Redback Saki
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Red-backed Saki ( Chiropotes chiropotes ) |
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| Chiropotes chiropotes | ||||||||||||
| ( Humboldt , 1811) |
The red-backed kaki ( Chiropotes chiropotes ) is a primate species from the group of the New World monkeys (Platyrrhini). It was formerly considered a subspecies of the Satan monkey , but is now more common and more common than this.
features
Red-backed jackets have a dense, short fur . This is mostly black, only the shoulders and the back are reddish-brown in color. In adult animals, the head is characterized by a mop of hair and a long beard on the throat. The tail is very long and bushy and cannot be used as a pronging tail. These animals reach a head body length of 32 to 48 centimeters, the tail measures 37 to 46 centimeters and the weight is 2.6 to 3.2 kilograms.
distribution and habitat
violet - red-backed kaki ,
red - white-nosed kaki ,
light blue - Guayana-red-backed kaki ,
yellow - satan monkey ,
green - uta-hick-saki .
Red-backed jackets are native to northern South America. Its distribution area is limited to the north by the Orinoco , to the east by the Rio Branco and to the south by the Rio Negro and thus roughly includes the Venezuelan states of Amazonas and Bolívar , the Brazilian state of Roraima and the north of Amazonas . The habitat of the Red Back Saki are forests, predominantly tropical rainforests.
Way of life
Red-backed jackets are diurnal and mostly stay in the trees in the upper canopy. They usually move on all fours, sometimes hanging by their hind legs when foraging. These primates live in groups of up to 40 animals, which are made up of several adult males and females with their offspring. These groups split up into smaller subgroups during the foraging in order to get back together for sleep (fission fusion organization). They feed primarily on hard-skinned fruits and seeds.
After a gestation period of around five months, the female gives birth to a single young at the beginning of the rainy season.
Systematics
The Rotrückensaki was described as Simia chiropotes in 1812 by the German naturalist Alexander von Humboldt . In 2003 the red-backed sakis east of the Rio Branco were separated from the species because they differ from the red-backed sakis both in terms of coat color and genetically. For them, the name Chiropotes israelita , given in 1823 by the German natural scientist Johann Baptist von Spix , was revived. However, since the type specimens of Chiropotes israelita come from tributaries northeast of the Rio Negro and west of the Rio Branco, the name Chiropotes israelita is not available for the red-backed kaki east of the Rio Branco and the correct name for the Guiana-red-backed kaki is now Chiropotes sagulatus , while Chiropotes israelita is a synonym of Chiropotes chiropotes .
Danger
Red-backed sakis are sometimes hunted for their meat, but overall the species is widespread and frequent; according to the IUCN , it is not an endangered species. In Europe the species is kept in zoos in Paris, Colchester and Belfast (European first breeding).
Former German owners are the zoos in Cologne and Duisburg.
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 .
Individual evidence
- ^ A b S. F. Ferrari, LM Veiga, LP Pinto, LK Marsh, RA Mittermeier & AB Rylands: Family Pitheciidae (Titis, Saakis and Uacaris). Pages 480 and 481 in Russell A. Mittermeier , Anthony B. Rylands & Don E. Wilson : Handbook of the Mammals of the World: Primates: 3rd ISBN 978-8496553897
- ↑ CR Bonvicino, JP Boubli, IB Otazú, FC Almeida, FF Nascimento, JR Coura and HN Seuánez: Morphologic, karyotypic, and molecular evidence of a new form of "Chiropotes" (primates, pitheciinae). In: American Journal of Primatology. 61, 3, 2003, ISSN 0275-2565 , pp. 123-133.
- ^ IUCN entry
- ↑ [1] ZTL 18.6
