1. SNC1D
Communities

2. What is a community?
All the populations of the different species that interact in a specific area or ecosystem

3. Community

4. Main Idea
Certain species will have more impact in their community than other species. Different types of species will impact the ecosystem in different ways. We will be looking that the types of species.

5. Dominant Species
Species that are so abundant that they have the biggest biomass of any community member

6. Biomass
Total mass of living organisms in an area

7. Dominant Species

8. Keystone Species
A species that can greatly affect population numbers and that health of an ecosystem

9. Keystone Species
example

10. Ecosystem Engineer
A species that causes such dramatic changes to landscapes that it creates a new ecosystem

11. Ecosystem Engineer

12. Ecosystem Engineer

13. Works cited
ON Science 9- McGraw-Hill Ryerson