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dc.contributor.authorEden, Rebecca
dc.contributor.authorManica, Andrea
dc.contributor.authorMitchell, Emily
dc.date.accessioned2022-05-17T19:00:15Z
dc.date.available2022-05-17T19:00:15Z
dc.date.issued2022-05
dc.date.submitted2021-05-01
dc.identifier.issn1544-9173
dc.identifier.otherpbiology-d-21-01148
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/337252
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.languageen
dc.publisherPublic Library of Science (PLoS)
dc.subjectResearch Article
dc.subjectBiology and life sciences
dc.subjectEarth sciences
dc.subjectEcology and environmental sciences
dc.subjectComputer and information sciences
dc.titleMetacommunity analyses show an increase in ecological specialisation throughout the Ediacaran period.
dc.typeArticle
dc.date.updated2022-05-17T19:00:14Z
prism.issueIdentifier5
prism.publicationNamePLoS Biol
prism.volume20
dc.identifier.doi10.17863/CAM.84668
dcterms.dateAccepted2022-03-29
rioxxterms.versionofrecord10.1371/journal.pbio.3001289
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
datacite.contributor.supervisoreditor: Jordano, Pedro
dc.contributor.orcidManica, Andrea [0000-0003-1895-450X]
dc.contributor.orcidMitchell, Emily [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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