Question

After wolves were brought back to Yellowstone, how did the beaver population change?

(1 point)

It stayed the same because wolves did not interact with them at all.

It increased because their food source, willow trees, grew back.

It decreased because the wolves began to actively hunt the beavers.

It moved to a new area to avoid both the wolves and the elk.

Answer 1

It increased because their food source, willow trees, grew back. Wolves reduced and changed elk browsing, allowing willows to recover and support more beavers.