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Environmental change in SW Portugal during the last 3900 years BP: an ostracoda assessment

2026-03Artigo científico Acesso aberto
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datacite.subject.sdg13:Ação Climática
datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg15:Proteger a Vida Terrestre
dc.contributor.authorFernandes Martins, Maria João
dc.contributor.authorCabral, Maria Cristina
dc.contributor.authorMagalhães, Vitor Hugo
dc.contributor.authorDrago, Teresa
dc.contributor.authorFatela, Francisco
dc.contributor.authorOliveira, Anabela
dc.date.accessioned2026-03-03T10:56:32Z
dc.date.available2026-03-03T10:56:32Z
dc.date.issued2026-03
dc.description.abstractOstracod, geochemical, mineralogical, and sedimentological proxies from a sediment core collected off Sagres (southwestern Portugal) were used to reconstruct Holocene environmental and hydrodynamic changes. Reduced variability of geochemical elements between ~4000 and ~1290 calibrated years before present suggests relatively stable conditions, regularly disturbed by higher-energy events. At ~1290 cal yrs BP, a transition from arid to wetter conditions is suggested based on enhanced terrestrial/detrital input after this time. Ostracod assemblages further captured fine-scale hydrodynamic variability, offering greater sensitivity to oceanographic changes. Our results support a broader pattern of middle-to-late Holocene drying conditions in southern Iberia, followed by a shift to wetter conditions during periods of negative North Atlantic Oscillation (NAO) index. Our study provides new data on offshore ostracods from the western Algarve, underscoring their value for high-resolution paleoenvironmental reconstructions.eng
dc.description.sponsorshipLA/P/0068/2020
dc.identifier.doi10.1016/j.quaint.2025.110114
dc.identifier.issn1040-6182
dc.identifier.urihttp://hdl.handle.net/10400.1/28306
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationInstitute Dom Luiz
dc.relationInterdisciplinary Center for Archaeology and Evolution of Human Behavior
dc.relationInterdisciplinary Center for Archaeology and Evolution of Human Behavior
dc.relationHigh-resolution oceanic paleoproductivity and environmental changes. Correlation with fish populations.
dc.relation.ispartofQuaternary International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectPaleoenvironmental reconstruction
dc.subjectAlgarve continental shelf
dc.subjectHolocene
dc.subjectOstracods
dc.titleEnvironmental change in SW Portugal during the last 3900 years BP: an ostracoda assessmenteng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUID/GEO/50019/2019
oaire.awardNumberUIDP/04211/2020
oaire.awardNumberUIDB/04211/2020
oaire.awardNumberPDCT/MAR/55618/2004
oaire.awardTitleInstitute Dom Luiz
oaire.awardTitleInterdisciplinary Center for Archaeology and Evolution of Human Behavior
oaire.awardTitleInterdisciplinary Center for Archaeology and Evolution of Human Behavior
oaire.awardTitleHigh-resolution oceanic paleoproductivity and environmental changes. Correlation with fish populations.
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FGEO%2F50019%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04211%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04211%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/PDCT/PDCT%2FMAR%2F55618%2F2004/PT
oaire.citation.startPage110114
oaire.citation.titleQuaternary International
oaire.citation.volume758
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamPDCT
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameFernandes Martins
person.givenNameMaria João
person.identifierA-6948-2013
person.identifier.ciencia-idD91A-79B0-2288
person.identifier.orcid0000-0002-9118-7397
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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