Coral Ecosystem Objectives: SWBAT understand how individual species fit into an ecosystem SWBAT build a food web and understand how species interact SWBAT understand how much life must be at the bottom of a food chain to support the top 1. Log onto http://www.bbc.co.uk/nature/blueplanet/webs/flash/main_game.shtml 2. Follow the instructions to task one (Explore the Reef) and task 2 (Who’s who) to learn about some of the organisms in the coral reef. 3. Use Task 1 to fill in columns 1, 3, 4 and 5. Task 2 will allow you to fill in column 2 Name of Organism 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12 Category (from task 2) Diet Producer or consumer? If consumer, indicate what type of consumer Task 3: Food chains (who eats who?) Complete the example food chains below ______________ _______________ _________________ Primary Producer Primary consumer Secondary Consumer ____________________ ___________ Producer Primary consumer Secondary consumer ____________________ ___________ Producer Primary consumer Secondary consumer ______________ Tertiary consumer ______________ Tertiary consumer _________________ Top consumer Task 4 - Climb the Pyramid Questions: a. Which organisms are at the bottom of every coral reef food chain? __________________________________________________ b. List an organism that is an example of a producer in the coral reef __________________________ c. What is the term given to describe organisms that eat only plants? ________________________________________________ d. List an example from the coral reef ecosystem ___________________________________________________ e. What term is given to describe organisms that eat only other animals? ____________________________________________________ f. List an example from the coral reef ecosystem _____________________________________________________ g. What % of energy is passed from one trophic level to the next? __________ h. Explain why top predators have the fewest in numbers in any given ecosystem _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ i. How much seaweed is needed to support a single 120kg reef shark (and all the organisms in the trophic levels between the seaweed and the shark)? ___________________________ Task 5: Food Webs In your journal complete the final food web. Cut out the pictures and tape them in your journal to construct the web.