Tropical and subtropical grasslands, savannas, and shrublands: Difference between revisions
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{{Biome}} |
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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]]. [[Grassland]]s are dominated by [[grass]] and other [[herb]]aceous plants. [[Savanna]]s are grasslands with scattered [[tree]]s. [[Shrubland]]s are dominated by woody or herbaceous [[shrub]]s. |
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Rainfall in tropical and subtropical grasslands, savannas, and shrublands can be highly seasonal, with the entire year's rainfall sometimes occurring within a couple of weeks. Much of the plant life on savannas is adapted to seasonal aridity. Adaptations to the dry climate include [[annual plant|herbaceous annuals]], which die in the dry season and re-grow from seed each year, and [[perennial plant]]s which grow long tap roots to reach groundwater, or [[bulb]]s to store water. |
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Tropical and subtropical grasslands, savannas, and shrublands occur on all continents but Antarctica. They are widespread on [[Africa]], and are also found in [[India]], the northern parts of [[South America]] and [[Australia]], and the southern [[United States]]. |
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'''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 millimeters of rain per year. Flora includes: |
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*[[Acacia]] (Tree) |
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**Loses leaves in dry season to conserve moisture |
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**Leafy canopy in rainy season (flattened by winds) |
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*[[Baobab]] (Tree) |
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**Stores water in trunk |
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**Thick bark to protect it from fires in dry season |
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**Long Tap roots to reach underground moisture |
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**Few leaves to reduce water loss through transpiration |
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*[[Grass]] |
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**Grow Quickly to 3 or 4 meters in clumps |
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**Shoots die in dry season leaving only roots |
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*Low Shrubs |
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**Drought resistant |
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**Small |
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**Thorns not leaves |
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==Tropical and subtropical grasslands, savannas, and shrublands ecoregions== |
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{{Afrotropic tropical and subtropical grasslands, savannas, and shrublands}} |
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{{Australasia tropical and subtropical grasslands, savannas, and shrublands}} |
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{{Indomalaya tropical and subtropical grasslands, savannas, and shrublands}} |
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{{Nearctic tropical and subtropical grasslands, savannas, and shrublands}} |
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{{Neotropic tropical and subtropical grasslands, savannas, and shrublands}} |
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{{Oceania tropical and subtropical grasslands, savannas, and shrublands}} |
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==External links== |
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*[http://www.panda.org/news_facts/education/university/habitats/index.cfm (World Wildlife Fund)] |
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{{Terrestrial biomes}} |
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{{ecozones}} |
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[[Category:Tropical and subtropical grasslands, savannas, and shrublands| ]] |
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[[da:Savanne]] |
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[[de:Savanne]] |
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[[es:Sabana]] |
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[[fr:Prairies, savanes et brousses tropicales et subtropicales]] |
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[[gl:Sabana]] |
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[[io:Savano]] |
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[[lt:Savana]] |
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[[nl:Savanne]] |
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[[ja:サバナ]] |
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[[no:Savanne]] |
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[[pl:Sawanna]] |
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[[pt:Savana]] |
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[[sv:Savann]] |
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Revision as of 16:04, 30 October 2008
hi guys i dont know wat a tropical grassland is so look it up on google