Alves and mice have a predatory prey, relationship owls are the predators and mice are the prey what happens to the mouse population when there is a decrease in the owl population is the answer it decreases because mice would not be eaten as owl food or increases because fewer mice are eaten by owls or an increases, because there is more food available for mice, or it decreases because there is less food available for mice

An increase, because there is more food available for mice. With fewer owls preying on them, the mouse population would likely increase as they have less risk of being eaten.