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Article

Is the central-marginal hypothesis a general rule? Evidence from three distributions of an expanding mangrove species, Avicennia germinans (L.) L.

Molecular ecology - 1 Feb 2020

Kennedy John Paul, Preziosi Richard F, Rowntree Jennifer K, Feller Ilka C

Abstract excerpt

The central-marginal hypothesis (CMH) posits that range margins exhibit less genetic diversity and greater inter-population genetic differentiation compared to range cores. CMH predictions are based on long-held "abundant-centre" assumptions of a decline in ecological conditions and abundances towards range margins. Although much empirical research has confirmed CMH, exceptions remain almost as common. We contend...

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Identifiers

PMID: 31990426
DOI: 10.1111/mec.15365
PMCID: PMC7065085

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Source receipt: pubmed, retrieved 7 Sept 2026.

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