Vison d'Amérique
Predation: American mink ("Neovison vison"), which either escaped or were released from fur farms, prey on native European water voles ("Arvicola amphibius") and are drastically reducing their numbers. It was reported that since the late 1980s, 90% of the UK population of the European water vole has been lost, primarily due to displacement and predation by the American mink.