Artículo

Mayr, C.; Fey, M.; Haberzettl, T.; Janssen, S.; Lücke, A.; Maidana, N.I.; Ohlendorf, C.; Schäbitz, F.; Schleser, G.H.; Struck, U.; Wille, M.; Zolitschka, B. "Palaeoenvironmental changes in southern Patagonia during the last millennium recorded in lake sediments from Laguna Azul (Argentina)" (2005) Palaeogeography, Palaeoclimatology, Palaeoecology. 228(3-4):203-227
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Abstract:

Marked environmental changes in the southern Patagonian steppe during the last 1100 years are detected by a multi-proxy study of radiocarbon-dated sediment cores from the crater lake Laguna Azul (52°05′S, 69°35′W). A prominent shift in carbon isotope records occurred between AD 1670 and AD 1890 induced by a change to cooler climate conditions with a concurrent lake level rise. A second perturbation of the lake ecosystem started with a fire event around AD 1830. The fire event triggered increased soil erosion initiating a change of the diatom assemblages. This shift in diatom assemblages may have been enhanced by shrinkage of littoral habitats and higher nutrient supply in the course of permanent European settlement at the end of the 19th century. The introduction of neophytes by European sheep farmers is confirmed by the permanent occurrence of Rumex pollen in the sediment record since the beginning of the 20th century. © 2005 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Palaeoenvironmental changes in southern Patagonia during the last millennium recorded in lake sediments from Laguna Azul (Argentina)
Autor:Mayr, C.; Fey, M.; Haberzettl, T.; Janssen, S.; Lücke, A.; Maidana, N.I.; Ohlendorf, C.; Schäbitz, F.; Schleser, G.H.; Struck, U.; Wille, M.; Zolitschka, B.
Filiación:Institut für Chemie und Dynamik der Geosphäre, ICG V: Sedimentäre Systeme, Forschungszentrum Jülich, D-52425 Jülich, Germany
Geomorphologie und Polarforschung (GEOPOLAR), Institut für Geographie, Universität Bremen, Celsiusstr. FVG-M, D-28359 Bremen, Germany
Seminar für Geographie und Ihre Didaktik, Universität Zu Köln, Gronewaldstr. 2, D-50931 Köln, Germany
Departamento de Biodiversidad Y Biología Experimental, Universidad Nacional de Buenos Aires- CONICET, Ciudad Universitaria, C1428EHA. Buenos Aires, Argentina
GeoBio-CenterLMU, Ludwig-Maximilians-Universität München, Richard-Wagner-Str. 10, D-80333 München, Germany
Palabras clave:Diatoms; Geochemistry; Lake sediments; Patagonia; Pollen; Stable isotopes; climate change; Holocene; paleoenvironment; proxy climate record; steppe; Patagonia; South America; Western Hemisphere; World; Bacillariophyta; Ovis aries; Rumex
Año:2005
Volumen:228
Número:3-4
Página de inicio:203
Página de fin:227
DOI: http://dx.doi.org/10.1016/j.palaeo.2005.06.001
Título revista:Palaeogeography, Palaeoclimatology, Palaeoecology
Título revista abreviado:Palaeogeogr. Palaeoclimatol. Palaeoecol.
ISSN:00310182
CODEN:PPPYA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00310182_v228_n3-4_p203_Mayr

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Citas:

---------- APA ----------
Mayr, C., Fey, M., Haberzettl, T., Janssen, S., Lücke, A., Maidana, N.I., Ohlendorf, C.,..., Zolitschka, B. (2005) . Palaeoenvironmental changes in southern Patagonia during the last millennium recorded in lake sediments from Laguna Azul (Argentina). Palaeogeography, Palaeoclimatology, Palaeoecology, 228(3-4), 203-227.
http://dx.doi.org/10.1016/j.palaeo.2005.06.001
---------- CHICAGO ----------
Mayr, C., Fey, M., Haberzettl, T., Janssen, S., Lücke, A., Maidana, N.I., et al. "Palaeoenvironmental changes in southern Patagonia during the last millennium recorded in lake sediments from Laguna Azul (Argentina)" . Palaeogeography, Palaeoclimatology, Palaeoecology 228, no. 3-4 (2005) : 203-227.
http://dx.doi.org/10.1016/j.palaeo.2005.06.001
---------- MLA ----------
Mayr, C., Fey, M., Haberzettl, T., Janssen, S., Lücke, A., Maidana, N.I., et al. "Palaeoenvironmental changes in southern Patagonia during the last millennium recorded in lake sediments from Laguna Azul (Argentina)" . Palaeogeography, Palaeoclimatology, Palaeoecology, vol. 228, no. 3-4, 2005, pp. 203-227.
http://dx.doi.org/10.1016/j.palaeo.2005.06.001
---------- VANCOUVER ----------
Mayr, C., Fey, M., Haberzettl, T., Janssen, S., Lücke, A., Maidana, N.I., et al. Palaeoenvironmental changes in southern Patagonia during the last millennium recorded in lake sediments from Laguna Azul (Argentina). Palaeogeogr. Palaeoclimatol. Palaeoecol. 2005;228(3-4):203-227.
http://dx.doi.org/10.1016/j.palaeo.2005.06.001