practice flashcard 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 are the two main types of ecological succession?

Back

Primary succession and secondary succession.

Front

What is primary succession?

Back

Primary succession occurs in an area that has never been colonized before, such as bare rock after a volcanic eruption.

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 primary succession, such as mosses and lichens.

Front

Why does secondary succession occur faster than primary succession?

Back

Secondary succession occurs faster because the soil and some organisms are already present, allowing for quicker regrowth.

Front

What role do disturbances play in ecological succession?

Back

Disturbances, such as fires or floods, can reset succession, allowing new species to establish and change the ecosystem.

Front

What is a climax community?

Back

A climax community is a stable, mature ecological community that has reached the final stage of succession.

Front

How does biodiversity change during succession?

Back

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

Front

What is the difference between primary and secondary succession?

Back

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