Miombo

Last updated
Miombo forest on the Nyika Plateau, Malawi Nyika miombo.jpg
Miombo forest on the Nyika Plateau, Malawi

Miombo woodland is a tropical and subtropical grasslands, savannas, and shrublands biome (in the World Wide Fund for Nature scheme) located in central and southern tropical Africa. It includes three woodland savanna ecoregions (listed below) characterized by the dominant presence of Brachystegia and Julbernardia species of trees, and has a range of climates ranging from humid to semi-arid, and tropical to subtropical or even temperate. [1] The trees characteristically shed their leaves for a short period in the dry season to reduce water loss and produce a flush of new leaves just before the onset of the wet season with rich gold and red colours masking the underlying chlorophyll, reminiscent of autumn colours in the temperate zone.

Contents

Miombo woodlands extend across south-central Africa, running from Angola in the west to Tanzania in the east, including parts of Democratic Republic of the Congo, Malawi, Mozambique, Zambia, and Zimbabwe. They are bounded on the north by the humid Congolian forests, on the northeast by Acacia–Commiphora bushland, and on the south by semi-arid woodlands, grasslands, and savannas. [2]

The woodland gets its name from miombo (plural, singular muombo), the Bemba word for Brachystegia species. Other Bantu languages of the region, such as Swahili and Shona, have related if not identical words, such as Swahili miyombo (singular myombo). These woodlands are dominated by trees of subfamily Detarioideae, particularly miombo (Brachystegia), Julbernardia and Isoberlinia , which are rarely found outside miombo woodlands. [2]

Miombo woodlands can be classified as dry or wet based on the per annum amount and distribution of rainfall. [3] Dry woodlands occur in those areas receiving less than 1000 mm annual rainfall, mostly in Zimbabwe, central Tanzania, eastern and southern Mozambique, Malawi, and southern Zambia. Wet woodlands are those receiving more than 1000 mm annual rainfall, mainly located in northern Zambia, eastern Angola, central Malawi, and western Tanzania. Wet miombo generally has a taller canopy 15 metres or more), more tree cover (60% or more ground cover), and greater species diversity than dry miombo. [2]

Ecoregions

Three ecoregions are currently recognized. [4]

Flora and fauna

Foliage and pods of the mountain mfuti, Brachystegia glaucescens Brachystegia glaucescens.jpg
Foliage and pods of the mountain mfuti, Brachystegia glaucescens

Despite the relatively nutrient-poor soil, long dry season, and low rainfall in some areas, the woodland is home to many species, including several endemic bird species. The predominant tree is miombo ( Brachystegia spp.). It also provides food and cover for mammals such as the African elephant (Loxodonta africana), African wild dog (Lycaon pictus), sable antelope (Hippotragus niger) and Lichtenstein's hartebeest (Sigmoceros lichtensteinii). [6]

People

The miombo woodlands are important to the livelihoods of many rural people who depend on the resources available from the woodland. The wide variety of species provides non-timber products such as fruits, honey, fodder for livestock and fuelwood to various different largely Bantu peoples such as the Bemba people, Lozi people, Yao people, Luvale people, Shona people, and Luba people.

Notes

  1. Gambiza, J; Bond, W; Frost, P.G.H; Higgins, S (2000). "SPECIAL SECTION: LAND USE OPTIONS IN DRY TROPICAL WOODLAND ECOSYSTEMS IN ZIMBABWE". Ecological Economics. 33 (3): 353–368. doi:10.1016/s0921-8009(00)00145-2.
  2. 1 2 3 Ribeiro, N.S., Silva de Miranda, P., Timberlake, J. (2020). Biogeography and Ecology of Miombo Woodlands. In: Ribeiro, N.S., Katerere, Y., Chirwa, P.W., Grundy, I.M. (eds) Miombo Woodlands in a Changing Environment: Securing the Resilience and Sustainability of People and Woodlands. Springer, Cham. https://doi.org/10.1007/978-3-030-50104-4_2
  3. Abdallah, J. M.; Monela, G. G. (2007). "Overview of Miombo Woodlands in Tanzania" (PDF). Working Papers of Finnish Research Institute. 50: 9–23.
  4. Eric Dinerstein, David Olson, et al. (2017). An Ecoregion-Based Approach to Protecting Half the Terrestrial Realm, BioScience, Volume 67, Issue 6, June 2017, Pages 534–545,
  5. Martin, Emma and Neil Burgess. Dry Miombo Woodlands. One Earth. Retrieved 14 June 2024.
  6. Campbell

Related Research Articles

<span class="mw-page-title-main">Geography of Zambia</span>

Zambia is a landlocked country located in Southern Africa, to the east of Angola. It has a total area of 752,618 square kilometres, of which 9 220 km2 is water.

