The dibatag (Ammodorcas clarkei), or Clarke's gazelle, is a medium-sized slender antelope native to Ethiopia and Somalia. Though not a true gazelle, it is similarly marked, with long legs and neck. It is often confused with the gerenuk due to their striking resemblance. The typical head-and-body length is about 103 to 117 cm (41 to 46 in). They stand up to about 80 to 90 cm (31 to 35 in). Male dibatag weigh between 20 and 35 kg (44 and 77 lb), whereas females range from 22 and 29 kg (49 and 64 lb). The length of the curved horns, present only on males, is typically between 10 and 25 cm (3.9 and 9.8 in). The upper parts are gray to fawn, while the dorsal and lateral areas are cinnamon to rufous (reddish brown). The underparts, rump and the insides of the legs are all white. While markings are visible on the face, there are none on the flanks or the buttocks.
Dibatag are alert and secretive, and their brown coat provides an excellent camouflage, making the dibatag one of the antelopes most difficult to hunt. They are diurnal animals, and navigate in very small herds. Both sexes attain sexual maturity at 12 to 18 months. The species is polygynous. After a gestational period of six to seven months, a single offspring is born. Parturition usually occurs from September to November. The lifespan typically averages 10 to 12 years. Dibatag may maintain temporary territories demarcated by preorbital gland secretions, urine or feces. Primarily browsers, the dibatag feed on foliage and young shoots and shrubs. Dibatag are well adapted to semi-arid habitats, with the capability of surviving on very little or no water.
Several factors including human settlement, habitat degradation, large numbers of livestock, political unrest and armed conflicts in the areas covering its range and lack of conservation measures for two to three decades in the late 20th century have now reduced the population to only a few thousand. Significant populations still occur in southern Ogaden (Ethiopia). The dibatag is listed by the IUCN as "Vulnerable".
^Heckel, J.; Wilhelmi, F.; Kaariye, X.; Amir, O. (2016). "Ammodorcas clarkei". IUCN Red List of Threatened Species. 2016: e.T1141A50181613. doi:10.2305/IUCN.UK.2016-2.RLTS.T1141A50181613.en. Retrieved 19 November 2021.
^Thomas, O. (1 June 1891). "On some antelopes collected in Somali-land by Mr. T. W. H. Clarke". Proceedings of the Zoological Society of London: 206–212.
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