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.