Table 2 For each site, sample size (“N”), mean expected heterozygosity over all loci (“He”) and standard deviation between loci, mean observed heterozygosity over all loci (“Ho”) and standard deviation between loci, mean allelic richness computed using a rarefaction approach over all loci (“Ar”), mean Fis over all loci (“Fis”), mean Fst over all loci (i.e. uniqueness at the site level; Fst = 1-He_Site/He_Total)

27

0.18 ± 0.19

0.18 ± 0.18

0.011

0.070

1.58

0.44 ± 0.20

0.58 ± 0.25

0.226

0.04

4.42

12

0.22 ± 0.23

0.21 ± 0.20

−0.038

0.030

1.66

0.67 ± 0.19

0.70 ± 0.17

0.027

0.022

5.63

26

0.22 ± 0.23

0.22 ± 0.20

−0.025

0.022

1.65

0.65 ± 0.17

0.67 ± 0.18

0.015

0.017

5.85

30

0.19 ± 0.20

0.20 ± 0.18

0.028

0.027

1.69

0.61 ± 0.18

0.69 ± 0.17

0.107

0.019

6.18

29

0.22 ± 0.22

0.21 ± 0.19

−0.023

0.025

1.67

0.68 ± 0.12

0.73 ± 0.16

0.057

0.019

6.79

21

0.21 ± 0.21

0.22 ± 0.20

0.056

0.028

1.68

0.64 ± 0.17

0.72 ± 0.12

0.125

0.024

6.40

22

0.21 ± 0.21

0.21 ± 0.19

−0.004

0.031

1.66

0.69 ± 0.14

0.70 ± 0.15

0.033

0.02

5.91