Ecological Succession

Front

Primary succession occurs in an area that has:

Back

no soil

Front

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

Back

pioneer species

Front

What is an example of an area that is likely to undergo primary succession?

Back

Glaciers melt and leave exposed rock

Front

Correct order of ecological succession: grass - shrubs - lichens - trees, lichens - shrubs - grasses - trees, lichens - grasses - shrubs - trees, grasses - lichens - shrubs - trees

Back

lichens - grasses - shrubs - trees

Front

What is the main difference between primary and secondary ecological succession?

Back

Primary begins WITHOUT soil; Secondary begins WITH soil

Front

What does not contribute directly to soil formation? Options: lichens, decomposition of organisms, volcanic eruptions, erosion of rock by weather.

Back

volcanic eruptions

Front

What is an increase of biodiversity over time, after a natural or manmade disturbance?

Back

ecological succession

Front

What is an example of a disturbance that could bring about secondary succession?

Back

Humans cut down many trees in a small region

Front

What is the term that describes a steady and stable community?

Back

climax community

Front

What type of disturbance can be beneficial to ecosystems and communities? Options: Volcanic Eruption, Fire, Invasive Species, Flood

Back

Fire