Ecology/ EnvSci 5-2 Ecological Succession

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What is ecological succession?

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The process by which ecosystems change and develop over time, involving a series of stages leading to a stable community.

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What is a climax community?

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A final and stable community in an ecological succession that remains relatively unchanged until disrupted by an event.

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What are pioneer species?

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The first organisms to colonize a newly available area, initiating the process of ecological succession.

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What role do lichens play in ecological succession?

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Lichens are often the first organisms to colonize bare rock, breaking it down and contributing to soil formation.

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What is primary succession?

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The type of ecological succession that occurs in lifeless areas where soil has not yet formed, 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 areas where a disturbance has destroyed an existing community but left the soil intact.

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What factors can slow down ecological succession?

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Frequent disturbances, limited water availability, and nutrient-poor soils can slow the process of succession.

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What are intermediate species?

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Species that appear during the stages of ecological succession, typically medium-sized plants that follow pioneer species.

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How do disturbances affect ecological succession?

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Disturbances can reset the succession process, leading to a new series of changes in the ecosystem.

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What is the significance of biodiversity in ecological succession?

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High biodiversity can enhance ecosystem resilience and stability during and after the succession process.