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 species replacements.

Front

What is primary succession?

Back

Primary succession occurs in an area where no soil exists, such as after a volcanic eruption or glacier retreat.

Front

What is secondary succession?

Back

Secondary succession occurs in areas where soil is present but the ecosystem has been disturbed, such as after a forest fire or human activity.

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 is the main difference between primary and secondary succession?

Back

Primary succession begins without soil, while secondary succession begins with soil.

Front

What is a disturbance in the context of ecological succession?

Back

A disturbance is an event that disrupts an ecosystem, leading to changes in species composition and community structure.

Front

What is an example of a disturbance that leads to secondary succession?

Back

Human activities, such as deforestation, can lead to secondary succession.

Front

What role do decomposers play in ecological succession?

Back

Decomposers break down dead organic matter, enriching the soil and facilitating the growth of new plants.

Front

How does biodiversity change during succession?

Back

Biodiversity typically increases during succession as more species establish and interact within the ecosystem.