Ecological Succession Review

Front

What is ecological succession?

Back

Ecological succession is the process by which ecosystems change and develop over time, involving a series of stages that lead to a stable community.

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 glacier melts or a volcanic eruption.

Front

What is secondary succession?

Back

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

Front

What are pioneer species?

Back

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

Front

Give an example of a pioneer species.

Back

Lichens and mosses are common examples of pioneer species that can grow on bare rock.

Front

What role do pioneer species play in primary succession?

Back

Pioneer species help to create soil by breaking down rock and contributing organic material as they die and decompose.

Front

What is a climax community?

Back

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

Front

How does soil formation differ between primary and secondary succession?

Back

Soil formation is a key process in primary succession, while in secondary succession, the existing soil remains and is often enriched.

Front

What is the difference in speed between primary and secondary succession?

Back

Secondary succession is generally faster than primary succession because it starts with existing soil and organisms.