The dry forests are found mostly on the southern and western portions of the island of Hispaniola, covering portions of both the Dominican Republic and Haiti. The ecoregion covers the southern and western coastal lowlands, the Cul-de-Sac–Enriquillo lowland, and the Cibao Valley in the north-central portion of the island.[1]
Given the climate, reptiles are numerous in this region. Species found include Ricord's iguanas (Cyclura ricordii), rhinoceros iguanas (C. cornuta), Hispaniola racers (Haitiophis anomalus), and Barreras fanged snakes (Ialtris agyrtes). A 2017 study found that extinctgiant tortoises (Chelonoidis marcanoi) found on Hispaniola were specialists adapted to dry, open habitats and had a major role in shaping this ecoregion; following a decrease in the extent of these ecosystems after the end of the Pleistocene, these tortoises were restricted to refugia habitats up until their extinction.[4]
^ abEric Dinerstein, David Olson, et al. (2017). An Ecoregion-Based Approach to Protecting Half the Terrestrial Realm, BioScience, Volume 67, Issue 6, June 2017, pp. 534–545; Supplemental material 2 table S1b. [1]
^Cano-Ortiz, Ana & Musarella, Carmelo & Piñar Fuentes, José Carlos & Gomes, Carlos & Cano, Eusébio. (2015). Forests and Landscapes of Dominican Republic. Jordan Journal of Applied Science.