Grouse jerboa
| Grouse jerboa | ||||||||||||
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Grouse jerboa ( Dipus sagitta ) |
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Dipus | ||||||||||||
| Carpenter , 1780 | ||||||||||||
| Scientific name of the species | ||||||||||||
| Dipus sagitta | ||||||||||||
| ( Pallas , 1773) |
The northern three-toed jerboa ( Dipus sagitta ) is a common jumping mouse in Central Asia. Their distribution area extends from the Caspian Sea over northern Iran , the Central Asian successor states of the Soviet Union and Xinjiang to Manchuria .
The fur of the grouse changes its color with the seasons. In winter it is light orange on top, in summer it is gray-beige. The underside always remains white. The strong hind legs have three toes and each of these is studded with bristles, which gave this jerboa its name.
The habitat are semi-deserts. Grouse jerboa prefer a sandy bottom, but need adequate cover in their habitat with bushes. They live in buildings. For the summer, a burrow is built that is 40 to 100 cm below the surface and is centered in a nest chamber that is padded with dry grass. The building is accessible via a main entrance and one or more emergency exits. The entrance is locked during the hot summer months to maintain a cool internal temperature. From here a tunnel leads to the nest chamber, which is up to 3 m long in males and up to 5.8 m in females. For the hibernation , a separate building will be created, which is on average even deeper underground (up to 3 meters) and whose access tunnel will be closed again immediately after installation. Hibernation lasts from November to March in Kazakhstan's cold steppes, but is shorter in other regions, and grouse jerbos do not hibernate at all in Iran.
At night, grouse jerboas leave their burrows and look for food. Roots, grasses, seeds, fruits and flowers are eaten. Insects are common foods. Depending on the area of distribution, the reproductive period lasts two to nine months. This means that females have one litter per year in cold regions and up to four in warm regions.
The IUCN sees no decisive obstacles for the grouse jerboa and lists them as not endangered ( Least Concern ).
Individual evidence
- ↑ a b c Dipus sagitta in the endangered Red List species the IUCN 2011. Posted by: Batsaikhan, N., Avirmed, D., Tinnin, D. & Tsytsulina, K., 2008. Accessed June 7, 2012 found.
literature
- Ronald M. Nowak: Walker's Mammals of the World. 2 volumes. 6th edition. Johns Hopkins University Press, Baltimore MD et al. 1999, ISBN 0-8018-5789-9 .
