ecological succession mini

First species to arrive in an area are called ?

• invasive species

• abiotic components

• pioneer species

• parasites

Series of changes after an existing community is destroyed by natural disaster or man made destruction is called?

• primary succession

• secondary succession

• commensalism

• competition

pioneer species occurring in areas of primary succession are

• grasses and cow

• wildflowers and wild hogs

• trees and fleas

• lichens and moss

Series of changes where other organisms have not previously lived

• primary succession
• secondary succession
• commensalism
• competition

Which stage will lichen and moss start to appear in?

• A

• B

• C

• D

Pictures 1-8 represent what type of succession taking place?

• primary succession

• secondary succession

• tertiary succession

• variable succession

the illustration (#8) shows the return of a _________ _________

• pioneer species

• climax community

• only biotic factors

• only abiotic factors

Which stage represents a climax community ?

• A

• B

• C

• D

What is ecological succession?

• A slow change in an environment that takes 100s of years

• A change in an environment over a few days

• No change
• Abiotic change

Why does primary succession take longer to reach climax community?

• Because trees do not perform photosyntheses.
• Because climax community is in a forrest.
• Because primary succession already has soil
• Because primary succession does not have soil