Results of permutation analysis of variance tests of the equality of the fatty acid signatures of various groups of ringed and bearded seals using the Aitchison distance.

Signatures consisted of proportions of 31 dietary fatty acids (listed in Methods) and were augmented with an additional proportion equal to 1 minus the sum of the 31 proportions so that all 32 proportions summed to 1 [14]. The number of replicates is approximately equal to the number of unique permutations of the data used in each test, with a maximum of 100,000 to limit computation time. The name associated with each data source is the surname of the lead author of the paper that initially presented the data, except USFWS denotes the U.S. Fish and Wildlife Service (see Methods). TS denotes the test statistic and p-value denotes test significance.