Tana River red colobus Procolobus rufomitratus: 2002 2004 2006 2008 2012 Kenya 1,100–1,300 Endangered: hunting (bushmeat) habitat loss and fragmentation (agricultural encroachment, fire, firewood, selective logging for local use [houses, canoes]) habitat degradation (livestock, dam construction, irrigation projects) We estimate population size of the red colobus to be 788 individuals in 82 groups and that of the crested mangabeys to be 2,070 individuals in 59 groups.

2 threatened primates: the Tana River red colobus (Procolobus rufomitratus) and the Tana River crested mangabey (Cercocebus galeritus galeritus).We conducted censuses in 73 forest patches from January through March 2001. The demography of the Tana river red colobus colobus badius rufomitratus. Estimated population: 1,100-1,300, as per the recent data on IUCN. and the Tana River crested mangabey(Cercocebus galeritus galeritus).We conducted censuses in 73 forest patches from January through March 2001. Total population is estimated at 1,100-1,300. Ochiago, W Odhiambo.

Language en. Habitat: Gallery forest near the Tana River in southeastern Kenya. Red colobuses are Old World monkeys of the genus Piliocolobus. The total known range is just 60km. They are closely related to the black-and-white colobus monkeys (genus Colobus), and some species are often found in groups with the blue monkey. They were found in 34 (63%) of the forests. Estimated population: 10,000-15,000, as per a 1996 report published on IUCN. It was formerly considered a subgenus within the genus Procolobus, which is now restricted to the olive colobus. Full-text (2.351Mb) Date 1991. Type Thesis. A before-and-after trial in 1975-1985 in swamp and riverine forest in Tana River Primate Reserve, Kenya found that despite permanent presence of reserve staff along with other interventions, Tana River red colobus Colobus badius rufomitratus and crested mangabeys Cercocebus galeritus galeritus decreased over a ten year period.

Diet Author. Population. Tana River red colobus have a distributional range which extends for about 60 km along the lower Tana River from Kipende to Mitapani. Metadata Show full item record. The Tana River Red Colobus is limited to a very small area made up of fragmented patches of forest along the banks of the lower Tana River in Kenya. Habitat and range. Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species. We studied the population size and distribution of diurnal primates in the lower Tana River forests, Kenya. They live in large troops which can number up to 80 individuals, the average being somewhere around 20 to 40 monkeys. Groups often establish a dominance hierarchy determined by aggressive behavior.

The western red colobus is frequently hunted by the common chimpanzee. Piliocolobus rufomitratus, or Tana River red colobus monkey, inhabits patches of evergreen riverine forest that undergo periodic flooding from the Tana River. We conducted censuses in 73 forest patches from January through March 2001. The Tana River Primate Reserve was established in 1976 to protect the remaining forest along the Tana River and the most threatened primate species, which are; the Tana River Red Colobus and the Tana River Mangabey, both endemic to the forests of lower Tana River. We estimate population size of the red colobus to be 788 individuals in 82 groups and that of the crested mangabeys to be 2,070 individuals in 59 groups. View/ Open. Abstract: Two Endangered primate taxa, the Tana River red colobus (population estimate less than 1200) and the Tana River mangabey (population estimate less than 2000), are only known from a restricted area of patchy riverine forest in the floodplain of the Lower Tana River in Kenya. Microsoft may earn an Affiliate Commission if you purchase something through recommended links in this article At least 86 groups occur. Tana river red colobus Order : Primates Family : Cercopithecidae Subfamily : Colobinae Species : Procolobus rufomitratus Keywords: red The Eastern red colobus, tana river red colobus is listed as Critically Endangered (CR), facing an extremely high risk of extinction in the wild, on the IUCN Red List of Threatened Species The total population is estimated as 1,100 - 1,300 animals. They are the only remaining habitats for 2 threatened primates: the Tana River red colobus (Procolobus rufomitratus) and the Tana River crested mangabey (Cercocebus galeritus galeritus). Food, grooming, and sexual partners are distributed amongst higher-ranking individuals initially, followed by lower-ranking individuals.

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