Saturday 25 May
Scimitar-horned oryx (Oryx dammah)
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Scimitar-horned oryx fact file
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Scimitar-horned oryx description
The scimitar-horned oryx, so named for its magnificent curved horns, is now thought to be Extinct in the Wild, hunted to the brink of extinction for its meat and exceptionally robust hide (4). The stocky body is a pale colour, with brown markings on the face and a reddish-brown neck and chest area (5). The large, spread hooves allow these antelope to walk on the sand of their dry habitat (6).
- Oryx Algazelle, Oryx De Libye.
- Orix De Cimitarra.
Scimitar-horned oryx biology
This species is well adapted for survival in the dry areas it inhabits; it is able to live for nine to ten months without drinking, thanks to a number of specialisations including kidneys that minimise urine production and an ability to reach body temperatures of 46.5°C before beginning to perspire (9). In the wild, the scimitar-horned oryx lived in groups of up to 40, with much larger herds forming at certain times of year (9) (10). In the wet season these herds migrated to the north, returning at the onset of the dry season (9). Births occur mainly in March and October (2), and the female will separate herself from the herd for a few hours while she calves (6). The young become fully independent at around 14 weeks of age (6).Top
Scimitar-horned oryx range
The scimitar-horned oryx was once one of the most common large mammals of northern Africa with a range extending from Morocco and Tunisia to Egypt, reaching south to Mauritania and Sudan (7) (8). The range rapidly declined throughout the 20th Century, until in 1980 it was known only from Chad and Niger with a few individuals in Mali and Sudan. The species is believed to have become Extinct in the Wild in 1999 (9).Top
Scimitar-horned oryx habitat
Inhabits sub-desert areas, the area between true desert and the Sahel where the annual rainfall is less than 350 millimetres, and lives in dunes, wooded depressions between dunes and grassy steppe (9) (10).Top
Scimitar-horned oryx statusTop
Scimitar-horned oryx threats
Originally the scimitar-horned oryx began to decline as a result of major climatic changes that caused the Sahara region to become dry. As the Sahara desert expanded, two populations of this oryx became increasingly isolated. The northern population was mostly lost prior to the 20th Century (8) (9). The decline of the southern population accelerated as Europeans began to settle the area and hunting for meat, hides and horn-trophies increased. It is thought that World War Two and the Civil War in Chad during the 1980s impacted heavily on the species through an increase in hunting for food (4) (9).Top
Scimitar-horned oryx conservation
The species has successfully been bred in captivity and in 1985, five captive-bred pairs were reintroduced to Tunisia, and by 1989 the herd had produced 4 wild-born calves (9). Captive-bred oryx now exist in healthy numbers in both Tunisia and Morocco, and have been reintroduced into Senegal (1) (11). Individuals have also been introduced to Israel, although this was not within the historic range (9). Recent reports of sightings of oryx in Chad and Niger have been investigated but no animals found (1).Top
Find out more
For further information on the scimitar-horned oryx and its conservation see:
- Sahara Conservation Fund (SCF):
Authenticated (18/05/2006) by John Newby, Director of the Sahara Conservation Fund (SCF).
- A semiarid region of north-central Africa south of the Sahara desert that stretches across six countries from Senegal to Chad.
- A biome (or subdivision of the Earth’s surface) that is composed of a swathe of temperate grassland stretching from Romania to China. Natural grassland with low rainfall.
- IUCN Red List (March, 2008)
- Ultimate Ungulate (February, 2002)
- UNEP-WCMC database (December, 2002)
- Newby, J. (2006) Pers. comm.
- Macdonald, D. (2001) The New Encyclopedia of Mammals. Oxford University Press, Oxford.
- Burnie, D. (2001) Animal. Dorling Kindersley, London.
- African Mammals Database (February, 2002)
- Beudels, R.C., Devilliers, P., Lafontaine, R., Devilliers-Terschuren, J. and Beudels, M. (2006) CMS SSA Concerted Action. 2d Edition. CMS Technical Series Publication No. 10. UNEP/CMS Secretariat, Bonn, Germany.
- Animal Info (February, 2002)
- Newby, J.E. (1978) The Ecological Resources of the Ouadi Rimé-Ouadi Achim Faunal Reserve, Chad (unpublished update to 1974 report). Direction des Parcs Nationaux, N'Djaména.
- Spevak, E., Gilbert, T., Engel, H., Correll, T. and Houston, B. (2006) Returning the addax and the oryx to Tunisia. Communiqué, American Zoo and Aquarium Association, 2006: 13 - 14.
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