Past climate-driven range shifts structuring intraspecific biodiversity levels of the giant kelp (<i>Macrocystis pyrifera</i>) at global scales

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dc.contributor.authorAssis, Jorge
dc.contributor.authorAlberto, Filipe
dc.contributor.authorMacaya, Erasmo C.
dc.contributor.authorCoelho, Nelson Castilho
dc.contributor.authorFaugeron, Sylvain
dc.contributor.authorPearson, Gareth A.
dc.contributor.authorLadah, Lydia
dc.contributor.authorReed, Daniel C.
dc.contributor.authorRaimondi, Peter
dc.contributor.authorMansilla, Andres
dc.contributor.authorBrickle, Paul
dc.contributor.authorZuccarello, Giuseppe C.
dc.contributor.authorSerrao, Ester A.
dc.date.accessioned2025-01-20T20:07:46Z
dc.date.available2025-01-20T20:07:46Z
dc.date.issued2023
dc.description.abstractThe paradigm of past climate-driven range shifts structuring the distribution of marine intraspecific biodiversity lacks replication in biological models exposed to comparable limiting conditions in independent regions. This may lead to confounding effects unlinked to climate drivers. We aim to fill in this gap by asking whether the global distribution of intraspecific biodiversity of giant kelp (Macrocystis pyrifera) is explained by past climate changes occurring across the two hemispheres. We compared the species' population genetic diversity and structure inferred with microsatellite markers, with range shifts and long-term refugial regions predicted with species distribution modelling (SDM) from the last glacial maximum (LGM) to the present. The broad antitropical distribution of Macrocystis pyrifera is composed by six significantly differentiated genetic groups, for which current genetic diversity levels match the expectations of past climate changes. Range shifts from the LGM to the present structured low latitude refugial regions where genetic relics with higher and unique diversity were found (particularly in the Channel Islands of California and in Peru), while post-glacial expansions following similar to 40% range contraction explained extensive regions with homogenous reduced diversity. The estimated effect of past climate-driven range shifts was comparable between hemispheres, largely demonstrating that the distribution of intraspecific marine biodiversity can be structured by comparable evolutionary forces across the global ocean. Additionally, the differentiation and endemicity of regional genetic groups, confers high conservation value to these localized intraspecific biodiversity hotspots of giant kelp forests.
dc.fuente.origenWOS
dc.identifier.doi10.1038/s41598-023-38944-7
dc.identifier.issn2045-2322
dc.identifier.urihttps://doi.org/10.1038/s41598-023-38944-7
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91843
dc.identifier.wosidWOS:001037011600001
dc.issue.numero1
dc.language.isoen
dc.revistaScientific reports
dc.rightsacceso restringido
dc.subject.ods13 Climate Action
dc.subject.ods15 Life on Land
dc.subject.ods14 Life Below Water
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa14 Vida submarina
dc.titlePast climate-driven range shifts structuring intraspecific biodiversity levels of the giant kelp (<i>Macrocystis pyrifera</i>) at global scales
dc.typeartículo
dc.volumen13
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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