Fig 2. Mean (±SD)values of δ¹³C (A) and δ¹⁵N (B) for bone from the skulls of male and female sea lions collected in three different regions of the Galapagos archipelago.

Regions with different superscript (lower-case letters) are statistically different in their mean values according to the Scheffe's post hoc test. Vertical bars show standard deviation.