Friday, August 31, 2007

SHW - Pg. 10

11. What is the difference b/t primary and secondary succession?
- PS: Type of ecological succession that occurs in an area where there was originally no organisms.
- SS: Type of succession that occurs where an existing community has been severely cleared by some disturbance.

12. What is responsible for causing most secondary succession?
- Competition among individual species for available resources

13. What is biogeography?
- The study of the past and present distribution of species.

14. What is the relationship b/t island size and species richness?
- Species richness is related to a community’s geographic size. Species richness on islands depends on island size and distance from the mainland.

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