Environmental Science Chapter 5 Section 3

Front

What is old-field succession?

Back

A type of ecological succession that occurs on abandoned farmland, where the ecosystem gradually develops over time.

Front

Define climax community.

Back

A final and stable community in an ecological succession that remains relatively unchanged until disrupted by an event.

Front

What is secondary succession?

Back

A type of ecological succession that occurs in an area where a disturbance has destroyed an existing ecosystem but soil and some organisms still remain.

Front

What type of vegetation is expected on an abandoned farm after 150 years?

Back

Tall, mature oak trees.

Front

Define primary succession.

Back

A type of ecological succession that occurs on a surface where no ecosystem existed before, such as after a volcanic eruption.

Front

What are pioneer species?

Back

Species that are the first to colonize previously disrupted or damaged ecosystems, initiating the ecological succession process.

Front

What is the difference between primary and secondary succession?

Back

Primary succession occurs on bare rock or soil without previous life, while secondary succession occurs in areas where an ecosystem has been disturbed but soil and organisms still exist.

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 role do climax communities play in ecosystems?

Back

Climax communities represent the final stage of ecological succession, providing stability and a diverse habitat for various species.

Front

What factors can disrupt a climax community?

Back

Natural events like wildfires, floods, or human activities such as deforestation can disrupt a climax community.