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Tropical and subtropical grasslands, savannas, and shrublands are a grassland biome located in semi-arid to semi-humid climate regions of subtropical and tropical latitudes. Grasslands are dominated by grass and other herbaceous plants. Savannas are grasslands with scattered trees. Shrublands are dominated by woody or herbaceous shrubs.
Rainfall in tropical and subtropical grasslands, savannas, and shrublands is between 450 and 1500 millimeters (20 to 60 inches) a year[citation needed] , and can be highly seasonal, with the entire year's rainfall sometimes occurring within a couple of weeks. Tropical and subtropical grasslands, savannas, and shrublands occur on all continents but Antarctica. They are widespread on Africa, and are also found all throughout South Asia, the northern parts of South America and Australia, and the southern United States.
African Savannas occur between forest or woodland regions and grassland regions. The climate varies, with an average temperature of 27°C with peaks of 30°C in April and October, and between 300 and 1500 millimetres of rain per year. Flora includes:
- Acacia (Tree)
- Loses leaves in dry season to conserve moisture
- Leafy canopy in rainy season (flattened by winds)
- Baobab (Tree)
- Stores water in trunk
- Thick bark to protect it from fires in dry season
- Long Tap roots to reach underground moisture
- Few leaves to reduce water loss through transpiration
- Grass
- Grow Quickly to 3 or 4 meters in clumps
- Shoots die in dry season leaving only roots
- Low Shrubs
- Drought resistant
- Small
- Thorns not leaves
[edit] Tropical and subtropical grasslands, savannas, and shrublands ecoregions
Afrotropic Tropical and subtropical grasslands, savannas, and shrublands
|
| Angolan Miombo woodlands |
Angola |
| Angolan Mopane woodlands |
Angola, Namibia |
| Ascension scrub and grasslands |
Ascension Island |
| Central Zambezian Miombo woodlands |
Angola, Burundi, Democratic Republic of the Congo, Malawi, Tanzania, Zambia |
| East Sudanian savanna |
Cameroon, Central African Republic, Chad, Democratic Republic of the Congo, Eritrea, Ethiopia Sudan, Uganda |
| Eastern Miombo woodlands |
Mozambique, Tanzania |
| Guinean forest-savanna mosaic |
Benin, Burkina Faso, Cameroon, Gambia, Ghana, Guinea, Guinea Bissau, Côte d'Ivoire, Nigeria, Senegal, Togo |
| Itigi-Sumbu thicket |
Tanzania, Zambia |
| Kalahari Acacia-Baikiaea woodlands |
Botswana, Namibia, South Africa, Zimbabwe |
| Mandara Plateau mosaic |
Cameroon, Nigeria |
| Northern Acacia-Commiphora bushlands and thickets |
Ethiopia, Kenya, Sudan, Uganda |
| Northern Congolian forest-savanna mosaic |
Cameroon, Central African Republic, Democratic Republic of the Congo, Sudan, Uganda |
| Sahel |
Burkina Faso, Cameroon, Chad, Eritrea, Ethiopia, Mali, Mauritania, Niger, Nigeria, Senegal, Sudan |
| Serengeti |
Kenya, Tanzania |
| Somali Acacia-Commiphora bushlands and thickets |
Eritrea, Ethiopia, Kenya, Somalia, Sudan |
| Southern Acacia-Commiphora bushlands and thickets |
Kenya, Tanzania |
| Southern Africa bushveld |
Botswana, South Africa, Zimbabwe |
| Southern Congolian forest-savanna mosaic |
Angola, Democratic Republic of the Congo |
| Southern Miombo woodlands |
Malawi, Mozambique, Zambia, Zimbabwe |
| Sudan grass-belt |
southern Senegal, southern Mali, Guinea, northern Cote d'Ivoire, Burkina Faso, northern Ghana, northern Benin, northern Togo, central Nigeria, northern Cameroon, southern Chad, southern Sudan, western Ethiopia |
| Saint Helena scrub and woodlands |
Saint Helena |
| Victoria Basin forest-savanna mosaic |
Burundi, Kenya, Rwanda, Tanzania, Uganda |
| West Sudanian savanna |
Benin, Burkina Faso, Gambia, Ghana, Guinea, Côte d'Ivoire, Niger, Nigeria, Senegal |
| Western Congolian forest-savanna mosaic |
Angola, Democratic Republic of the Congo, Republic of the Congo |
| Western Zambezian grasslands |
Angola, Zambia |
| Zambezian and Mopane woodlands |
Botswana, Malawi, Mozambique, Namibia, South Africa, Swaziland, Zambia, Zimbabwe |
| Zambezian Baikiaea woodlands |
Angola, Botswana, Namibia, Zambia, Zimbabwe |
Neotropic Tropical and subtropical grasslands, savannas, and shrublands
|
| Beni savanna |
Bolivia |
| Campos Rupestres montane savanna |
Brazil |
| Cerrado |
Bolivia, Brazil, Paraguay |
| Clipperton Island shrub and grasslands |
Clipperton Island is an overseas territory of France |
| Córdoba montane savanna |
Argentina |
| Guyanan savanna |
Brazil, Guyana, Venezuela |
| Gran Chaco |
Argentina, Brazil, Paraguay |
| Llanos |
Colombia, Venezuela |
| Uruguayan savanna |
Argentina, Brazil, Uruguay |
[edit] See also
[edit] External links
