Number of reptile species in high extinction-risk categories according to A NOM-059-SEMARNAT-2010 B IUCN Red List, and C the Environmental Vulnerability Score, for eight tropical regions in northern Mesoamerica. The black bars in the three plots represent the number of species in high extinction-risk categories, and the grey bars in the graph B represent the number of species not evaluated or in the Data Deficient category by the IUCN.