Figure 2
From: Mature habitats associated with genetic divergence despite strong dispersal ability in an arthropod
Holarctic map showing populations and regions studied for Daphnia rosea. Holarctic map of the 84 sampling locations of D. rosea s.l. Japan (orange) and Beringia (green) represent possible refugial areas while North America (blue) indicates a potentially younger region. Siberian and European populations (gray) were not used for phylogenetic analysis only because of reduced samples and less information about putative refugia.