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Digest: Los procesos a nivel de población que facilitan la divergencia difieren entre las aves andinas y amazónicas

Pranav Gokhale¹

¹School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA.

Evolution; international journal of organic evolution

|February 25, 2026

Abstract:

Wacker and Winger (2026) examine population-level divergence across two very different but connected landscapes, the Andes and the Amazon, using genomic data from eight Tangara bird species. Andean populations show strong genetic structure, with lower gene flow and genetic diversity. In the Amazon, genetic structure is weak, with higher gene flow and genetic diversity. These results suggest that divergence can happen more easily in the Andes due to stronger geoclimatic barriers than in lowland Amazonia.

Palabras clave:

divergencia genética aves andinas aves amazónicas estructura poblacional flujo génico diversidad genética barreras geoclimáticas evolución de aves biogeografía Tangara

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