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dc.creatorvan Bellen, Simon-
dc.creatorMauquoy, Dmitri-
dc.creatorHughes, Paul DM-
dc.creatorRoland, Thomas P.-
dc.creatorDaley, Tim J.-
dc.creatorLoader, Neil J.-
dc.creatorStreet Perrott, F. Alayne-
dc.creatorRice, Emma M.-
dc.creatorPancotto, Veronica Andrea-
dc.creatorPayne, Richard J.-
dc.date2016-12-02T19:31:12Z-
dc.date2016-12-02T19:31:12Z-
dc.date2015-10-
dc.date2016-12-01T19:55:10Z-
dc.date.accessioned2019-04-29T15:49:30Z-
dc.date.available2019-04-29T15:49:30Z-
dc.date.issued2015-10-
dc.identifiervan Bellen, Simon ; Mauquoy, Dmitri ; Hughes, Paul DM; Roland, Thomas P. ; Daley, Tim J. ; et al.; Late-Holocene climate dynamics recorded in the peat bogs of Tierra del Fuego, South America; Sage Publications Ltd; Holocene (sevenoaks); 26; 3; 10-2015; 489-501-
dc.identifier0959-6836-
dc.identifierhttp://hdl.handle.net/11336/8712-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/303028-
dc.descriptionThe ombrotrophic peat bogs of Tierra del Fuego are located within the southern westerly wind belt (SWWB), which dominates climate variability in this region. We have reconstructed late-Holocene water-table depths from three peat bogs and aimed to relate these records to shifts in regional climate. Water-table depths were quantified by the analysis of testate amoeba assemblages, and a regional transfer function was used to infer past water-table depths. During the last 2000years, testate amoeba assemblages have been relatively stable, with a dominance of Difflugia pulex and Difflugia pristis type, and an increase in Assulina muscorum and other Euglyphida at the top of each section. Multivariate analyses show that water-table depth remained the main environmental variable explaining assemblages along the TiA12 core, but reconstructions were not significant for the two other cores. In line with the low variability in assemblages, water tables were relatively stable during the last 2000years. Slightly wetter conditions were found between ~1400 and 900 cal. BP and a pronounced recent dry shift was reconstructed in all of the three peat profiles. Considering the regional climatic context, this recent shift may have been forced by a decrease in precipitation and warmer conditions linked to an increase in the importance of the SWWB. Nevertheless, we cannot exclude the influence of higher UV-B radiation resulting from the local degradation of the ozone layer since the late 1970s, which may have had an additional effect on the relative presence of A. muscorum in the southern Patagonian region.-
dc.descriptionFil: van Bellen, Simon . University Of Aberdeen; Reino Unido. Universite Du Quebec A Montreal; Canadá-
dc.descriptionFil: Mauquoy, Dmitri . University Of Aberdeen; Reino Unido-
dc.descriptionFil: Hughes, Paul DM. University Of Southampton; Reino Unido-
dc.descriptionFil: Roland, Thomas P. . University Of Southampton; Reino Unido-
dc.descriptionFil: Daley, Tim J. . Plymouth University; Reino Unido-
dc.descriptionFil: Loader, Neil J. . Swansea University; Reino Unido-
dc.descriptionFil: Street Perrott, F. Alayne. Swansea University; Reino Unido-
dc.descriptionFil: Rice, Emma M.. Plymouth University; Reino Unido-
dc.descriptionFil: Pancotto, Veronica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina-
dc.descriptionFil: Payne, Richard J.. University Of York; Reino Unido-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherSage Publications Ltd-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1177/0959683615609756-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://hol.sagepub.com/content/26/3/489-
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.rightshttps://creativecommons.org/licenses/by/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.subjectASSULINA MUSCORUM-
dc.subjectPALAEOSIG-
dc.subjectPATAGONIA-
dc.subjectSOUTHERN ANNULAR MODE-
dc.subjectSOUTHERN WESTERLY WIND-
dc.subjectUV-B-
dc.subjectEcología-
dc.subjectCiencias Biológicas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleLate-Holocene climate dynamics recorded in the peat bogs of Tierra del Fuego, South America-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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