The Kalahari ''Acacia''-''Baikiaea'' woodlands are an ecoregion located in

Botswana Botswana (, ), officially the Republic of Botswana ( tn, Lefatshe la Botswana, label=Setswana, ), is a landlocked country in Southern Africa. Botswana is topographically flat, with approximately 70 percent of its territory being the Kalahar ...

, northern Namibia, South Africa and Zimbabwe.

Setting

These woodlands cover the center of southern Africa, from northern Namibia diagonally through to southeast Botswana and just into the

Tuli Block The Tuli Block is a narrow fringe of land at Botswana's eastern border wedged between Zimbabwe in the north and east and South Africa in the south. It consists mainly of privately owned game farms offering safari tourism. The eastern section up to ...

of South Africa. In Botswana there is another area running north from the Okavango Delta and the

Makgadikgadi Pan The Makgadikgadi Pan ( Tswana pronunciation ), a salt pan situated in the middle of the dry savanna of north-eastern Botswana, is one of the largest salt flats in the world. The pan is all that remains of the formerly enormous Lake Makgadi ...

towards the border of the

Chobe National Park Chobe National Park is Botswana's first national park, and also the most biologically diverse. Located in the north of the country, it is Botswana's third largest park, after Central Kalahari Game Reserve and Gemsbok National Park, and has one of ...

and then east to the border with Zimbabwe. All this is

semi-arid A semi-arid climate, semi-desert climate, or steppe climate is a dry climate sub-type. It is located on regions that receive precipitation below potential evapotranspiration, but not as low as a desert climate. There are different kinds of semi-ar ...

sandveld Veld ( or ), also spelled veldt, is a type of wide open rural landscape in :Southern Africa. Particularly, it is a flat area covered in grass or low scrub, especially in the countries of South Africa, Lesotho, Eswatini, Zimbabwe and Botswa ...

with little surface water. Droughts occur approximately every seven years. Rainfall, when it occurs, is mostly in the summer, from October through March. The Kalahari ''Acacia''-''Baikiaea'' woodlands are bounded on the north by the

Zambezian Baikiaea woodlands The Zambezian '' Baikiaea'' woodlands is an ecoregion in Africa. It includes dry deciduous forest and woodland, thicket, and grassland, dominated by the tree ''Baikiaea plurijuga''. The ecoregion has a semi-arid climate, and is a transition betwee ...

, and on the east by the

Bushveld The Bushveld (from af, bosveld, af, bos 'bush' and af, veld) is a sub-tropical woodland ecoregion of Southern Africa. It encompasses most of Limpopo Province and a small part of the North West Province of South Africa, the Central and Nort ...

. The Kalahari xeric savanna lies to the south and west, and the

Angolan mopane woodlands Angolan mopane woodlands are situated in southwestern Angola, extending into northern Namibia. This ecosystem surrounds Etosha Pan, which is considered a separate ecoregion. The mopane trees are the main type of vegetation. Location and descrip ...

to the northwest.

Flora

The

flora Flora is all the plant life present in a particular region or time, generally the naturally occurring ( indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or ''skin flora''. ...

depends on the availability of water. The northern section to the west of the Okavango Delta and into Namibia has a moister climate and the ''

Baikiaea plurijuga ''Baikiaea plurijuga'', known as African teak, Mukusi, Rhodesian teak, Zambian teak or Zambesi redwood, is a species of Afrotropical tree from the legume family, the Fabaceae from southern Africa. Description ''Baikiaea plurijuga'' is a medium- ...

'' woodland with bush savanna is dominant. In the

hardveld Veld ( or ), also spelled veldt, is a type of wide open rural landscape in :Southern Africa. Particularly, it is a flat area covered in grass or low scrub, especially in the countries of South Africa, Lesotho, Eswatini, Zimbabwe and Botswa ...

areas to the south, the climate becomes more

arid A region is arid when it severely lacks available water, to the extent of hindering or preventing the growth and development of plant and animal life. Regions with arid climates tend to lack vegetation and are called xeric or desertic. Most a ...

and the plants are dominated by

xerophytic A xerophyte (from Greek ξηρός ''xeros'' 'dry' + φυτόν ''phuton'' 'plant') is a species of plant that has adaptations to survive in an environment with little liquid water, such as a desert such as the Sahara or places in the Alps or the ...

acacia ''Acacia'', commonly known as the wattles or acacias, is a large genus of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa and Australasia. The genus nam ...

