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Recent Global Warming Induces the Coupling of Dissimilar Long-Term Sedimentary Signatures in Two Adjacent Volcanic Lakes (Azores Archipelago, Portugal)
dc.contributor.author | Vázquez-Loureiro, David | |
dc.contributor.author | Sáez, Alberto | |
dc.contributor.author | Gonçalves, Vítor | |
dc.contributor.author | Buchaca, Teresa | |
dc.contributor.author | Hernández, Armand | |
dc.contributor.author | Raposeiro, Pedro | |
dc.contributor.author | Boer, Erik de | |
dc.contributor.author | Masqué, Pere | |
dc.contributor.author | Giralt, Santiago | |
dc.contributor.author | Bao, Roberto | |
dc.date.accessioned | 2023-05-03T19:07:10Z | |
dc.date.available | 2023-05-03T19:07:10Z | |
dc.date.issued | 2023-01-30 | |
dc.identifier.citation | David Vázquez-Loureiro, Alberto Sáez, Vítor Gonçalves, Teresa Buchaca, Armand Hernández, Pedro M. Raposeiro, Erik J. de Boer, Pere Masqué, Santiago Giralt, Roberto Bao, Recent global warming induces the coupling of dissimilar long-term sedimentary signatures in two adjacent volcanic lakes (Azores Archipelago, Portugal), Quaternary Science Reviews, Volume 303, 2023, 107968, ISSN 0277-3791, https://doi.org/10.1016/j.quascirev.2023.107968. (https://www.sciencedirect.com/science/article/pii/S0277379123000161) | es_ES |
dc.identifier.issn | 0277-3791 | |
dc.identifier.uri | http://hdl.handle.net/2183/32988 | |
dc.description | Financiado para publicación en acceso aberto: Universidade da Coruña/CISUG | es_ES |
dc.description.abstract | [Abstract] Paleoclimatological information derived from the study of lacustrine sedimentary records is not only biased by taphonomical processes but also by potential differences in the expression of climate variability in the sediments due to site-specific factors. Using a multiproxy approach (the elemental and isotopic compositions of organic matter, diatom assemblages, and marker pigments of algae and cyanobacteria), we study the different environmental signatures recorded since the Little Ice Age (LIA) in the sediments of two volcanic lakes located within the same caldera on São Miguel Island (Azores Archipelago). Lake Santiago is a crater lake whose eutrophic status in the last stage of the LIA was linked to external nutrient inputs associated with this humid period. Its post-LIA evolution was forced by changes in the thermal structure of the water, which determined its degree of mixing and therefore nutrient availability through recycling from the hypolimnion. In contrast, the decadal to centennial limnological evolution of Lake Azul, a caldera lake 2.5 km from Lake Santiago, shows geochemical and micropaleontological signatures disconnected from climate variability until 1980/1990 CE due to its greater exposure to the fallout of tephra after a catastrophic eruption in c. 1290 CE. Only after 1980/1990 CE did a global warming scenario induce a common ecological restructuring of both lakes, involving the replacement of turbulence-loving algal taxa by species adapted to strengthening water column stratification. Nevertheless, this shift was relatively gradual in Lake Azul but more sudden in Lake Santiago, indicating that the local site-specific components still had an effect on the expression of climate change in the sediments. Despite the short history of anthropogenic pressure (compared to their continental counterparts) and the large atmospheric patterns operating over the Azores Archipelago, the sedimentary records of these two adjacent oceanic volcanic lakes reacted quite differently to climate changes. | es_ES |
dc.description.sponsorship | This research was funded by the Spanish Ministry of Economy and Competitiveness projects PaleoNAO, RapidNAO and PaleoModes (CGL 2010-15767, CGL 2013-40608-R and CGL 2016-75281-C2, respectively) and by the Fundação para a Ciência e Tecnologia (PTDC/CTA-AMB/28,511/2017). David Vázquez-Loureiro, Armand Hernández, and Pedro Raposeiro benefited with grants from the Xunta de Galicia (I2C Programme co-funded with the European Social Fund), the Spanish Ministry of Science and Innovation through the Ramón y Cajal Scheme [RYC 2020-029253-I], and Fundação para a Ciência e Tecnologia (DL57/2016/ICETA/EEC 2018/25), respectively. Funding for open access charge: Universidade da Coruña/CISUG | es_ES |
dc.description.sponsorship | Portugal. Fundação para a Ciência e Tecnologia; PTDC/CTA-AMB/28511/2017 | es_ES |
dc.description.sponsorship | Portugal. Fundação para a Ciência e Tecnologia; DL57/2016/ICETA/EEC2018/25 | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/Plan Nacional de I+D+i 2008-2011/CGL2010-15767/ES/EVOLUCION DE LA NAO DURANTE LOS ULTIMOS 15000 AÑOS EN LA PENINSULA IBERICA Y EN AZORES A PARTIR DEL ESTUDIO DE REGISTROS LACUSTRES Y DATOS CLIMATICOS INSTRUMENTALES/ | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2013-40608-R/ES/RECONSTRUCCION DE LA NAO DURANTE LOS PERIODOS DE CAMBIO CLIMATICO RAPIDO DEL HOLOCENO/ | es_ES |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2016-75281-C2-1-R/ES/EL CLIMA HOLOCENO E IMPACTOS ECOLOGICOS DE LA INTERRELACION ENTRE EL PATRON DEL ATLANTICO ESTE (EA) Y LA OSCILACION DEL ATLANTICO NORTE (NAO) EN EL SUROESTE ATLANTICO EUROPEO/ | es_ES |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2016-75281-C2-2-R/ES/EL CLIMA HOLOCENO E IMPACTOS ECOLOGICOS DE LA INTERRELACION ENTRE EL PATRON DEL ATLANTICO ESTE (EA) Y LA OSCILACION DEL ATLANTICO NORTE (NAO) EN EL SUROESTE ATLANTICO EUROPEO/ | es_ES |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RYC2020-029253-I/ES/ | es_ES |
dc.relation.uri | https://doi.org/10.1016/j.quascirev.2023.107968 | es_ES |
dc.rights | Atribución-NoComercial-SinDerivadas 4.0 Internacional | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Paleolimnology | es_ES |
dc.subject | Diatoms | es_ES |
dc.subject | Fossil pigments | es_ES |
dc.subject | Global warming | es_ES |
dc.subject | Holocene climate | es_ES |
dc.subject | Remote islands | es_ES |
dc.title | Recent Global Warming Induces the Coupling of Dissimilar Long-Term Sedimentary Signatures in Two Adjacent Volcanic Lakes (Azores Archipelago, Portugal) | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.access | info:eu-repo/semantics/openAccess | es_ES |
UDC.journalTitle | Quaternary Science Reviews | es_ES |
UDC.volume | 303 (1 March 2023) | es_ES |
UDC.startPage | 107968 | es_ES |
dc.identifier.doi | 10.1016/j.quascirev.2023.107968 |
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