Unit 1 Ecology Succession

Front

What is secondary succession?

Back

Secondary succession is the process of regrowth in an ecosystem after a disturbance, such as a forest fire or human activity, where soil and some organisms still exist.

Front

What is primary succession?

Back

Primary succession is the development of an ecosystem in an area where no soil exists, such as after a volcanic eruption, starting with pioneer species.

Front

What are pioneer species?

Back

Pioneer species are the first organisms to colonize a barren environment in primary succession, such as lichens and mosses.

Front

What is a climax community?

Back

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

Front

What role does biodiversity play in an ecosystem?

Back

Increased biodiversity enhances ecosystem stability, resilience, and productivity, making it more capable of withstanding disturbances.

Front

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

Back

An example of a disturbance that leads to secondary succession is when humans cut down trees in a forested area.

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What is soil's role in succession?

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Soil provides essential nutrients and a habitat for organisms, allowing for the establishment of plant life during both primary and secondary succession.

Front

How does the shrub stage affect the ecosystem?

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The shrub stage modifies the ecosystem, making it more suitable for the growth of trees, such as pine forests.

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What is the difference between primary and secondary succession?

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Primary succession occurs in lifeless areas without soil, while secondary succession occurs in areas where a disturbance has destroyed an existing ecosystem but soil remains.

Front

What is a biological process in ecological succession?

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A biological process in ecological succession involves the gradual replacement of one community by another, leading to increased complexity and stability.