The presence of predators causes prey to avoid areas that favor the predator. In this situation the issue is open space. Roads are open, wolves are a bigger t

The presence of predators causes prey to avoid areas that favor the predator. In this situation the issue is open space. Roads are open, wolves are a bigger threat to the deer with long sight lines. (Simple example in our own backyard. Some plants in pots, some plants in the ground with vegetation around them. The birds completely stripped the ones in the pots but didn't touch the ones in the ground. There was no cover near the pots, a cat would have no cover. With the ones in the ground a cat would have lots of cover. While we do not have a cat multiple cats sometimes come around.)