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 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 or flood.

Front

What are pioneer species?

Back

Pioneer species are the first organisms to colonize previously uninhabited or disturbed environments, playing a crucial role in soil formation and ecosystem development.

Front

Give examples of pioneer species in primary succession.

Back

Mosses and lichens are common examples of pioneer species in primary succession.

Front

Why are lichens important in primary succession?

Back

Lichens help to break down rocks to create soil, facilitating the establishment of other plant species.

Front

What is the difference between primary and secondary succession regarding soil presence?

Back

Primary succession starts with no soil, while secondary succession begins in areas where soil is already present.

Front

What type of succession occurs after a forest fire?

Back

Secondary succession occurs after a forest fire, as the soil remains intact and allows for regrowth.

Front

What role do disturbances play in ecological succession?

Back

Disturbances, such as fires or floods, can reset ecological succession, allowing for new species to establish and change the community structure.

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.