Changing Ecosystems Flashcard

Front

What is secondary succession?

Back

Secondary succession is the process of ecological recovery that occurs in an area where a disturbance has destroyed a community but left the soil intact, allowing for the re-establishment of the ecosystem.

Front

What occurs after lava covers the land?

Back

Primary succession occurs after lava covers the land, as it creates a new habitat where no soil exists, starting the ecological process from bare rock.

Front

What is the end product of aquatic succession?

Back

The end product of aquatic succession is typically a new land ecosystem, as the aquatic environment gradually transforms into a terrestrial one.

Front

What type of succession occurs if a mowed field is left unmowed?

Back

If a mowed field is left unmowed, secondary succession would occur as the area gradually returns to a natural state.

Front

What is a climax community?

Back

A climax community is a stable and mature ecological community that has reached a final stage of ecological succession, characterized by a diverse array of species and a balanced ecosystem.

Front

Define primary succession.

Back

Primary succession is the ecological process that occurs in an area where no soil exists, such as after a volcanic eruption or glacial retreat, leading to the formation of a new ecosystem.

Front

What role do disturbances play in ecological succession?

Back

Disturbances, such as fires, floods, or human activities, can reset ecological succession by removing existing communities and allowing new ones to establish.

Front

How does secondary succession differ from primary succession?

Back

Secondary succession occurs in areas where a disturbance has destroyed an existing community but left the soil intact, while primary succession occurs in lifeless areas without soil.

Front

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

Back

An example of a disturbance that can lead to secondary succession is a forest fire that clears vegetation but leaves the soil and seed bank intact.

Front

What is the significance of pioneer species in succession?

Back

Pioneer species are the first organisms to colonize a barren environment, playing a crucial role in soil formation and creating conditions for other species to thrive.