Border fences and their impacts on large carnivores, large herbivores and biodiversity - an international wildlife law perspective

Fences, walls and other barriers are proliferating along international borders on a global scale. These border fences not only affect people, but can also have unintended but important consequences for wildlife, inter alia by curtailing migrations and other movements, by fragmenting populations and by causing direct mortality, for instance through entanglement. Large carnivores and large herbivores are especially vulnerable to these impacts. This article analyses the various impacts of border fences on wildlife around the world from a law and policy perspective, focusing on international wildlife law in particular. Relevant provisions from a range of global and regional legal instruments are identified and analysed, with special attention for the Bonn Convention on Migratory Species and the European Union Habitats Directive.