Question

Marine biologist, Dr. James Estes research sea otters, and their habitats, in the aleutian islands of north, pacific ocean sea otter, speed on animals, such as crabs and urchins. Islands with sea otters contains a lot of kelp. I seaweed, that is an important food source for fish and other sea animals, however islands without otters had a large pollution of urchins this allows for kelp to freely grow in those areas. Given this information, what term best describes the otter in the Aleutian Islands Ecosystem?

Answer 1

Keystone species.