Ecological Succession - GO EAGLES!
Ecological Succession
What is Succession?
? Ecological Succession: the series of
changes in an ecosystem when one
community is replaced by another
community as a result of changes in biotic
and abiotic factors
? Can regenerate a damaged community
? Can create a community in a previously
uninhabited area
? Occurs in all types of ecosystems (forests,
ponds, coral reefs, etc)
Primary Succession
? Primary Succession: the process of creating and
developing an ecosystem in an area that was
previously uninhabited
? Examples of uninhabited areas:
? Sides of volcanoes
? Sites of glacier recession
Primary Succession
? Occurs in areas with no soil
? Is a very slow process
? The process of primary succession starts with
the arrival of living things such as lichens and
mosses that do not need soil to survive
Primary Succession
? These first species are called pioneer species
? Pioneer species: the first organisms to live in a
previously uninhabited area
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