What do you understand by ecological succession?

Ecological succession refers to the gradual changes that occur in an ecosystem over time. It may either begin by the formation of a new habitat or by the damage of the existing habitat due to fires, floods, etc. Ecological succession is of two types:

  • Primary Succession: This involves a series of changes occurring in an area that was never inhabited before. For eg., a bare rock
  • Secondary Succession: This involves a series of changes occurring in an area that was colonized before but was damaged due to some natural disaster.

Examples of ecological succession:

  • Acadia National Park: This national park suffered a wildfire and was completely destroyed. The forests initially had evergreen trees. After the ecological succession, deciduous forests dominate the area.

Coral Reef: The small coral polyps colonized the rocks. These polyps divided to create coloniesof coral reefs. This is an examples of primary succession.

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