Bale Vervet Monkey
| Bale Vervet Monkey | ||||||||||||
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Bale Vervet Monkey ( Chlorocebus djamdjamensis ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Chlorocebus djamdjamensis | ||||||||||||
| ( Neumann , 1902) |
The bale vervet monkey ( Chlorocebus djamdjamensis ) is a primate species from the family of vervet monkeys (Cercopithecidae). It is one of the six species in which the vervet monkeys are differentiated in the more recent classifications. This primate species occurs only in Ethiopia , its range is limited to the Bale Mountains and adjacent areas in the east of the Ethiopian region of Oromiyaa . There the animals live mainly in bamboo forests at altitudes of 2400 to 3000 meters.
features
The fur of the bale green monkey is colored gray-brown on the back and is significantly thicker than that of the other green monkeys. The hands and feet are gray, the abdomen is whitish. The face is dark and characterized by the white beard and a narrow, light stripe over the eyes. Compared to other monkeys, the tail is relatively short. Males reach a head trunk length of 42 to 60 centimeters, females remain significantly smaller with 30 to 50 centimeters. The tail becomes 46 to 76 (males) or 41 to 66 (females) centimeters long and males reach a weight of 3.1 to 6.4 kilograms, while females weigh 1.5 to 4.9 kilograms.
Way of life
Little is known about the way of life of these animals; it probably largely corresponds to that of the other green monkeys. As a result, they are semiterrestrial (they can be found both on the ground and in the trees) and diurnal. They are likely to live in larger groups of a few males, many females and the common offspring. They feed mainly on young bamboo leaves, and they also eat fruits, seeds and animal food (invertebrates, small reptiles, birds and small mammals).
Bale monkeys that live in open forests are genetically very different from those from closed forests and their genome is more similar to that of the Ethiopian vervet monkey ( Chlorocebus aethiops ) and that of the southern vervet monkey ( C. pygerythrus ). This suggests that the bale vervet monkey hybridizes with the two related species in open forests.
Danger
The IUCN lists them under “Vulnerable”. In historical times their range was significantly larger. The main threat to the species is the spread of human settlements and the clearing of bamboo forests.
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 .
supporting documents
- ↑ a b c 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 674 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
- ↑ Addisu Mekonnen, Eli K. Rueness, Nils Chr. Stenseth, Peter J. Fashing, Afework Bekele, R. Adriana Hernandez-Aguilar, Rose Missbach, Tanja Haus, Dietmar Zinner, Christian Roos. Population genetic structure and evolutionary history of Bale monkeys ( Chlorocebus djamdjamensis ) in the southern Ethiopian Highlands. BMC Evolutionary Biology, 2018; 18 (1) DOI: 10.1186 / s12862-018-1217-y
- ↑ Chlorocebus djamdjamensis in the endangered Red List species the IUCN 2008. Posted by: Butynski, TM, Gippoliti, S., Kingdon, J. & De Jong, Y., 2008. Accessed July 10, 2018th