Appendix A. Intra-vibrissae isotopic variation for individual sea otters from Monterey Bay, California, USA.
FIG. A1. δ13C or δ15N values of sequential vibrissae segments for 24 individual sea otters from Monterey Bay, California, who exhibit a low degree of isotopic variability in both δ13C and δ15N values. Vibrissae length (cm), the number of samples, and mean (SD) values are shown below sample identifications.