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Article

A species interaction kick-starts ecological speciation in allopatry.

Proceedings of the National Academy of Sciences of the United States of America - 21 Oct 2025

Roesti Marius, Groh Jeffrey S, Jones Felicity C, Peichel Catherine L, Schluter Dolph

Abstract excerpt

Adaptation to different environments is thought to play a key role in speciation. However, speciation typically begins in allopatry, where reproductive isolation can also arise through neutral processes or selection unrelated to ecological differences. Disentangling the role of adaptive ecological divergence in the early stages of speciation therefore remains an important challenge in understanding the origin of...

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PMID: 41082661
DOI: 10.1073/pnas.2506625122
PMCID: PMC12557528

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