Estimated area in square kilometers (millions) of the primate distributional range, IPLs, PAs, and OLs. IPL∩PA indicates the area common to both IPLs and PAs. “IPLs alone and PAs alone” refers to the extent of each area type that does not overlap the other, that is, their exclusive area. Although according to the International Labor Organization Indigenous and Tribal Peoples Convention 1989 (No. 169, Article 1) (51), Madagascar has no Indigenous Peoples, it is included here for comparison with the other regions in terms of the extent of primate ranges and protected areas.