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What is ecological
succession? (Ch.4.3)•The series of predictable changes that occurs in a community over time.
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Primary Succession• It occurs when new growth/plants appear on new land or soil. For example new plants growing on newly deposited volcanic rock.
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Pioneer species is the first species to colonize barren areas.
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Primary succession
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Secondary succession
• Occurs when there is a disruption in an existing community (where plants already live), and new species of plants come about.
• Example: After forest fire
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Secondary Succession
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Climax Communities
• A climax community is an ecological community that has reached the final stage of ecological succession.• Secondary Succession in a healthy ecosystem often reproduces the original
climax community
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Agriculture
Invasive species