Figure 1.
Distribution, postglacial accessibility and variation in species occurrences uniquely explained by accessibility or climate
for selected species: (a) Filipendula ulmaria;
64%,
0%; (b) Ranunculus psilostachys;
14%,
45%; (c) Koenigia islandica;
73%,
0%. Current distribution (black dots), hind-casting-based estimate of LGM distribution (empty circles), overlap between the two (half-filled circles) and accessibility to postglacial colonization from the estimated LGM range (green to orange: high to low). Maps are in the ETRS 1989 Lambert Azimuthal Equal Area projection.