My master's thesis (Predicting Pelagic Habitat with Presence-only Data using Maximum Entropy for Olive Ridley Sea Turtles in the Eastern Tropical Pacific) is available here: https://pdfs.semanticscholar.org/ed5a/f8be7e4a358a5cb3cda19036525b6d91629c.pdf. This study covered the entire range of the turtle species.