Ecological Succession

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 glacial retreat.

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 or flood.

Front

What are pioneer species?

Back

Pioneer species are the first organisms to colonize a barren environment during the initial stages 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 succession?

Back

Pioneer species help to create soil and modify the environment, making it more suitable for other species to establish.

Front

What is the order of succession?

Back

The order of succession refers to the sequence in which different species colonize an area over time, typically starting with pioneer species and progressing to climax communities.

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, characterized by a diverse array of species.

Front

How does a volcanic eruption lead to primary succession?

Back

A volcanic eruption creates new land by depositing lava, which initially lacks soil, leading to primary succession as organisms colonize the bare rock.