Food Webs

Food Webs

Overlapping Food Chains within an Ecosystem.

Food Chains

• one single path of energy flow within an ecosystem

• Example: Tundra

• What is the producer?

• How do producers get their food?

Scavengers/Decomposers

• What role do scavengers have?

• Who is the Scavenger?

• Who is the decomposer in this food chain?

Multiple Choice

Who is the first level consumer in this food chain?

• wolf

• mushroom

• arctic moss

• caribou

Fill in the Blanks

The

is the decomposer for this tundra food chain.

Multiple Choice

Who is the top predator in this tundra food chain?

• wolf

• caribou

• reindeer moss

• bird

Food Webs

• overlapping food chains

• organisms usually eat more than one type of food

• food webs are more accurate pictures of what happens in different ecosystems

• ARROWS: show energy flow

Multiple Select

Click on the producers in this food web.

• oak acorns

• kinglet

• red-tailed hawk

• pine tree

Multiple Select

Click on all of the primary consumers in this food chain.

• corn snake

• pine-borer insect

• mouse

• red-tailed hawk

Open Ended

Write one food chain within this web. START with a producer.

Open Ended

Why do you think the arrows pointing toward the decomposers are blue?