Fig. 2
From: Fine-scale assessment of genetic diversity of trembling aspen in northwestern North America
Interpolation of (a) allelic richness (AR) and (b) observed heterozygosity (Ho) across the range of Populus tremuloides based on average AR and Ho values at each sampling site. Across the range, AR and Ho respectively varied from 3.94 (Peter Pond) to 5.22 (Kenai) and from 0.542 (Delta) to 0.762 (Alders Flat). Red represents areas of higher values and yellow represents areas of lower values