• Ecological succession is the process in which a community changes through time.
  • It begins with a plant that must be able to grow on new land with minimal soil or nutrients.
  • The first species to colonize a disturbed area are called pioneer species.
  • They change the environment and pave the way for other species to come into the area.
  • Early ecologists thought that a community always goes through the same series of stages during succession.
  • They also assumed that succession always ends with a final stable stage.
  • Today, most ecologists no longer hold these views.
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