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dc.contributor.authorEden, Rebecca
dc.contributor.authorManica, Andrea
dc.contributor.authorMitchell, Emily G
dc.date.accessioned2022-06-17T01:15:44Z
dc.date.available2022-06-17T01:15:44Z
dc.date.issued2022-05
dc.identifier.issn1544-9173
dc.identifier.other35580078
dc.identifier.otherPMC9113585
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/338179
dc.description.abstractThe first animals appear during the late Ediacaran (572 to 541 Ma); an initial diversity increase was followed reduction in diversity, often interpreted as catastrophic mass extinction. We investigate Ediacaran ecosystem structure changes over this time period using the "Elements of Metacommunity Structure" framework to assess whether this diversity reduction in the Nama was likely caused by an external mass extinction, or internal metacommunity restructuring. The oldest metacommunity was characterised by taxa with wide environmental tolerances, and limited specialisation or intertaxa associations. Structuring increased in the second oldest metacommunity, with groups of taxa sharing synchronous responses to environmental gradients, aggregating into distinct communities. This pattern strengthened in the youngest metacommunity, with communities showing strong environmental segregation and depth structure. Thus, metacommunity structure increased in complexity, with increased specialisation and resulting in competitive exclusion, not a catastrophic environmental disaster, leading to diversity loss in the terminal Ediacaran. These results reveal that the complex eco-evolutionary dynamics associated with Cambrian diversification were established in the Ediacaran.
dc.languageeng
dc.publisherPublic Library of Science (PLoS)
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceessn: 1545-7885
dc.sourcenlmid: 101183755
dc.subjectAnimals
dc.subjectEcosystem
dc.subjectExtinction, Biological
dc.subjectBiological Evolution
dc.titleMetacommunity analyses show an increase in ecological specialisation throughout the Ediacaran period.
dc.typeArticle
dc.date.updated2022-06-17T01:15:43Z
prism.issueIdentifier5
prism.publicationNamePLoS Biol
prism.volume20
dc.identifier.doi10.17863/CAM.85590
dcterms.dateAccepted2022-03-29
rioxxterms.versionofrecord10.1371/journal.pbio.3001289
rioxxterms.versionVoR
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidManica, Andrea [0000-0003-1895-450X]
dc.contributor.orcidMitchell, Emily G [0000-0001-6517-2231]
dc.identifier.eissn1545-7885
pubs.funder-project-idNatural Environment Research Council (NE/S014756/1)
cam.issuedOnline2022-05-17


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International