.EO Earth
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Fauna

Fauna includes white and

black rhino The black rhinoceros, black rhino or hook-lipped rhinoceros (''Diceros bicornis'') is a species of rhinoceros, native to eastern and southern Africa including Angola, Botswana, Kenya, Malawi, Mozambique, Namibia, South Africa, Eswatini, Tanzania ...

Wild dogs Wild Dogs is an American heavy metal band from Portland, Oregon, formed loosely in 1981 by original members Jeff Mark, Danny Kurth, Matt McCourt, and Pete Holmes. The band has since released six albums, three live albums and one DVD. Wild Dogs ...

and

elephant Elephants are the largest existing land animals. Three living species are currently recognised: the African bush elephant, the African forest elephant, and the Asian elephant. They are the only surviving members of the family Elephantidae a ...

are also notable. Large mammals that migrate through the region include

Blue wildebeest The blue wildebeest (''Connochaetes taurinus''), also called the common wildebeest, white-bearded gnu or brindled gnu, is a large antelope and one of the two species of wildebeest. It is placed in the genus '' Connochaetes'' and family Bovidae, a ...

(''Connochaetes taurinus''), eland (''Taurotragus oryx''),

zebra Zebras (, ) (subgenus ''Hippotigris'') are African equines with distinctive black-and-white striped coats. There are three living species: the Grévy's zebra (''Equus grevyi''), plains zebra (''E. quagga''), and the mountain zebra (''E. z ...

(''Equus burchelli''), buffalo (''Syncerus caffer''), and

red hartebeest The red hartebeest (''Alcelaphus buselaphus caama''), also called the Cape hartebeest or Caama, is a subspecies of the hartebeest found in Southern Africa. More than 130,000 individuals live in the wild. The red hartebeest is closely related to ...

(''Alcelaphus buselaphus''). The region is rich in birdlife including the endemic Bradfield’s hornbill ('' Tockus bradfieldi'').

Threats and preservation

Problems facing the region include the low but growing human population and the increased

cattle Cattle (''Bos taurus'') are large, domesticated, cloven-hooved, herbivores. They are a prominent modern member of the subfamily Bovinae and the most widespread species of the genus ''Bos''. Adult females are referred to as cows and adult ma ...

ranching. The annual movement of the large

herbivore A herbivore is an animal anatomically and physiologically adapted to eating plant material, for example foliage or marine algae, for the main component of its diet. As a result of their plant diet, herbivorous animals typically have mouthp ...

s are now stopped by veterinary control fences aimed at foot-and-mouth disease in cattle, with devastating effects on their ability to move to water sources in times of drought. Commercial hunting is a major element of tourism in the region but illegal hunting presents the main threat to wildlife. Protected areas within the region include

Central Kalahari Game Reserve Central Kalahari Game Reserve is an extensive national park in the Kalahari Desert of Botswana. Established in 1961 it covers an area of (larger than the Netherlands, and almost 10% of Botswana's total land area), making it the second largest game ...

in Botswana, Khaudom National Park in Namibia, and

Nxai Pan National Park Nxai Pan National Park is a national park in north-eastern Botswana, consisting of Nxai Pan, which is one of the Makgadikgadi Pan salt flats. Nxai Pan National Park lies just north of the Maun- Nata main road and adjoins Makgadikgadi Pans Nation ...

, but there is little protection in the hardveld area to the south of the ecoregion. The diamond mine at

Orapa Orapa is a town located in the Central District of Botswana. It is the site of the Orapa diamond mine, the largest diamond-producing mine in the world, and is considered to be the diamond capital of the country. Nearby is another kimberlite mi ...

is in the centre of the region but does not present a threat to wildlife.

References

External links

Wildworld photos
{{DEFAULTSORT:Kalahari Acacia-Baikiaea Woodlands Afrotropical ecoregions Tropical and subtropical grasslands, savannas, and shrublands Ecoregions of Botswana Ecoregions of Namibia Ecoregions of South Africa Ecoregions of Zimbabwe Geography of Botswana Geography of Namibia Geography of South Africa Geography of Zimbabwe