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dc.contributor.author Musotto, Lorena Laura
dc.contributor.author Borromei, Ana Maria
dc.contributor.author Bianchinotti, Maria Virginia
dc.contributor.author Coronato, Andrea Maria Josefa
dc.date.available 2018-10-30T18:49:28Z
dc.date.issued 2017-06
dc.identifier.citation Musotto, Lorena Laura; Borromei, Ana Maria; Bianchinotti, Maria Virginia; Coronato, Andrea Maria Josefa; Late Quaternary palaeoenvironmental reconstruction of central Tierra del Fuego (Argentina) based on pollen and fungi; Pergamon-Elsevier Science Ltd; Quaternary International; 442; 6-2017; 13-25
dc.identifier.issn 1040-6182
dc.identifier.uri http://hdl.handle.net/11336/63333
dc.description.abstract This paper presents the main palaeoenvironmental results obtained from two sites located in the eastern (La Correntina peat bog) and southern (Terra Australis peat bog) sectors of the Lake Fagnano area, situated at 54° S on the Tierra del Fuego island, at the southernmost extreme of Patagonia. Here, we provide an overview of the postglacial ecosystem and vegetation dynamics on both slopes of the Fuegian Andes by combining palynological records of pollen and fungal remains analyses, supported by radiocarbon datings and multivariate statistics. The pollen data from the two sites indicate initial shrubby and herbaceous vegetation with scattered trees, under drier and colder climate conditions than today. Expansion of Nothofagus forest began about 11,200 cal BP in the Terra Australis area, while an open vegetation of grasslands and shrubs developed around La Correntina site by 11,500 cal BP followed by the establishment of the forest-steppe ecotone after 9400 cal BP. These vegetation changes implied a modification of the climate toward warmer and drier climate conditions than present. At both sites, the predominance of the mycorrhizal Glomus was related to the presence of open ground grassland, indicating relatively dry local conditions. Closed-canopy forests dominated the landscape after 6500 cal BP at Terra Australis, and after 5000 cal BP at La Correntina, suggesting relatively cold and wet environmental conditions. However, the fungal assemblage in Terra Australis shows high abundances of epiphyllous Microthyriaceae, pointing that the Nothofagus trees grew closer than at La Correntina. These findings allow us to conclude that both mires have experienced dissimilar trends in the environmental evolution since Late-glacial times, probably due to their locations in two distinct flanks of the Andean range.
dc.format application/pdf
dc.language.iso eng
dc.publisher Pergamon-Elsevier Science Ltd
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject FUNGAL REMAINS
dc.subject LAKE FAGNANO
dc.subject LATE PLEISTOCENE–HOLOCENE
dc.subject PALAEOENVIRONMENTAL RECONSTRUCTION
dc.subject POLLEN
dc.subject TIERRA DEL FUEGO
dc.subject.classification Paleontología
dc.subject.classification Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Late Quaternary palaeoenvironmental reconstruction of central Tierra del Fuego (Argentina) based on pollen and fungi
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2018-10-19T20:41:37Z
dc.journal.volume 442
dc.journal.pagination 13-25
dc.journal.pais Estados Unidos
dc.description.fil Fil: Musotto, Lorena Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
dc.description.fil Fil: Borromei, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
dc.description.fil Fil: Bianchinotti, Maria Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
dc.description.fil Fil: Coronato, Andrea Maria Josefa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.journal.title Quaternary International
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1040618215301270#!
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.quaint.2016.01.071
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)