Lesson Plan

The Missing Link: Food Webs on the Seward Peninsula

A herd of caribou grazing on the tundra

Caribou are a key part of the food web on the Seward Peninsula

NPS Photo

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Grade Level:
Third Grade-Seventh Grade
Subject:
Biology: Animals, Climate Change, Ecology, Environment, Wildlife Biology
Duration:
60-120 minutes
Group Size:
Up to 12 (2-4 breakout groups)
National/State Standards:
Alaska State Standards: 3SC3.1, 4SC4.1, 5SC3.1, 3SC3.2, 4SC3.2, 5SC3.2.; 3SE3.1, 4SE4.1, 5SE3.1; 7SC3.2
Keywords:
food web, climate change, wildlife

Overview

Every living creature is part of a bigger web.  Each creature in a particular ecosystem (or area) is dependent on all the other creatures in that ecosystem in many different ways.  When one piece of the web gets removed, the whole ecosystem is altered.

Objective(s)

The student will be able to create a simple food web and classify organisms in the food web. The student will also be to identify the consequences of removing pieces of the food web.

 

Background

A food chain is a linear model that shows how organisms depend on other for their food. A food web is a diagram that shows the links between multiple species in a particular ecosystem.

 

Materials

  1. Butcher paper or construction paper
  2. Markers or colored pencils
  3. Glue
  4. Pictures of animals who comprise Seward Peninsula Food Web (provided)
  5. Pictures of animals who comprise Arctic Marine Food Web (provided)
  6. Scissors

Procedure

Assessment

  1. Have students verbally describe a food web.
  2. Have students describe what happens when an animal is eliminated from the food web

Additional Resources

Vocabulary

Ecosystem
Food chain
Food web
Producer
Consumer
Decomposer
Trophic levels (first, second order consumers, etc.)
Herbivore
Carnivore