Obj. 3- Energy in Ecosystems

The ecosystem can support fewer foxes than grasshoppers.

Foxes require less energy than birds.

The ecosystem can support more foxes than birds.

Grasshoppers require more energy than birds.

10 kcal

100 kcal

1,000 kcal

10,000 kcal

Plants are not infinitely in the world

Producers can only eat what is available

Carnivores are too big to be eaten

Energy is lost when you move up a trophic level

The populations of the snakes and hawks would also increase.

The populations of the grass, snakes, and hawks would decrease.

The grass population would decrease. The snake and hawk population would increase.

The grass and hawk population would decrease. The snake population would increase.

Producers

First-Level Consumers

Second-Level Consumers

Third-Level Consumers

Producers

First-Level Consumers

Second-Level Consumers

Third-Level Consumers

10 Kcal

1 Kcal

100 Kcal

1000 Kcal