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T. Trimpe 2006 http://sciencespot.net/
snails & worms Detritus, insect larvae,
Leeches
& aquatic plantsPhytoplankton, detritus,
Snail
fish, & wormsAdult – Insects, spiders, small
Young – Algae & detritus Pond Frog
other microscopic plant life Includes algae, diatoms, &
Aquatic Insect Nymphs Other aquatic insects, small
crustaceans, & worms
Mallard Seeds & plants; may also eat insects, mollusks, crustaceans
Pond Water Food Webs /80Name: _____________________________________ Per: _______ Date: ________________________
Use the food web to complete #1-3. (6 pts)1. Which organisms are the producers?
__________________ __________________
2. Identify the consumers using these letters... (6 pts)
C – Carnivore O – Omnivore H – Herbivore
3. Answer these questions about the food web above. Explain your answer. (9 pts)
What would happen to the limpet population if the mussels were to die out due to a disease?
How would the zooplankton be affected if the fish population were to increase? How would the whelk population be affected if crabs were removed? Pond Water Food Chains (17 pts) 4. Create four food chains on the left side of your notebook (pg. 21). You do not need to draw the pictures just
write the name of the organism. Below is an example of how many organisms need to be in each food chain. Make your producer and consumers (primary, secondary) different colors.
T. Trimpe 2006 http://sciencespot.net/
5. Create a pond food web. (p. 22 left side of notebook) (30pts) Use at least 10 of the cards to create a food web (must use 3 cards with stars) Picture of each organism Arrows showing the flow of energy. Different color for producers and all the different organisms
6. After you have finished your web, answer these questions. What would happen to your food web if the aquatic plants died out because of pollution? Be specific.
What would happen to your food web if the population of great blue heron was to double? (3 pts) _______________________________________________________________________________________
Asian carp consume zooplankton, which many fishes typically feed on in their juvenile stages, and have no known predators. How would the introduction of an Asian carp affect your food web? (3 pts)_______________________________________________________________________________________