approached significanceP < 0.05
Genetic distance measures were higher among sites within the western group than among sites within the eastern group, and permutation tests approached significance at the P < 0.05 level ( F ST : West: 0.023, East: 0.002, P = 0.0610; G” ST : West: 0.220, East: 0.016, P = 0.057; Jost’s D: West: 0.202, East: 0.014, P = 0.057).