Balance

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Balance Change in Ecosystems Equilibrium the
state of an ecosystem in which the biotic and
abiotic features remain relatively constant
over a long period of time
2
Balance Change in Ecosystems Equilibrium the
state of an ecosystem in which the biotic and
abiotic features remain relatively constant
over a long period of time Succession the
observed changes over time in an ecosystem,
following a disturbance
3
Balance Change in Ecosystems Equilibrium the
state of an ecosystem in which the biotic and
abiotic features remain relatively constant
over a long period of time Succession the
observed changes over time in an ecosystem,
following a disturbance Disturbance
examples forest fire volcanic
eruption hurricane human disturbance
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Balance Change in Ecosystems Stages of
Succession after a disturbance leaving only bare
rock
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Balance Change in Ecosystems Stages of
Succession after a disturbance leaving only bare
rock stage 1 lichen and moss
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Balance Change in Ecosystems Stages of
Succession after a disturbance leaving only bare
rock stage 1 lichen and moss stage 2 annual
plants (create seeds die at the end of each
year)
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Balance Change in Ecosystems Stages of
Succession after a disturbance leaving only bare
rock stage 1 lichen and moss stage 2 annual
plants stage 3 small perennials (live year
after year)
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Balance Change in Ecosystems Stages of
Succession after a disturbance leaving only bare
rock stage 1 lichen and moss stage 2 annual
plants stage 3 small perennials stage 4
scrub (shrubs small trees)
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Balance Change in Ecosystems Stages of
Succession after a disturbance leaving only bare
rock stage 1 lichen and moss stage 2 annual
plants stage 3 small perennials stage 4
scrub stage 5 mixed forest (remains stable in
this stage)