Ecological Succession

First species to arrive in an area

• invasive species

• abiotic components

• pioneer species

• parasites

Series of changes where other organisms have not previously lived

• primary succession

• secondary succession

• commensalism

• competition

Series of changes where an existing community is destroyed

• primary succession

• secondary succession

• commensalism

• competition

Stable, final stage of succession

• adaptation

• pioneer species

• niche

• climax community

First species occuring in areas of primary succession are mosses and

• grasses

• wildflowers

• trees

• lichens

Succession type?

• primary succession

• secondary succession

• tertiary succession

• variable succession

Succession type?

• primary succession

• secondary succession

• tertiary succession

• variable succession

Final illustration (#8) shows

• pioneer species

• climax community

• only biotic factors

• only abiotic factors

Plant life starting to grow on a volcano

• primary succession

• secondary succession

• tertiary succession

• variable succession

What is ecological succession?

• A slow change in an environment

• A change that takes days in an environment

• No change

• Abiotic change