1. Succession

2. Primary Succession
Defined: Establishment and development of an ecosystem in an uninhabited environment
Volcanic lava creates new land
Glaciers retreating exposing new land

3. Bare Rock
Lava cools and hardens into rock

4. Pioneer Species Defined: First organisms to inhabit new land
Moss and lichen grow on bare rock
Dead matter accumulates with rock pieces
Thin soil layer begins to accumulate

5. The Process Continues Seeds enter the area and grow
Small flowers & shrubs accumulate more organic matter
With new plants, small animals inhabit the area

6. The Process Continues
Small trees take root in the accumulated organic matter
More animals use the trees as a habitat

7. Climax Community Large trees take root New animals inhabit new forests
Overcrowd and out-compete the original smaller trees
New animals inhabit new forests

9. Secondary Succession
Changes that take place after a disturbance occurs in an established ecosystem
Forest fires, floods, tree falls…
Faster scale (soil preexists)

16. Kobe Kuiz
What are the first organisms to live within a newly created patch of land called?
Give examples of the answer to question #1.
What are the final organisms to live within a newly created patch of land called?
How are new areas of land created?
Give a few examples how the process of secondary succession can start.
How does primary and secondary succession differ?