The need to prevent the extinction of species dates back to the environmental movements of the 1960s, when the first reports of widespread pollution, ecosystem disruption, and species loss began to appear. Today, as these trends have worsened on a global scale, the arguments to justify conservation actions have expanded to include the economic usefulness of species and ecosystems to society (Mace 2014). Nonetheless, assessing the risk of species extinction remains a crucial step in guiding efforts towards biodiversity conservation.