1. Ecological Succession and Biomes
Ames Allen-King

2. Ecological Succession
Changes in an ecosystem
Caused by organisms having biotic (living) and abiotic (nonliving) interactions
Primary succession
Secondary Succession

3. Primary Succession
Occurs in an environment where no organisms previously existed
Example: Volcan Osorno, Chile

4. Secondary Succession Where ecosystems already exist, but are replaced
Not necessarily a change in organism
Example: Forest Fire

5. Biomes A type of ecosystem found around the world
Rainfall and Temperature determine what kind of ecosystem exists.
All the biomes in the world together = Biosphere

6. The Major Biomes Desert Grassland Shrubland Temperate Deciduous Forest
Tropical Rainforest
Tundra

7. Deserts Rainfall very low Warm/hot days with cold nights
Very few plants

8. Desert (Continued)

9. Grassland Rainfall low Warm/hot summers but cold winters
Mostly shorter grasses and herbs

10. Grassland Continued

11. Shrubland Cool, wet winters with hot dry summers
Frequent fires during summer
Draught-resistant plants
Evergreen foliage

12. Shrubland (Continued)

13. Temperate Deciduous Forest
Moderate rainfall
Warm summers and cool winters
Mainly trees that shed their leaves in winter

14. Temperate Deciduous Forest (Continued)

15. Tropical Rainforest Large amounts of rainfall
Hot or very hot year-round
Tall evergreen trees, smaller trees, and shrubs and herbs dominate.

16. Tropical Rainforest (Continued)

17. Tundra Very low temperatures Little precipitation, mainly snow
Small trees
Mosses and lichens frequent

18. Tundra (Continued)

19. Bibliography http://www.blueplanetbiomes.org/desert.htm
volcan%20osorno.htm
oming_near_Shoshones.jpg
profile/

20. Bibliography (Continued)
ecosystems/temperate-forest-ecosystem/
Allott, Andrew. Biology for the IB Diploma: Standard and Higher Level. 2nd ed.     Oxford: Oxford University Press, 2011.