In class, I described two examples of a keystone species and its effect on its particular community: the Sea otter and the Grey Wolf.   Turn in by Friday, OCT 12.

(4) 1.  Select one off these and explain why it is a keystone species. How does its presence or absence effect its community?

(1) 2. Find another example, not described at length in class. Name the organism, the community, and its role in the community. (producer, predator, seed dispersal agent, etc)