Ecological Succession (Primary and Secondary)

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

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.

Front

What are pioneer species?

Back

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

Front

What role do pioneer species play in primary succession?

Back

Pioneer species help to create soil by breaking down rock and accumulating organic material.

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

True or False: Climax communities are always large forests.

Back

False. Climax communities can vary in type and size, including grasslands and deserts.

Front

What is the difference between primary and secondary succession?

Back

Primary succession starts from bare rock without soil, while secondary succession begins in areas where soil is already present.

Front

How does succession affect biodiversity?

Back

Succession generally increases biodiversity as new species colonize and establish themselves in the ecosystem.