Figure 4. Change in the proportion of marginal conditions
within suitable area for each clade. A. Cluster analysis
showing five groups according to their changes in the normalized
marginality area between LGM and present (i: More marginal area at LGM,
ii: more marginal area at present, iii: slightly more marginal area at
LGM, iv; slightly more marginal area at present, and v: similar
marginality at present and LGM). Highland taxa are highlighted in green.
Pink (N) and blue (S) indicate location of genetic clade; “-“
indicates unstructured clades. In the heatmap, red represents more area
of a determined marginality value at LGM. B. Normalized area
distribution of each marginality values for LGM CCSM and present-day
climate for some example clades from each cluster.