TABLES & FIGURES
Figure 1. Range maps for M. americana (green) andM. caurina (blue) based on IUCN distributions (iucnredlist.org)
and mitochondrial haplotype distributions (Dawson et al. 2017;
Colella et al. 2018b) with hybrid zones (Kuiu and Kupreanof
island and western Montana into southern British Columbia) denoted by
gray hashing. Genome samples are indicated with points and
3-letter locality abbreviations that correspond to Table 1. Genome
samples are colored based on ADMIXTURE K6 assignment (Fig. 3a): insularM. caurina (QCI, ADM), continental M. caurina (COL, PNW),
continental (MAK, CHI*) and insular M. americana (POW*, REV). *
indicates an island population that was received M. americanatranslocations from a mainland source population. Two hybrid individuals
(KUI, MTX) are shown in grey with an X.