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Article

Gene Flow and Habitat Heterogeneity Shape Coexistence Dynamics of Arctic Charr Morphs in Connected Lakes.

Molecular ecology - 1 Jan 2026

Xiao Han, Pálsson Arnar, Jónsson Zophonías O, Snorrason Sigurður S

Abstract excerpt

Sympatric morphs provide valuable systems for studying incipient divergence despite incomplete reproductive isolation. In connected waterbodies with spatially heterogeneous habitats, one or more morphs may form metapopulation structures, generating eco-evolutionary dynamics unlike those in single lakes. We studied the phenotypic and genome-wide differentiation in Arctic charr (Salvelinus alpinus) in two Icelandic...

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PMID: 41542779
DOI: 10.1111/mec.70225
PMCID: PMC12809625

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