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 the two main types of ecological succession?

Back

The two main types of ecological succession are primary succession and secondary succession.

Front

What is primary succession?

Back

Primary succession occurs in lifeless areas where soil has not yet formed, such as after a volcanic eruption or glacial 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.

Front

What are pioneer species?

Back

Pioneer species are the first organisms to colonize a barren environment in primary succession, often including lichens and mosses.

Front

What role do lichens play in primary succession?

Back

Lichens help to break down rock and contribute to soil formation, making the environment more suitable for other plants.

Front

What is the order of plant growth in primary succession after a volcanic eruption?

Back

The order is Lichens → Grasses → Shrubs → Trees.

Front

What is the goal of pioneer species in primary succession?

Back

The goal of pioneer species is to rebuild soil and create conditions suitable for other species to thrive.

Front

What type of succession occurs after a volcanic eruption?

Back

Primary succession occurs after a volcanic eruption.

Front

Why do larger plants replace lichens and mosses during succession?

Back

Larger plants compete more successfully for resources like space, sunlight, and soil nutrients.