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Aripo Savannas
Aripo savannah is a tropical savanna ecosystem in the northeast of Trinidad. It is a rare example of savannas formed due to edaphic factors, i.e. the growth of trees is restricted not by climate but by a shallow layer of clay. This impervious hardpan clay layer restricts the growth of roots and magnifies both seasonal flooding and seasonal drought. These factors combined with regular exposure to the uninterrupted tropical sun make the savannas a hostile environment for most plants and animals. Although the edaphic layer is distinct, the Aripo savannas is ecologically similar to other tropical hyperseasonal savannas, such as those found within Gran Sabana in Venezuela or Cerrado in Brazil. In fact, some of the dominant grassland species are shared between all three savannas. The savannas are home to many rare plants, including at least two endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Savanna
Tropical and subtropical grasslands, savannas, and shrublands is a terrestrial biome defined by the World Wide Fund for Nature. The biome is dominated by grass and/or shrubs located in semi-arid to semi-humid climate regions of subtropical and tropical latitudes. Description Grassland is dominated by grass and other herbaceous plants. Savanna is grassland with scattered trees. Shrubland is dominated by woody or herbaceous shrubs. Large expanses of land in the tropics do not receive enough rainfall to support extensive tree cover. The tropical and subtropical grasslands, savannas, and shrublands are characterized by rainfall levels between per year. Rainfall can be highly seasonal, with the entire year's rainfall sometimes occurring within a couple of weeks. African savannas occur between forest or woodland regions and grassland regions. Flora includes acacia and baobab trees, grass, and low shrubs. Acacia trees lose their leaves in the dry season to conserve moisture, while t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
