Genomic tests of the species-pump hypothesis: Recent island connectivity cycles drive population divergence but not speciation in Caribbean crickets across the Virgin Islands.

Abstract excerpt

Harnessing the power of genomic scans, we test the debated "species pump" hypothesis that implicates repeated cycles of island connectivity and isolation as drivers of divergence. This question has gone understudied given the limited resolution of past molecular markers for studying such dynamic phenomena. With an average of 32,000 SNPs from the genome of 136 individuals from 10 populations of a Caribbean...

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• Animal Distribution
• Genetic Drift
• Genetic Speciation
• Genome, Insect
• Gryllidae