Tropical lichens growing on tree bark, Malaysia
Lichens must compete with plants for access to sunlight, but because of their small size and slow growth, they thrive in places where higher plants have difficulty growing. Lichens are often the first to settle in places lacking soil, constituting the sole vegetation in some extreme environments such as those found at high mountain elevations and at high latitudes. Some survive in the tough conditions of deserts, and others on frozen soil of the Arctic regions.
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Photo credit: © Scenics & Science / Alamy / Afripics
License: Licensed
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Keywords: bark, botany, environmental, growing, indicator, lichens, malaysia, symbiosis, tree, tropical
