Ecological effects of international border barriers

Landscape Architecture magazine recently published an op-ed against Trump's proposed border wall, focused on effects on wildlife. Their article cites an article from YaleEnvironment360 about how the razor wire barrier on the border between Slovenia and Croatia, meant to prevent refugees from Turkey entering Europe, has harmed migratory wild animals, including ecologically important large carnivores such as bears, wolves, and lynx. The YaleEnvironment 360 article includes a link to a 2011 study of the risk of barriers that may significantly impede animal migrations within the ecologically sensitive Mexico-U.S. border.