While you’re right, in that predators won’t sit there, doing their best to get on Season 8 of My 600-lb life, they definitely exploit linear corridors like this if they aren’t properly constructed. Transmission lines, for instance, can be really gnarly for ungulates. Both predators and prey are smart. For predators, if there’s an easy meal to be had, they’ll continue to over-use this feature on the landscape, rather than the rest of their habitat (why cook, when you can order in?). This in and of itself is an impact on the natural ecosystem, and something we try to avoid, when the goal is ‘no impact’ or ‘as close to no impact as possible’.

From a prey standpoint, if you see Jim-Bob getting ripped apart by wolves, or got chased by pack of hungry wolves, you’d be pretty hesitant to use that feature again, now wouldn’t you? In this regard, not properly designing these things can essentially render them useless to ungulates and the like, and prevent the re-connection of the two polygons (areas) we’re trying to connect.