SEV2.c Ecological Succession

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What is ecological succession?

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Ecological succession is the process by which ecosystems change and develop over time, involving a series of species replacements.

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What is primary succession?

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Primary succession occurs in lifeless areas where soil has not yet formed, such as after a volcanic eruption or glacier retreat.

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What is secondary succession?

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Secondary succession occurs in areas where a disturbance has destroyed an existing community but left the soil intact, such as after a forest fire.

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What are pioneer species?

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Pioneer species are the first organisms to colonize a barren environment in the process of ecological succession.

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What is a climax community?

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A climax community is a stable and mature ecological community that has reached the final stage of succession.

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How does primary succession differ from secondary succession?

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Primary succession starts on bare rock or lifeless areas, while secondary succession occurs in areas where a disturbance has happened but soil remains.

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What role do pioneer species play in succession?

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Pioneer species help to create soil and conditions that allow other species to establish and grow.

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What is a disturbance in an ecological context?

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A disturbance is an event that significantly alters the structure of an ecosystem, such as fire, flood, or human activity.

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What is the significance of a climax community?

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A climax community represents a stable ecosystem that can sustain itself over time, providing habitat and resources for various species.

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Can ecological succession occur in aquatic environments?

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Yes, ecological succession can occur in aquatic environments, such as lakes and ponds, where changes in water levels or sediment can lead to succession.