Smithsonian’s National Zoo and Conservation Biology Institute, United States
While there have been a number of proposed fence modifications to facilitate passage by ungulates across fences, most are based on antidotal information and lack evaluation. Since 2010, we have been evaluating fence modifications to determine if they actually facilitate fence crossings by three prairie ungulate species. Our results show that some modifications are effective at allowing ungulates to cross fences, while others were a determent to movement. We prioritize which modifications work best for each species so that recommendations on wildlife friendly fencing standards can be made to the ranching community.