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 are pioneer species?

Back

Pioneer species are the first organisms to colonize previously disrupted or damaged ecosystems, often initiating the process of ecological succession.

Front

What is primary succession?

Back

Primary succession occurs in lifeless areas where there is no soil, 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 ecosystem but left the soil intact, such as after a forest fire or human activity.

Front

Give an example of a pioneer species.

Back

Mosses and lichens are common examples of pioneer species that can grow on bare rock.

Front

What type of soil is found in primary succession?

Back

Primary succession occurs in areas with no soil.

Front

What is a disturbance in the context of ecological succession?

Back

A disturbance is an event that significantly alters an ecosystem, such as fire, flooding, or human activities, leading to changes in species composition.

Front

What appears first in primary succession?

Back

Pioneer species, such as lichens and mosses, appear first in primary succession.

Front

What appears last in ecological succession?

Back

Hardwoods, such as Maple and Oak trees, typically appear last in the process of ecological succession.

Front

What role do humans play in secondary succession?

Back

Humans can cause disturbances, such as deforestation, that lead to secondary succession by altering the landscape and ecosystem.