Primary and Secondary Succession

Front

What is primary succession?

Back

Primary succession is the process by which a new community forms in an area where no community previously existed, such as on bare rock.

Front

What are pioneer species?

Back

Pioneer species are the first organisms to colonize a barren environment, such as lichen or algae, during primary succession.

Front

What is secondary succession?

Back

Secondary succession is the process of recovery and re-establishment of a community in an area where a disturbance has occurred but soil and some organisms still exist.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Front

What is an example of primary succession?

Back

An example of primary succession is the formation of a new ecosystem on a volcanic island after lava cools and solidifies.

Front

What is an example of secondary succession?

Back

An example of secondary succession is the regrowth of a forest after a wildfire.

Tags

NGSS.MS-LS2-4

Front

What role do lichens play in primary succession?

Back

Lichens help break down bare rock into soil, making it possible for other plants to grow.

Front

What is the difference between primary and secondary succession?

Back

Primary succession starts from bare rock with no soil, while secondary succession occurs in areas where soil and some organisms are already present.

Front

What is a climax community?

Back

A climax community is a stable and mature ecological community that has reached a steady state through the process of succession.

Tags

NGSS.MS-LS2-3

Front

How does a disturbance affect succession?

Back

Disturbances, such as fires or floods, can reset the ecological succession process, leading to secondary succession.

Front

What is ecological succession?

Back

Ecological succession is the gradual process of change and replacement in the species composition of a community over time.

Tags

NGSS.MS-LS2-4