The Grant's zebra is the smallest subspecies of the Plains Zebra.
Distribution
The distribution of this subspecies is in
Zambia west of the
Luangwa river and west to
Kariba,
Shaba Province of the
Democratic Republic of the Congo, north to the
Kibanzao Plateau. In
Tanzania north from
Nyangaui and
Kibwezi into southwestern
Kenya as fas as
Sotik. It can also be found in eastern Kenya and east of the
Rift Valley into southernmost
Ethiopia. Perhaps it also occurs as far as the
Juba River in
Somalia.
Upper Zambezi Zebras
Duncan (1992) recognised the Upper Zambezi Zebra (
Equus quagga zambeziensis Prazak, 1898). Groves and Bell (2004) come to the conclusion that the zebras from West Zambia and
Malawi cannot be distinguished cranially and that they differ only slightly from other northern plains zebras. The rather minor size difference does not justify a separate subspecific status for the Upper Zambezi Zebra. Therefore, they combine these zebras with the Grant's Zebra (
Equus quagga boehmi).
Characteristics
This northern subspecies is striped with black on a white coat on its head, neck, flanks, haunches and whole of the limbs down to the hoofs. Shadow stripes are absent or only poorly expressed. The stripes are broad as well are the innerspaces. Northerly specimens may lack a mane. This completely maneless Somali population may represent even a seventh subspecies: Equus quagga isabella (Ziccardi, 1958). This subspecies may be valid, but at present there is no evidence that it is.
Regional extinctions
Recent civil wars in
Rwanda,
Somalia,
Sudan,
Ethiopia, and
Uganda have caused dramatic declines in all wildlife populations, including those of Grant’s zebra. It is now extinct in
Burundi. Civil war in
Angola during much of the past 25 years has devastated its wildlife populations, including its once-abundant plains zebra, and destroyed the national parks administration and infrastructure. Consequently, the Grant's Zebra is probably extinct or nearly so in Angola, although confirmation will have to wait until future surveys are conducted.
References
- Duncan, P. (ed.). 1992. Zebras, Asses, and Horses: an Action Plan for the Conservation of Wild Equids. IUCN/SSC Equid Specialist Group. IUCN, Gland, Switzerland.
- Groves, C.P. & Bell, H.B. 2004. New investigations on the taxonomy of the zebras genus Equus, subgenus Hippotigris. Mammalian Biology. 69: 182-196.
- Moelman, P.D. 2002. Equids. Zebras, Assess and Horses. Status Survey and Conservation Action Plan. IUCN/SSC Equid Specialist Group. IUCN, Gland, Switzerland. (http://www.iucn.org/themes/ssc/pubs/sscaps.htm#Equids2002)
Equids | Wildlife of Africa