Ecological Succession

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What is ecological succession?

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The gradual, natural change in an ecosystem over time, where one community of organisms replaces another.

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What are pioneer species?

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Species that are the first to colonize previously disrupted or damaged ecosystems, initiating the ecological succession process.

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What is primary succession?

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The type of ecological succession that occurs in an area where no soil exists, such as after a volcanic eruption.

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What is secondary succession?

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The type of ecological succession that occurs in an area where a disturbance has destroyed an existing ecosystem but soil and some organisms still remain.

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What role do lichens play in primary succession?

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Lichens are pioneer species that help break down rock into soil, facilitating the growth of other plants.

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How does species diversity change during ecological succession?

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As succession progresses, the number of species typically increases, leading to a more complex and stable ecosystem.

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What is a climax community?

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A stable and mature ecological community that undergoes little change in species composition.

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What factors can influence the rate of ecological succession?

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Factors include climate, soil type, availability of species, and disturbances such as fires or human activities.

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What is the difference between primary and secondary succession?

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Primary succession starts on bare rock without soil, while secondary succession occurs in areas where soil is present after a disturbance.

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What is a disturbance in ecological terms?

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