White-shouldered marmoset
| White-shouldered marmoset | ||||||||||||
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White-shouldered marmoset ( Callithrix humeralifera ) |
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| Mico humeralifer | ||||||||||||
| ( É. Geoffroy , 1812) |
The white-shouldered marmoset ( Mico humeralifer , Syn .: Callithrix humeralifera ) is a species of primate from the marmoset family .
features
White-shouldered marmosets, like all marmosets, are relatively small primates. They reach a head body length of 20 to 27 centimeters, the tail is significantly longer and measures 31 to 37 centimeters. The average weight is 475 grams. Their fur is dark brown to black on the back and hind legs, and the shoulders, front legs and belly are whitish. The long, bushy tail is ringed black-gray. The head is black and shows white spots over the eyes, the white tufts of ears reminiscent of the marmosets are striking .
distribution and habitat
White-shouldered marmosets are only found in the eastern Amazon basin in Brazil . Their distribution area is limited in the north by the Amazon , in the west by the Rio Maués and in the east by the Rio Tapajós . Their habitat are tropical rainforests.
Way of life
Little is known about the way of life of these primates, presumably it corresponds to that of the other marmosets . As a result, they are diurnal tree dwellers who sleep in the liana thicket or in tree hollows at night. They live in groups of up to 15 animals organized around a reproductive couple. Their diet consists of tree saps - for which they are adapted with their specialized teeth in the lower jaw that are able to gnaw holes in the tree bark. They also eat insects and other small animals as well as fruits. As with all marmosets, twin births are likely to predominate and the father and the other group members participate intensively in raising the young.
Danger
In parts of its distribution area, the white-shouldered marmoset is exposed to habitat destruction through deforestation, possibly also hunting. Little is known about the degree of risk, however, the IUCN lists it under “too little data available” ( data deficient ).
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 .