1. Please feel free to chat amongst yourselves until we begin at the top of the hour.

2. Seminar Agenda Icebreaker Food Chain versus Food Web Lake Michigan Food Web Questions & Answers

3. Any questions?

4. Ice Breaker! What is your favorite food?

5. Food Chains vs. Food Webs

6. What is a “Food Chain”?

7. Food Chains vs. Food Webs What is a common Food Chain in your area?

8. Food Chains vs. Food Webs What is missing from this “Food Chain”?

9. Food Chains vs. Food Webs

10. Food Chains vs. Food Webs Key Concepts / Terms: Photosynthesis: the process a plant uses to combine sunlight, water, and carbon dioxide to produce oxygen and sugar (energy) Producer: organisms that make their own food from sunlight and/or chemical energy (the base of every food chain) Consumer: organisms that consume the producers Primary Consumer: eat the producer Secondary: eat the primary consumer As the energy flows from organism to organism, energy is lost at each step.

11. Food Chains vs. Food Webs Key Concepts / Terms: In food chains and food webs, only about 10% of the energy expressed as calories from eating a creature get transferred up into the next level of the food chain. What happens to the other 90% of the calories?

12. Food Chains vs. Food Webs What is a “Food Web”?

13. Food Chains vs. Food Webs What are advantages to existing in a “Food Web”?

14. Lake Michigan Food Web http://www.glerl.noaa.gov/pubs/brochures/fo odweb/LMfoodweb.pdf

15. Lake Michigan Food Web What might happen to the population of blue-green algae if the amphipods started dying?

16. Lake Michigan Food Web What would happen to the population of Lake whitefish if the amphipods started dying?

17. Lake Michigan Food Web What might happen to the mollusks if the amphipods started dying?

18. Any questions?