Spatio‐temporal changes have likely caused range fragmentation and population isolation, which could have given rise to the observed current intraspecific differentiation in some species. Here, we test several hypotheses on… Click to show full abstract
Spatio‐temporal changes have likely caused range fragmentation and population isolation, which could have given rise to the observed current intraspecific differentiation in some species. Here, we test several hypotheses on the potential effect of Pleistocene glacial cycles in the diversification of Arctic shorebird species, comparing between different scenarios of fragmentation of the breeding distribution during glacial and interglacial periods.
               
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