a group reproduces, the ovulation of the other animals is suppressed. Twins are usually born after a gestation period of around 140 to 150 days. The father and the other group members participate intensively in raising the young, they carry them around, occupy themselves with them and leave them to the mother only to suckle. The reproduction rate is relatively high, the female can give birth again five to eight months after birth.
threat
Yellow-headed marmosets inhabit a small area that is subject to intensive deforestation. The total population is estimated to be less than 2,500 adult animals and is also highly fragmented; no individual population comprises more than 250 animals. In addition, part of the distribution area is privately owned and therefore protection is not guaranteed. The IUCN lists the species as "critically endangered" ( endangered ).
literature
- Thomas Geissmann : Comparative Primatology. Springer-Verlag, Berlin et al. 2003, ISBN 3-540-43645-6 .
- Don E. Wilson, DeeAnn M. Reeder (Eds.): Mammal Species of the World. A taxonomic and geographic Reference. Johns Hopkins University Press, Baltimore MD 2005, ISBN 0-8018-8221-4 .
