Uganda mangabe
| Uganda mangabe | ||||||||||||
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Uganda mangabe ( Lophocebus ugandae ) |
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| Scientific name | ||||||||||||
| Lophocebus ugandae | ||||||||||||
| ( Matschie , 1912) |
The Uganda mangabe ( Lophocebus ugandae ) is a species of primate from the family of vervet monkeys (Cercopithecidae). For a long time, the population was summarized with the gray-cheeked indication and only raised in 2007 to the status of species.
features
Uganda mangabies are slender primates with long limbs and a long tail. They are similar to the gray cheek indications , but have a more delicate skull and shorter shoulder hair (coat). Their fur is predominantly black-brown to blackish in color, the long cheek hairs are gray to brown in color, as are the long hair on the shoulders. The long shoulder hair is colored a little lighter gray-brown than the trunk. The hairs on the head are directed backwards, the outer ends of the eyebrows are bent upwards in a horn-shaped manner. The cheeks are light gray-brown. Albinism is common in the species .
Their head body length is 54 to 70 (males) or 42 to 61 centimeters (females), plus a long tail, which in the males can be 65 to 75 centimeters long, while that of the females reaches 55 to 65 centimeters. The weight of adult females is 4 to 6 kilograms, while the significantly heavier males reach 6 to 10 kilograms.
If the monkeys stand on all fours ( quadruped ), the tail is often carried straight up with the tip pointing forward.
distribution
Uganda mangabes are only found in Uganda and in the Minziro Forest Reserve and Sango Bay Forest in the far northwest of Tanzania ( Kagera region ). In Uganda they predominantly inhabit the forests on the north and north-west banks of Lake Victoria , but also on the western side of the Albert Rift , e.g. B. in Kibale National Park . Habitat of this species are evergreen primary forests , secondary forests and gallery forests .
Way of life
Little is known about the way of life of the Uganda Mangabians. Like all black indications, they are diurnal tree dwellers that rarely come to the ground. They live in groups of 5 to 30 animals, as a rule there are fewer than 20. Like other mantle figures, the Uganda mangabe forms mixed groups with other monkey species, these are the red-tailed monkey ( Cercopithecus ascanius ), the diademed monkey ( C. mitis ) , the mantled monkey ( Colobus guereza ) and the Uganda colobus monkey ( Piliocolobus tephrosceles ).
Uganda mangabies feed on fruits, nuts and small animals. In Kibale National Park, fruits make up around 35 to 78% of their diet, followed by leaves (2 to 10%), flowers (1 to 8%) and animal food (0 to 9%). A total of 50 to 65 different plant species are used there. Due to their thick enamel layer , the Uganda mangabies are particularly adapted to hard vegetable foods such as seeds and nuts, which make up a significant proportion of the diet.
On average, the females have a single cub every 33 months. The gestation period is about 186 days. During their fertility, females develop sexual swelling, similar to female baboons.
Little is known about the degree of risk. The Uganda Mangabe occurs in four protected areas, including the Mabira Forest Reserve and Kibale National Park, where the population has remained stable over the past few decades. The IUCN does not yet list the species as separate from the gray cheek indication.
literature
- Thomas Geissmann : Comparative Primatology. Springer-Verlag, Berlin et al. 2003, ISBN 3-540-43645-6 .
- Ronald M. Nowak: Walker's Mammals of the World. 6th edition. Johns Hopkins University Press, Baltimore MD 1999, ISBN 0-8018-5789-9 .
Individual evidence
- ^ Colin Groves : The Endemic Uganda Mangabey, Lophocebus ugandae , and Other Members of the albigena Group ( Lophocebus ). (PDF file; 488 kB) In: Primate Conservation. No. 22, 2007. doi: 10.1896 / 052.022.0112
- ↑ a b c d e f g h Elizabeth L. Gadsby, Colin P. Groves, Aoife Healy, K. Praveen Karanth, Sanjay Molur, Tilo Nadler, Matthew C. Richardson, Erin P. Riley, Anthony B. Rylands, Lori K Sheeran, Nelson Ting, Janette Wallis, Siân S. Waters & Danielle J. Whittaker: Family Cercopithecidae (Old World Monkeys). Page 657 in Russell A. Mittermeier , Anthony B. Rylands & Don E. Wilson : Handbook of the Mammals of the World: - Volume 3. Primates. Lynx Editions, 2013 ISBN 978-8496553897