SEV2.c 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 species replacements.

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 the process of ecological succession.

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 primary succession differ from secondary succession?

Back

Primary succession starts on bare rock or lifeless areas, while secondary succession occurs in areas where a disturbance has happened but soil remains.

Front

What role do pioneer species play in succession?

Back

Pioneer species help to create soil and conditions that allow other species to establish and grow.

Front

What is a disturbance in ecological terms?

Back

A disturbance is an event that changes a community by removing organisms or altering resource availability.

Front

Can ecological succession occur in aquatic environments?

Back

Yes, ecological succession can occur in aquatic environments, such as the colonization of a pond by plants and animals.

Front

What is the significance of biodiversity in a climax community?

Back

Biodiversity in a climax community contributes to ecosystem stability and resilience against disturbances.