1. Starter
Identify which response to predation is each organism displaying? 3.

2. 11-2: Species Interactions (competition)

3. Competition
Occurs when two organisms fight for the same limited resources (2 types)

4. Competition
1. Intraspecific competition - competition between organisms of same species
Example: Crabs fighting for mates

5. Competition
2. Interspecific Competition- competition between different species
Example: Different types of barnacles compete for rock space

6. Interspecific competition LEADS TO….
Competitive exclusion- when one species outcompetes the other for the niche.  

7. Interspecific competition LEADS TO….
Competitive exclusion- when one species outcompetes the other for the niche.  
Two outcomes:
Other species will be pushed into another niche (niche partitioning)
OR go extinct  

8. niche partitioning- dividing of niche by two competing species (ex: different bird species partitioning a tree)

9. Class Work
Community Interactions Chart and Scenarios