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Primary Succession

Published on Nov 19, 2015

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PRESENTATION OUTLINE

1.

PRIMARY SUCCESSION

2.

STEP 1

ROCKS STUCK IN GLACIERS UNTIL GLACIERS RETREAT.
3.

STEP 2

THIS IS AN EXAMPLE LICHENS BREAKING ROCKS AND THE ROCKS MIX WITH
4.

STEP 3

THESE MOSSES EVENTUALLY REPLACE THE LICHENS AND GO TO THE GROUND
5.

STEP 4

  • The soil layer thickens.
  • Mosses get replace with ferns.
  • Ferns may be replace be grasses and wild flowers.
  • With sufficient soil and shrubs, small trees may begin growing.
6.

STEP 5

AFTER A LONG TIME THE SOIL MAY BE DEEP ENOUGH FOR A FOREST.

Joseph Wootton