Pleistocene glacial cycles drove lineage diversification and fusion in the Yosemite toad (Anaxyrus canorus).

Abstract excerpt

Species endemic to alpine environments can evolve via steep ecological selection gradients between lowland and upland environments. Additionally, many alpine environments have faced repeated glacial episodes over the past two million years, fracturing these endemics into isolated populations. In this "glacial pulse" model of alpine diversification, cycles of allopatry and ecologically divergent glacial refugia...

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