Central Zambezian miombo woodlands

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Central Zambezian miombo woodlands
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Miombo woodland in Nkhotakota Wildlife Reserve, Malawi
Ecoregion AT0704.svg
Distribution of the Central Zambezian miombo woodlands
Ecology
Realm Afrotropical
Biome Tropical and subtropical grasslands, savannas, and shrublands
Geography
Area1,184,200 km2 (457,200 sq mi)
Countries Angola, Burundi, Democratic Republic of the Congo, Malawi, Tanzania, Zambia
Conservation
Conservation status vulnerable
Global 200 yes

The densely forested Central Zambezian miombo woodlands that cut across southern central Africa are one of the largest ecoregions on the continent and home to a great variety of wildlife, including many large mammals.

Contents

Location and description

The region covers a large area stretching northeast from Angola, including the southeast section of the Democratic Republic of the Congo, the northern half of Zambia, a large section of western Tanzania, southern Burundi, and northern and western Malawi. In the Congo the ecoregion is almost conterminous with Katanga Province. In Zambia it covers the northern half of the country above Lusaka, including the eastern and western "ears" and the Copperbelt. In Tanzania it covers the western inland provinces between Lake Victoria, Lake Tanganyika and Lake Malawi.

The area is mostly flat plateau, and the soils are poor. There is a tropical climate with a long dry season, up to seven months, which leaves the forest vulnerable to fires, and a rainy season from November to March. The woodland is interspersed with riverside dambos (grassy wetlands), which may constitute up to thirty percent of the region. [1]

Flora

The woodlands contain much typical miombo flora of high trees with shrub and grassland underneath, but has much other plant life too. There are typically more evergreen trees than in most miombo woodlands. The classic miombo trees Brachystegia , Julbernardia , and Isoberlinia dominate the woodlands with other tree species such as Pterocarpus angolensis , Albizia sp. and Afzelia quanzensis . Under the trees lie important areas of plants such as the herbaceous Crotalaria and Indigofera .

Fauna

The fauna is diverse. The grasses, shrubs and trees sustain many large mammals including black rhino, Cape buffalo, African elephants, and antelopes such as elands, sable antelope, roan antelope, Lichtenstein's hartebeest, and sitatunga. Large carnivores include lion (Panthera leo), leopard (Panthera pardus), cheetah (Acinonyx jubatus), spotted hyena (Crocuta crocuta), striped hyena (Hyaena hyaena), African wild dog (Lycaon pictus) and side-striped jackal (Canis adustus). There are also many primates in the woodlands, particularly in Uganda and the Democratic Republic of the Congo, including yellow baboon and chimpanzee. The Gombe Stream National Park chimpanzee reserve is in this ecoregion. The only endemic mammals are Monard's dormouse (Graphiurus monardi), Rosevear's lemniscomys (Lemniscomys roseveari), Ansell's shrew (Crocidura ansellorum) and Upemba shrew (Crocidura zimmeri).

The woodlands are also home to many reptiles and birds. There are two endemic bird species, both found in the area of the ecoregion within the Democratic Republic of the Congo: the Lake Lufira weaver (Ploceus ruweti) and the black-lored waxbill (Estrilda nigriloris).

There are nineteen endemic reptiles and thirteen endemic amphibians; a particularly rich area for these is Upemba National Park.

Urban areas and settlements

Although the ecoregion does include large areas of wilderness and national parkland, there are also areas with quite heavy population densities, particularly in Malawi and Burundi and in densely populated urban areas such as Lusaka in Zambia, around which the forest has been largely cleared for planting, firewood and charcoal production. Most of Zambia north of Lusaka is in this ecoregion, including the Copperbelt cities of Ndola, Kitwe, Chingola, location of the huge Nchanga Mines, Luanshya, and the Central Province former mining town of Kabwe (Broken Hill). In Congo, Katanga has a copper and cobalt mining industry, and there is a railway line north through the province from the capital Lubumbashi. In Tanzania the Lake Tanganyika port of Kigoma is the starting point for a visit to Gombe Stream National Park.

