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Fire & Succession Worksheet

1a. Mostly grass with some sagebrush.

The 4 pictures above represent a series of events that occur in the grass and sagebrush lands in central and eastern Oregon and Washington. Two kinds of populations are involved: grasses of various species and sagebrush shrubs.

1b. The number of sagebrush shrubs increases as succession occurs.


1c. A range fire spreads over the landscape, burning everything above ground. White roots indicate that the roots have survived, so the plant can regrow next growing season.


1d. The next growing season begins. Grass especially responds to periodic fires, resprouting quickly after a fire. The sagebrush also has survived but is slower to regrow after fire.

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