When wildlife researcher Patricia Cramer takes a bird’s-eye view of a landscape, she likes to imagine a black bear moving across it, navigating both natural and man-made features. Where might that bear find food and water? What paths might it follow to meet potential mates? Where would it tuck in for a nap, or den for the winter? The thought that follows is grimmer: “How in the world is that animal going to be able to do that tonight — or any night — and not get killed on the road?” Cramer, a self-described “queen of wildlife crossings,” has been studying the intersection of transportation and ecology for the better…