Ecological Succession

Front

What is ecological succession?

Back

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

The type of succession that occurs in lifeless areas where soil has not yet formed, such as after a glacier melts.

Front

What is secondary succession?

Back

The type of succession that occurs in areas where a disturbance has destroyed an existing community but left the soil intact.

Front

What are pioneer species?

Back

The first organisms to colonize an area during succession, often including mosses and lichens.

Front

Give an example of a pioneer species in primary succession.

Back

Mosses and lichens.

Front

What happens during the first stage of primary succession?

Back

Bare rock is colonized by pioneer species, which help to create soil.

Front

What is a climax community?

Back

A stable and mature community that undergoes little change in species composition.

Front

How does secondary succession differ from primary succession?

Back

Secondary succession occurs in areas where soil exists, while primary succession starts from bare rock.

Front

What role do disturbances play in ecological succession?

Back

Disturbances can reset succession, allowing for new species to colonize and change the community structure.