Rio Beni Spring Monkey
| Rio Beni Spring Monkey | ||||||||||||
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| Plecturocebus modestus | ||||||||||||
| ( Lönnberg , 1939) |
The Rio-Beni-Spring monkey ( Plecturocebus modestus , Syn . : Callicebus modestus ) is a primate species from the subfamily of the Spring monkeys within the family of the Sakia monkeys (Pitheciidae).
features
Rio Beni jumper monkeys, like all jumper monkeys, are relatively small primates with thick fur. Their fur is reddish-gray or gray-brown in color, the paws and tail are darker, more blackish. The head is small and round, the face is surrounded by a wreath of red-brown hair. The tail is long and bushy, it cannot be used as a prehensile tail , the hind legs are long.
distribution and habitat
Rio Beni jumper monkeys are found only in a small area along the Río Beni River in central Bolivia . The approximately 1800 km² distribution area is located in the southwest of the Beni department . Their habitat are predominantly river forests.
Way of life
Little is known about the way of life of the Rio-Beni-Spring monkeys, presumably it corresponds to that of the other spring monkeys. They are diurnal and live mainly on trees. Jumper monkeys live in monogamous family groups, the two partners often stay together for life. They claim a fixed territory, which they point out to their conspecifics with morning duets. Their diet consists mainly of fruits and, to a lesser extent, leaves and insects. In the case of the jumping monkeys, the fathers participate intensively in rearing their young, they carry the child and give it to the mother only to suckle.
Danger
The main danger for the Rio Beni jumper is the destruction of their already small habitat. A planned expressway could accelerate this process. 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 .
- Marc GM van Roosmalen, Tomas van Roosmalen and Russell A. Mittermeier: A Taxonomic Review of the Titi Monkeys, Genus "Callicebus" Thomas 1903, with the description of two new species: "Callicebus bernhardi" and "Callicebus stepehnnashi", from Brazilian Amazonia . In: Neotropical Primates. 10, ISSN 1413-4703 , 2002, pp. 1-52, PDF .
- 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 .