FIGURE 5.

Db‐RDA ordination biplot (scaling 1), which preserves distances among objects and environmental variables for (a) 860 individuals, (b) 416 S. mentella individuals, and (c) 444 S. fasciatus individuals. (a) S. mentella is shown in blue and S. fasciatus in red. (b) There are three ecotypes described in S. mentella: GSL (cyan), shallow (blue), and deep (dark blue). The unknown S. mentella genetic cluster is identified in light gray. (c) There are five populations observed in S. fasciatus: I (purple), II (orange), III (red), IV (green), and IV (pink)