Grant's zebra

Grant's zebra

Grant's zebra (E. quagga boehmi)
Conservation status
Least Concern (IUCN 3.1)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Perissodactyla
Family:	Equidae
Genus:	Equus
Subgenus:	Hippotigris
Species:	E. quagga
Subspecies:	E. q. boehmi
Trinomial name
*Equus quagga boehmi* Matschie, 1892

Grant's zebra (Equus quagga boehmi) is the smallest of six subspecies of the plains zebra. This subspecies represents the zebra form of the Serengeti-Mara ecosystem.

Distribution

Female with foal, resting, Serengeti, Tanzania

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 far as Sotik. It can also be found in eastern Kenya and east of the Great Rift Valley into southernmost Ethiopia. It also occurs as far as the Juba River in Somalia.

Upper Zambezi zebras

Duncan (1992)^[1] recognized the Upper Zambezi zebra (Equus quagga zambeziensis Prazak, 1898). Groves and Bell (2004)^[2] came 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 sub-specific status for the Upper Zambezi zebra. Therefore, they combine these zebras with the Grant's zebra (Equus quagga boehmi).

Characteristics

Grant’s zebra at Safari Wilderness in Lakeland, Florida.

This northern subspecies is vertically striped in front, horizontally on the back legs, and diagonally on the rump and hind flanks. Shadow stripes are absent or only poorly expressed. The stripes, as well as the inner-spaces, are broad and well defined. Northerly specimens may lack a mane. Grant’s zebras grow to be about 120 to 140 centimetres (3.9 to 4.6 ft) tall, and generally weigh about 300 kilograms (660 lb).^[3] The zebras live in family groups of up to 17 or 18 zebras, and they are led by a single stallion. Grant’s zebras live an average of 20 years.

Regional extinctions

Recent civil wars in the Congo, 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.

There are more Grant’s zebras in the wild than any other species or subspecies of zebras. Unlike Grevy and Mountain zebras, they are not endangered.^[4] Grant’s zebras eat the coarse grasses that grow on the African plains, and they are resistant to diseases that often kill cattle, so the zebras do well in the African savannas. However, recent civil wars and political conflicts in the African countries near their habitats has caused regional extinction., and sometimes zebras are killed for their coats, or to eliminate competition with domestic livestock.^[3]

Gallery

Mother and foal in Lakeland, Florida
Near Chilanga, Zambia
Fighting, Serengeti, Tanzania
Pregnant, Serengeti, Tanzania

References

↑ Duncan, P. (ed.). 1992.Zebras, Asses, and Horses: An Action Plan for the Conservation of Wild Equids. Gland, Switzerland: IUCN/SSC Equid Specialist Group.
↑ Groves, C.P. & Bell, H.B. 2004. "New Investigations on the Taxonomy of the Zebras Genus Equus, subgenus Hippotigris". Mammalian Biology. 69: 182-196.
1 2 "ANIMAL BYTES - Grant's Zebra". SeaWorld/Busch Gardens ANIMALS. SeaWorld Parks & Entertainment. Archived from the original on September 12, 2011.
↑ "Grant's Zebra". Honolulu Zoo. Archived from the original on September 12, 2011.

Moelman, P. D. 2002. Equids: Zebras, Assess and Horses. Status Survey and Conservation Action Plan. IUCN/SSC Equid Specialist Group.)

Species of the genus Equus

Extinct species are marked †

Asses	Equus africanus Equus africanus africanus Equus africanus asinus †Equus africanus atlanticus Equus africanus somaliensis Equus hemionus Equus hemionus hemionus †Equus hemionus hemippus Equus hemionus khur Equus hemionus kulan Equus hemionus luteus Equus hemionus onager †Equus hydruntinus Equus kiang Equus kiang chu Equus kiang holdereri Equus kiang kiang Equus kiang polyodon

Zebras	Equus grevyi Equus quagga Equus quagga burchellii Equus quagga boehmi Equus quagga borensis Equus quagga chapmani Equus quagga crawshayi Equus quagga selousi †Equus quagga quagga †Equus stenonis †Equus simplicidens Equus zebra Equus zebra hartmannae Equus zebra zebra

Horses	†Equus complicatus †Equus conversidens †Equus crinidens †Equus cumminsii †Equus excelsus Equus ferus Equus ferus caballus †Equus ferus ferus Equus ferus przewalskii †Equus francisci †Equus fraternus †Equus giganteus †Equus lambei †Equus namadicus †Equus niobrarensis †Equus occidentalis †Equus pacificus †Equus parastylidens †Equus pectinatus †Equus scotti †Equus sivalensis †Equus yunnanensis

Equidae Evolution of the horse Wild horse Domestication of the horse

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