FOREST ECOLOGY
FOREST SUCCESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To create rocks
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To look nice
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To create soil and add nutrients to the environment
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Food for animals
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Detailed explanation-1: -Lichens are considered as pioneer species in primary succession on rocks because they can easily grow on rocks where other plants cannot grow. They produce oxalic acid which induced the weathering of rocks and thus soil is formed.
Detailed explanation-2: -Primary Succession A pioneer species is a species that colonizes an uninhabited area and that starts an ecological cycle in which many other species become established. Over time, a pioneer species will make the new area habitable for other species.
Detailed explanation-3: -Pioneer species are important to the evolution of an ecosystem. The presence of barren land means the land cannot change into soil without the life processes of pioneer species. This is why lichens are such successful pioneers. As the lichens colonize bare rock, they secrete acids that slowly break down rock.