What do you think will happen after all the starfish are removed from the tide pool ecosystem?
The source of energy for this food web is not shown, but we know it is the .
Energy moves from berries to the to the gray wolf.
Energy moves directly from the beaver to the .
The is an omnivore, or an animal that eats both plants and animals.
Energy from the sun is used by to produce food that is eaten by herbivores and omnivores.
What is a keystone species?
Why don't all species have the same impact on an ecosystem?
Which animal in this food web do you think is the keystone species? Why?
After watching the video, which animal in the food web is the keystone species?
How did the removal of the keystone species affect 2 other organisms? Select two.
How did the removal of the keystone species affect the river?
Use the image on the left to determine if each organism is a producer or consumer.
Producer | Consumer | |
|---|---|---|
Bison | ||
Grizzly Bear | ||
Beaver | ||
Grasses | ||
Berries | ||
Gray Wolf | ||
Elk | ||
Trees & Wooded Plants |
