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Fig. 7. Differences between observed and theoretical fatty acid composition of
lipid reserves NL in fat semipalmated sandpipers. Theoretical values were
calculated from measured compositions in lean birds and in the
Corophium diet, assuming that dietary fatty acids are stored without
modifying chain length or number of double bonds. In this comparison, stored
fatty acids with a higher observed abundance than expected have a positive
value whereas those with a lower abundance have a negative value. Values are
means ± s.e.m. (N=13).