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Lichens are a symbiotic relationship between a fungus and an algae. They are well adapted to survive in harsh conditions. One of the many places they can be found is the Namibian Desert. Fog in the coastal parts of the desert provides the necessary moisture for the organisms' survival. In the Namib they grow on shrubs, rocks and pebbles of the gravel plains. These small organisms can densely cover large areas, forming lichen fields. The desert hosts 120 lichen species. Most of them are rare and a significant number of them occur only there. "Many are endemic to this region and others show affinities between the Namib lichen biota and other fog deserts of the world, such as the Antacama in South America and Baja California in Mexico and California". == Ecological functions == * Soil stabilizers * Plant succession * Bioaccumulators that contribute to nutrient cycling in the forestry of Waterberg biosphere * Food and habitat for other organisms 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lichens in Namibia」の詳細全文を読む スポンサード リンク
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