Food Chains and Webs

Food Chains & Webs

Tuesday, January 17th 2006

Objective: To use a food chain/web to show food and energy flow in a given habitat.

Materials: Outdoor field trip equipment

Method:

• An aquatic habitat was visited (Friars Hill Pond).

• The surrounding vegetation was described.

• Organisms close to shore were observed.

• Observations of fourteen species and their food sources were recorded in the chart below.

Results:

Observations of Species and their food sources

Species Food Sources

Egret Worms

Algae Sunlight

Worms Lily/fern

Snails Lily/fern

Beetle Lily/fern

Mosquito Animal Blood

Frog Mosquito/worms

Lizard Mosquito/beetle

Fish Algae/pond weed

Lily Sunlight

Caterpillar Lily/fern

Dragonfly Mosquito

Pond Weed Sunlight

Fern Sunlight

Conclusion:

• The objective of using a food web/chain to show how food and energy flow in a given habitat, i.e. Friars Hill Pond, was met. Fourteen different species were closely examined and each had their source of energy. A food chain/web was made to show the linkage of energy and the producers and consumers of the habitat.

Discussion:

• The habitat I went to was an aquatic habitat. Its location is on Friars Hill.

Food Web of an aquatic habitat

Frog Dragonfly Lizard

Egret