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dc.contributor.authorZhuravlev, Andrey Yu.
dc.contributor.authorMitchell, Emily G.
dc.contributor.authorBowyer, Fred
dc.contributor.authorWood, Rachel
dc.contributor.authorPenny, Amelia
dc.identifier.citationZhuravlev , A Y , Mitchell , E G , Bowyer , F , Wood , R & Penny , A 2022 , ' Increases in reef size, habitat and metacommunity complexity associated with Cambrian radiation oxygenation pulses ' , Nature Communications , vol. 13 , 7523 .
dc.identifier.otherPURE: 282489570
dc.identifier.otherPURE UUID: a37c61f4-f2b4-4fde-b44c-72150565c5ef
dc.identifier.otherJisc: 770380
dc.identifier.otherpublisher-id: s41467-022-35283-5
dc.identifier.othermanuscript: 35283
dc.identifier.otherORCID: /0000-0002-4392-8090/work/124489932
dc.identifier.otherScopus: 85143493660
dc.descriptionFunding: This work was funded by UKRI grant NE/S014756/1 (E.G.M.) and Project NE/T008458/1 (R.W. and F.B.).en
dc.description.abstractOxygenation during the Cambrian Radiation progressed via a series of short-lived pulses. However, the metazoan biotic response to this episodic oxygenation has not been quantified, nor have the causal evolutionary processes been constrained. Here we present ecological analyses of Cambrian archaeocyath sponge reef communities on the Siberian Platform (525–514 Ma). During the oxic pulse at ~521–519 Ma, we quantify reef habitat expansion coupled to an increase in reef size and metacommunity complexity, from individual within-community reactions to their local environment, to ecologically complex synchronous community-wide response, accompanied by an increase in rates of origination. Subsequently, reef and archaeocyath body size are reduced in association with increased rates of extinction due to inferred expanded marine anoxia (~519–516.5 Ma). A later oxic pulse at ~515 Ma shows further reef habitat expansion, increased archaeocyath body size and diversity, but weaker community-wide environmental responses. These metrics confirm that oxygenation events created temporary pulses of evolutionary diversification and enhanced ecosystem complexity, potentially via the expansion of habitable space, and increased archaeocyath individual and reef longevity in turn leading to niche differentiation. Most notably, we show that progression towards increasing biodiversity and ecosystem complexity was episodic and discontinuous, rather than linear, during the Cambrian Radiation.
dc.relation.ispartofNature Communicationsen
dc.rightsCopyright © The Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
dc.subjectQH301 Biologyen
dc.subjectSDG 14 - Life Below Wateren
dc.titleIncreases in reef size, habitat and metacommunity complexity associated with Cambrian radiation oxygenation pulsesen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. Centre for Biological Diversityen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.description.statusPeer revieweden

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