Part 1: Food Chainsconsumer decomposer producer herbivore omnivore carnivore

Instructions: Choose the best word from the word bank to complete each statement below: [6 marks]

a) Mushrooms cannot make their own food and they do not eat food. Instead, they get their energy by breaking down dead organisms. These types of living things are called ________________________________ .

b) A deer eats grass and other plants found in the forest. Because it only eats plants, the deer is called a __________________________________ .

c) Grass, trees, and flowers are all able to make their own food. All of these organisms are types of __________________________________ .

d) Frogs, fish, and seals must all obtain energy by eating other living things. All of these organisms are types of _____________________________

e) Grizzly bears live in the forest. They eat berries and other plants along with fish and insects. Because they eat both plants and animals, grizzly bears are called __________________________________

f) Hawks obtain energy by eating other birds. Because they do not eat any plants, hawks are called _________________________________.

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Name: _______________________

Part 2: Isle Royale Case StudyInstructions: Read the article and answer the analysis questions.

Isle Royale is a small island located in Lake Superior,

Ontario. The island is home to a population of wolves and

moose that are held in a delicate balance with one

another. In the past, this balance has remained stable.

However, the moose population is currently the lowest it

has been in recent years.

In 2007, the island was home to only 385 moose,

falling from 450 in 2006. The moose’s primary predators

are wolves. Foxes are also found on the island, feeding

mainly on moose carcasses and grass-eating snowshoe

hares. Insects, such as ticks and mosquitoes, feed on the

moose blood. The moose themselves are herbivores,

eating a variety of woody plant materials including balsam fir

and birch. Aquatic plants also make up a large part of their -

summer food resource.

Analysis Questions

1) Where is Isle Royale? [1 mark]

2) How many moose lived on the island in 2006 compared to 2007? [1 mark]

3) Why do you think the number of moose living on Isle Royale has decreased? [2 marks]

4) List all of the producers found in this ecosystem. [1 mark]

5) List all of the consumers found in this ecosystem. [1 mark]

6) Identify one herbivore found in this ecosystem. [1 mark]

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7) Identify one carnivore found in this ecosystem [1 mark]

8) Draw a food web for Isle Royale that includes the ten organisms underlined above. Use arrows to indicate energy flow. [5 marks]

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TOTAL = ______/19

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