Diana tarsier
| Diana tarsier | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Tarsius dentatus | ||||||||||||
| Miller & Hollister , 1921 |
The Diana tarsier ( Tarsius dentatus , Syn . : Tarsius dianae ) is a primate species from the group of tarsier . T. dentatus and T. dianae were described as two separate species; today they are considered conspecific .
features
Diana tarsier, like all tarsier, are very small primates, with a head body length of 11.5 to 12.5 centimeters. The tail is much longer with 22 to 25 centimeters, it is hairless except for a tuft of hair at the tip. The weight of these animals is 95 to 130 grams. The fur is gray in color. As with all Koboldmakis, the hind legs are very long as an adaptation to the jumping locomotion, and the tarsus are also elongated. The most striking feature of the rounded head, as with all Koboldmakis, are the enlarged eyes. From the closely related Sulawesi tarsier , the Diana tarsier differs in the white hair on the upper and lower lip, the more conspicuous rings around the eyes and other details in the structure of the skull.
distribution and habitat
These primates are endemic to the Indonesian island of Sulawesi . They inhabit the central part of the island and the eastern peninsula. Their habitat are rain and mangrove forests , although they are more common in secondary forests.
Lifestyle and diet
Diana lemurs, like all lemurs, are nocturnal tree dwellers who sleep in the dense vegetation during the day. At night they go in search of food, while moving vertically climbing and jumping. However, they move on all fours more often than other tarsier species.
The animals live in groups of two to seven animals. Groups are made up of a male, one to three females and the common offspring. The group members sleep together, albeit without physical contact, and also meet regularly to search for food. They are territorial animals that inhabit areas of 1 to 2 hectares. The area is marked with urine .
In the morning Diana-Koboldmakis sing duets. These singers point conspecifics to their own territory and probably also strengthen the cohesion within the group.
Like all Koboldmakis, these primates are pure carnivores. They mainly feed on insects , such as crickets , jumping terrors and moths . To a lesser extent, they also consume small vertebrates.
Danger
The main threat to the Diana Koboldmakis is the destruction of their habitat through deforestation. Other dangers are hunting by pets (such as cats) and the pet trade. The IUCN lists the species as "endangered" ( vulnerable ).
literature
- Thomas Geissmann : Comparative Primatology. Springer-Verlag, Berlin et al. 2002, 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 .
Web links
- KJ Gron: Primate Factsheets: Tarsier ( Tarsius )
- Information at Animal Diversity Web
- Photos and information at arkive.org
- Tarsius dentatus in the endangered Red List species the IUCN 2008 Posted by: M. & S. Shekelle flag, 2008. Accessed on 22 second in 2009.