Ecological Succession #4

Front

What are pioneer species?

Back

Pioneer species are the first organisms to colonize an area and begin the process of ecological succession.

Front

Give an example of a pioneer species in primary succession.

Back

Mosses and lichens are examples of pioneer species in primary succession.

Front

What is primary succession?

Back

Primary succession is the process of ecological change that occurs in an area where no soil exists, such as after a glacier melts.

Front

What is secondary succession?

Back

Secondary succession is the process of ecological change that occurs in an area where soil is present but has been disturbed, such as after a forest fire.

Front

What is the first stage of primary succession?

Back

The first stage of primary succession is the colonization of bare rock by pioneer species.

Front

What type of environment is likely to undergo primary succession?

Back

An environment like a glacier that melts and leaves exposed rock is likely to undergo primary succession.

Front

What is the role of lichens in primary succession?

Back

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

Front

What is a climax community?

Back

A climax community is a stable and mature ecological community that has reached the final stage of succession.

Front

How does soil formation occur during primary succession?

Back

Soil formation occurs as pioneer species die and decompose, adding organic material to the substrate.

Front

What is the difference between primary and secondary succession?

Back

Primary succession occurs in lifeless areas without soil, while secondary succession occurs in areas where soil is already present.