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Afro-Alpine zone

region, East Africa

Quick Summary

The Afro-Alpine zone refers to a specific vegetation zone found on high mountains in East Africa, characterized by unique plant life adapted to cold, high-altitude conditions. This zone is distinct from the surrounding lower-altitude climates and is influenced by factors like decreasing temperatures and increasing precipitation with elevation.12

Key features of the Afro-Alpine zone include:
* Vegetation: Dominated by hardy plants such as tree groundsel, giant lobelia, tussocky grasslands, and everlastings. Mosses and lichens are found at higher elevations, with bare rock and ice above.12
* Climate: While the surrounding regions may be dry, the Afro-Alpine zone experiences high rainfall, though it can become desert-like at the highest altitudes. Temperatures seldom rise above freezing on the highest peaks.2
* Adaptation: Plants here have adapted to cold, harsh conditions, with some species showing gigantism. Despite geographical separation, Afro-Alpine plants on different mountains are often closely comparable.2
* Fauna: Mammals like leopards and various antelopes can be found here, alongside smaller inhabitants such as hyraxes and groove-toothed rats. Birds like the lammergeier and sunbirds are also present.23

This unique zone is a result of plants retreating to mountains during post-Pleistocene warming periods, where they have been preserved and transformed.2

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