Expected heterozygosity (H_e) under Hardy-Weinberg genotypic proportions for <i>ex situ</i> samples collected in 1995, recollected in 2004, and <i>in situ</i> populations sampled in 2009.

<p>Differences in first letter correspond to significant differences in H_e among the four locations within the same year. Differences in second letter correspond to significant differences in H_e within location across the three years sampled (Bonferroni correction for testing seven hypotheses based on overall critical p-value of 5% is ≤0.007).