Contrasting Phylogeographic Patterns of Sandy vs. Rocky Sympatric Sister Species of Supralittoral <i>Tylos</i> Isopods in Chile.

ABSTRACT: Sister taxa that have diverged and persisted in sympatry have likely been exposed to the same general environmental changes throughout their evolutionary history and may thus exhibit similar phylogeographies. Here, we compare the phylogeographic patterns of two sister species of isopods (genus Tylos) that have broadly overlapping distributions but distinct habitat preferences in the supralittoral zone of Chile. The dynamic geoclimatic history of this region during the Quaternary has been implicated in shaping the evolutionary histories of other coastal taxa. Tylos spinulosus is found in sandy beaches at latitudes ~27°-30° S, whereas Tylos chilensis has been found in rocky shores at ~27°-33° S and at ~39°-42° S. We sampled both species across their ranges (collectively

SUBMITTER: Hurtado LA 

PROVIDER: S-EPMC12283243 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature