McGregor’s skink distribution on Mana Island. Dated records author pers. obs., apart from ‘2010’ (Adams and Caldwell 2012), ‘2015’ (Adams 2015), and ‘2017*’ (Jess Richardson, pers. comm., August 2022). Orange = core distribution 1990, yellow = core distribution 2020. Question marks show unsurveyed coastal slopes, and the dashed line shows the presumed extent of the current core distribution.