Table 2.

Pairwise F _ST values: Slatkin's linearized F _ST a (above the diagonal) and Nei's mean number of pairwise differencesb (below the diagonal)c ^, d

	2009PO_AQUA	2010PG_AQUA	2011PG_AQUA	2011PGN_AQUA	2012PG_AQUA	TOB_WILD	STW_WILD
2009PO_AQUA		0.051	0.057	0.064	0.028	0.046	0.132
2010PG_AQUA	0.049		0.034	0.003#	0.028	0.016	0.101
2011PG_AQUA	0.054	0.033		0.043	0.030	0.031	0.105
2011PGN_AQUA	0.060	0.003#	0.041		0.039	0.026	0.115
2012PG_AQUA	0.027	0.028	0.029	0.038		0.028	0.107
TOB_WILD	0.044	0.015	0.031	0.025	0.028		0.089
STW_WILD	0.116	0.092	0.095	0.103	0.096	0.082

^aPairwise F _ST values (Weir & Cockerham, 1984) calculated as Slatkin's linearized F _ST (Slatkin, 1995) as implemented in Arlequin 3.5 (Excoffier & Lischer, 2010). All genetic distance measures are highly significant in a permutation test with 10,100 permutations at p = .00000 + −.0000 except for # which had p = .00762 + −.0009.

^bNei's mean number of pairwise differences between pairs of populations is a method of measuring genetic distance when the characters are binary (Nei & Li, 1979) as implemented in Arlequin 3.5 (Excoffier & Lischer, 2010). All genetic distance measures are highly significant in a permutation test with 10,100 permutations at p = .00000 + −.0000 except for # which had p = .00762 + −.0009.

^cFull population names corresponding to these abbreviations are given in Table 1.

^dAll genetic distance calculations were performed on a reduced dataset after individuals shown by STRUCTURE to have European ancestry had been removed.