Threats and preservation

Threats to the area include bushmeat hunting, in particular the poaching of elephant and rhino. Fire is damaging throughout the region and where there are human populations fire is more common, including the burning of woodland to create agricultural land or for charcoal, for example in Central Zambia. In the highly urbanised Copperbelt areas of Zambia and the Congo the forest has been extensively cleared for charcoal and farming, and waterways polluted by the mining industry, while the civil war in the Congo has led to considerable damage to the environment there.

The ecoregion includes large areas of national park, game reserves and other protected areas, including:

See also

Related Research Articles

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Lukanga Swamp is a major wetland in the Central Province of Zambia, about 50 km west of Kabwe. Its permanently swampy area consists of a roughly circular area with a diameter of 40 to 50 km covering 1850 km2, plus roughly 250 km2 in the mouths of and along rivers discharging into it such as the Lukanga River from the north-east, plus another 500 km2 either side of the Kafue River to the west and north-west, making 2600 km2 in total. It contains many lagoons such as Lake Chiposhye and Lake Suye but few large channels, and its average depth is only 1.5 m.

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Wildlife of Zambia

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Zambezian flooded grasslands

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South Malawi montane forest–grassland mosaic

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Chitemene

Chitemene, from the ciBemba word meaning “place where branches have been cut for a garden”, is a system of slash and burn agriculture practiced throughout northern Zambia. It involves coppicing or pollarding of standing trees in a primary or secondary growth Miombo woodland, stacking of the cut biomass, and eventual burning of the cut biomass in order to create a thicker layer of ash than would be possible with in situ burning. Crops such as maize, finger millet, sorghum, or cassava are then planted in the burned area.

Angolan miombo woodlands

Angolan miombo woodlands cover most of central Angola and extend into the Democratic Republic of Congo. They are part of the larger miombo ecosystem that covers much of eastern and southern Africa.

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.

Southern Zanzibar–Inhambane coastal forest mosaic Tropical moist broadleaf forest ecoregion of eastern Africa

The Southern Zanzibar-Inhambane coastal forest mosaic, also known as the Southern Swahili coastal forests and woodlands, is a tropical moist broadleaf forest ecoregion of eastern Africa. It is a southern variation of Northern Zanzibar-Inhambane coastal forest mosaic. The ecoregion supports habitats of forest, savanna and swamps. The southern portion of the ecoregion is not as well studied due to the 1977-1992 civil war in Mozambique.

Zambezian cryptosepalum dry forests

The Zambezian cryptosepalum dry forests, also known as the Zambezian evergreen dry forests, is a tropical dry broadleaf forest ecoregion of Southern Africa. It consists of several areas of thick forest in western Zambia and adjacent Angola. It is one of the largest areas of tropical evergreen forest outside the equatorial zone.

Zambezian and mopane woodlands Tropical and subtropical grasslands, savannas, and shrublands ecoregion of southeastern Africa.

The Zambezian and mopane woodlands is a tropical and subtropical grasslands, savannas, and shrublands ecoregion of southeastern Africa.

Southern miombo woodlands

The Southern miombo woodlands is a tropical grasslands and woodlands ecoregion extending across portions of Malawi, Mozambique, Zambia, and Zimbabwe.

The Zambezian region is a large biogeographical region in Africa. The Zambezian region includes woodlands, savannas, grasslands, and thickets, extending from east to west in a broad belt across the continent. The Zambezian region lies south of the rainforests of the Guineo-Congolian region. The Zambezian region is bounded by deserts and xeric shrublands on the southwest, the Highveld grasslands of South Africa to the south, and the subtropical Maputaland forests on the southeast.

References

  1. "Central Zambezian Miombo woodlands". Terrestrial Ecoregions. World Wildlife Fund.