<span class="mw-page-title-main">Woodland</span> Land covered in trees

A woodland is, in the broad sense, land covered with woody plants, or in a narrow sense, synonymous with wood, a low-density forest forming open habitats with plenty of sunlight and limited shade. Some savannas may also be woodlands, such as savanna woodland, where trees and shrubs form a light canopy.

<i>Brachystegia spiciformis</i> Species of legume

Brachystegia spiciformis, commonly known as zebrawood, or msasa, is a medium-sized African tree having compound leaves and racemes of small fragrant green flowers. The tree is broad and has a distinctive amber and wine red colour when the young leaves sprout during spring (August–September). It grows in savanna, both open woodland and closed woodland of Southern and Eastern Africa, mostly Tanzania, Zambia, Zimbabwe, Malawi and Mozambique. The word msasa is commonly used as a proper name in African place names. The word also means 'rough plant' in Swahili. Other common names: mundu, myombo, mtondo (Tanzania), muputu (Zambia). The plant is known in the Venda language as mutsiwa, which means 'the one that is left behind'. An outlying population of Brachystegia has recently been discovered in the Soutpansberg mountains of northern South Africa. This tree is a protected species in South Africa.

<i>Brachystegia</i> Genus of legumes

Brachystegia is a genus of tree of the subfamily Detarioideae that is native to tropical Africa.

<span class="mw-page-title-main">Eastern miombo woodlands</span>

The Eastern miombo woodlands (AT0706) are an ecoregion of grassland and woodland in northern Mozambique, southern Tanzania, and southeastern Malawi.

<span class="mw-page-title-main">Zambezian flooded grasslands</span> Flooded grassland ecoregion in Africa

The Zambezian flooded grasslands is an ecoregion of southern and eastern Africa that is rich in wildlife.

The biomes and ecoregions in the ecology of Zambia are described, listed and mapped here, following the World Wildlife Fund's classification scheme for terrestrial ecoregions, and the WWF freshwater ecoregion classification for rivers, lakes and wetlands. Zambia is in the Zambezian region of the Afrotropical biogeographic realm. Three terrestrial biomes are well represented in the country . The distribution of the biomes and ecoregions is governed mainly by the physical environment, especially climate.

<i>Julbernardia globiflora</i> Species of legume

Julbernardia globiflora is a tropical African tree widespread at moderate altitudes in Miombo woodland to the south and east of the equatorial forest region of the Congo basin. Its common name is mnondo. It is ecologically important over wide areas and is dominant to co-dominant in many types of woodland, always being most successful in drier types of deciduous woodland where there is less competition.

Julbernardia paniculata is a medium to large tropical tree, also known as muchesa. It is widespread over the warmer parts of south tropical Africa, preferring moderately high altitudes, typically 1,000 to 1,200 metres. It is very common over its range and is the dominant woodland tree in Miombo woodland over much of central Zambia and northern Malawi.

<span class="mw-page-title-main">Angolan miombo woodlands</span>

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.

<span class="mw-page-title-main">Central Zambezian miombo woodlands</span>

The Central Zambezian miombo woodlands ecoregion spans southern central Africa. Miombo woodland is the predominant plant community. It is one of the largest ecoregions on the continent, and home to a great variety of wildlife, including many large mammals.

<span class="mw-page-title-main">Southern Zanzibar–Inhambane coastal forest mosaic</span> 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.

<span class="mw-page-title-main">Zambezian evergreen dry forests</span>

The Zambezian evergreen dry forests, also known as the Zambezian Cryptosepalum dry forest, 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.

<span class="mw-page-title-main">Northern Zanzibar–Inhambane coastal forest mosaic</span> Tropical forest ecoregion of East Africa

Northern Zanzibar–Inhambane coastal forest mosaic, also known as the Northern Swahili coastal forests and woodlands, is a tropical moist broadleaf forest ecoregion of coastal East Africa. The ecoregion includes a variety of habitats, including forest, savanna and swamps.

<span class="mw-page-title-main">Zambezian and mopane woodlands</span> 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.

The Mueda Plateau, also known as the Maconde Plateau, is a plateau in Cabo Delgado Province of northeastern Mozambique.

<span class="mw-page-title-main">Southern miombo woodlands</span>

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.

<span class="mw-page-title-main">Dry miombo woodlands</span>

The dry miombo woodlands is an ecoregion in Africa. It has an area of 1,185,632 square kilometres (457,775 sq mi), covering portions of Tanzania, Mozambique, Malawi, Zambia, Zimbabwe, and Angola.

References