Biome(biogeography) - Essay Example The savanna includes a variety of soil types that include sands, loam and clay. Laterization is the dominant soil- forming process. Herbivory has important effects on soil nitrogen cycling. Grazer induced increases in N mineralization have generally been observed resulting in increased N availability to plants. Elephant population at high densities can have significant impact on the dynamics and functioning of savanna ecosystems. They have the capacity to transform habitats which results in consequences like reduced population of some species of mammals, birds and plants. Importance: They can sustain long periods of drought and grow in sandy places where there is only between 12 to 15 inches of rain a year. In addition these provide shade for animals, its leaves are edible and are consumed by the animals and its branches are used to make nests and are also used as perches. Importance: These are herbivores, and feed on grasses, fruits, tree leaves, bark, shrubs, and vines. They help to keep the savannas clear by eating shrubs and trees which helps the grass grow. This in turn helps in the survival of other grazing
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