K-3, Unit Two, Activity 4: "Is There Room for Everybody?"
Students will develop an awareness of carrying capacity (the number of species that can survive in an area over time) and its relationship to habitat.
Grade Level: 3
Teacher Background: Animals need certain things to survive: food, water, shelter and space in the proper arrangement. As humans develop land, there is usually a decrease in the animals’ habitat. A large predator such as a cougar needs about 70 pounds of meat per week to remain alive and healthy. A mother needs about twice that much to keep both her and her cubs healthy. Cougars stalk and chase about 10 animals for every one they catch.
Assessment: Ask students to write ways in which humans can help conserve habitat for an animal of their choice.
Did You Know?
Grizzly bears in the park have a wide variety of food sources, including glacier lily bulbs, insects, and berries. They may also make an early season meal of mountain goats that were swept down in avalanches over the winter.