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ecological succession concept exploration and worksheet with solutions
Typology: Exercises
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Ecosystems are constantly changing in response to natural and human disturbances. As an ecosystem changes, older inhabitants gradually die out and new organisms move in, causing further changes in the community. This series of predictable changes that occurs in a community over time is called ecological succession. Ecological succession is slow and gradual; it occurs over a period of many years. As ecological succession occurs, types of species present in a community will change in response to changing environmental conditions such as fires, climate change, and the clearing of forests to plant crops. Pioneer species arrive first. As environmental conditions change, they are replaced by other species, and later these species may be replaced by another set of species. Primary Succession : Succession that occurs on surfaces where no soil exists. It leads to the gradual establishment of biotic communities in lifeless areas.
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