Ecological Succession SP22

Front

What is ecological succession?

Back

Ecological succession is the process by which ecosystems change and develop over time, involving a series of progressive changes in species composition and community structure.

Front

What are the two main types of ecological succession?

Back

The two main types of ecological succession are primary succession and secondary succession.

Front

What is primary succession?

Back

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

Front

What is secondary succession?

Back

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

Front

What is a climax community?

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A climax community is a stable and mature ecological community that has reached a steady state, typically characterized by a diverse array of species.

Front

How does soil formation occur in primary succession?

Back

In primary succession, soil formation occurs gradually as pioneer species like lichens and mosses break down rock and contribute organic material.

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What role do pioneer species play in succession?

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Pioneer species are the first organisms to colonize barren environments, initiating the process of succession by creating conditions suitable for other species.

Front

What is an example of a disturbance that can lead to secondary succession?

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An example of a disturbance leading to secondary succession is a forest fire that clears vegetation but leaves the soil intact.

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Why is secondary succession generally faster than primary succession?

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Secondary succession is generally faster because the soil and some organisms already exist, allowing for quicker recovery and regrowth.

Front

What is the significance of biodiversity in a climax community?

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Biodiversity in a climax community contributes to ecosystem stability, resilience, and the ability to withstand environmental changes.