1. Competition Project Larry G. Cabral, Nelida Rojas GK-12
Santa Ana High School 1

2. Fruit fly Diversity

3. Evolutionary Ecology Competitive Exclusion Principle:
Two species competing
for the same resource
cannot coexist.
One of the competitors
will cause the extinction
of the other. 3

4. Competition Experiment
Place two fruit fly
species in the
same environment
to compete over
food and egg
laying space.

5. The Competitors D. melanogaster D. virilis Standard Competitor Vs
Population
N = Fast developing
T= Long Living
21 day generation cycle
Standard Competitor

6. Develop in Vials for 20 Days

7. Compete in Cage for 1 day

8. Collect Eggs

9. Count Flies

10. Student Participation
Maintain Fly populations
Collect Data
Present Results

11. Time Line From late September to December
Collaboration with the Rose Lab

12. Questions? 12