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Dinoflagellate cyst population evolution throughout past interglacials: key features along the Iberian margin and insights from the new IODP Site U1385 (Exp 339)

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dc.contributor.authorEynaud, Frédérique
dc.contributor.authorLondeix, Laurent
dc.contributor.authorPenaud, Aurélie
dc.contributor.authorSanchez-Goni, Maria-Fernanda
dc.contributor.authorOliveira, Dulce
dc.contributor.authorDesprat, Stéphanie
dc.contributor.authorTuron, Jean-Louis
dc.date.accessioned2020-11-18T12:13:37Z
dc.date.available2020-11-18T12:13:37Z
dc.date.issued2016
dc.description.abstractIODP 339 Site U1385 ("Shackleton site", e.g. Hodell et al., 2013a), from the SW Iberian margin, offers the opportunity to study marine microfossil population dynamics by comparing several past interglacials and to test natural shifts of species that occurred across these warm periods, in a subtropical context. Here, more specifically, we present results obtained for the dinoflagellate cyst (dinocyst) population integrated at a regional scale thanks to the addition of data from proximal sites from southern Iberian margin. When possible, observations made using the dinocyst bio-indicator are compared to additional proxies from the same records in order to test the synchronicity of the marine biota response. Pollen data available for some of the compiled marine sequences also offer the opportunity to directly compare marine biota with terrestrial ecosystem responses. This spatio-temporal compilation reveals that, over the last 800 ka, surface waters around Iberia were tightly coupled to (rapid) climate changes and were characterised by coherent dinocyst assemblage patterns, highlighting a permanent connection between Atlantic and Mediterranean waters as evidenced through a continuous exchange of dinocyst populations. Some index species well illustrate the evolution of the regional hydrographic context along time, as for instance Spiniferites and Impagidinium species, together with Lingulodinium machaerophorum, Bitectatodinium tepikiense and heterotrophic brown cysts. They constitute key bio-indicators in context of natural environmental shifts at long and short timescales.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.gloplacha.2015.12.004pt_PT
dc.identifier.issn0921-8181
dc.identifier.urihttp://hdl.handle.net/10400.1/14833
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsvierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectDinocystspt_PT
dc.subjectInterglacialspt_PT
dc.subjectBiodiversity and climate shiftspt_PT
dc.subjectSouthern Iberian marginpt_PT
dc.titleDinoflagellate cyst population evolution throughout past interglacials: key features along the Iberian margin and insights from the new IODP Site U1385 (Exp 339)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage64pt_PT
oaire.citation.startPage52pt_PT
oaire.citation.titleGlobal and Planetary Changept_PT
oaire.citation.volume136pt_PT
person.familyNameOliveira
person.givenNameDulce
person.identifierR-001-TTY
person.identifier.ciencia-idA119-CA60-3C50
person.identifier.orcid0000-0002-3016-532X
person.identifier.ridH-9855-2018
person.identifier.scopus-author-id56688169500
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationa18515cc-4754-4270-b542-e01bc11347d8
relation.isAuthorOfPublication.latestForDiscoverya18515cc-4754-4270-b542-e01bc11347d8

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