It seems like the high intertidal Pelvetia canaliculata has gone under an extensive biogeographical shift.
Assuming species/climate equilibrium, our models and molecular variation supported the hypothesis of a post-glacial latitudinal range shift for P. canaliculata. In Iberia the low haplotypic diversity suggested complex range dynamics that are not fully captured by our projections for past times. Periglacial regions, identified as the source of poleward colonization, were inferred to have been comparatively more stable. Greater attention should be paid to marine range dynamics at low-latitude range margins, particularly in genetically structured low-dispersal species exhibiting southern endemic variation.
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