Fatima F Abrantes
National Institute of Engineering
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Featured researches published by Fatima F Abrantes.
Supplement to: Voelker, Antje HL; Rufino, Marta M; Salgueiro, Emilia; Abrantes, Fatima F: Impact of millennial-scale climate variability on North Atlantic planktonic foraminifer diversity. Quaternary Science Reviews, submitted | 2014
Antje H L Voelker; Marta M. Rufino; Emilia Salgueiro; Fatima F Abrantes
Greenland stadial/interstadial cycles are known to affect the North Atlantics hydrography and overturning circulation and to cause ecological changes on land (e.g., vegetation). Hardly any information, directly expressed as diversity indices, however, exists on the impacts of these millennial-scale variations on the marine flora and fauna. We calculated three diversity indices (species richness, Shannon diversity index, Hurlberts probability of interspecific encounter) for the planktonic foraminifer fauna found in 18 deep-sea cores covering a time span back to 60 ka. Clear differences in diversity response to the abrupt climate change can be observed and some records can be grouped accordingly. Core SO82-05 from the southern section of the subpolar gyre, the cores along the British margin and core MD04-2845 in the Bay of Biscay show two modes of diversity distribution, with reduced diversity (uneven fauna) during cold phases and the reverse (even fauna) during warm phases. Along the Iberian margin high species diversity prevailed throughout most of the glacial period. The exceptions were the Heinrich stadials when the fauna abruptly shifted from an even to an uneven or less even fauna. Diversity changes were often abrupt, but revealed a high resilience of the planktonic foraminifer faunas. The subtropical gyre waters seem to buffer the climatic effects of the Heinrich events and Greenland Stadials allowing for a quick recovery of the fauna after such an event. The current work clearly shows that planktonic foraminifer faunas quickly adapt to climate change, albeit with a reduced diversity.
Marine Micropaleontology | 2006
Isabelle M. Gil; Fatima F Abrantes; Dierk Hebbeln
Archive | 2004
Paul Martin; Antje H L Voelker; Susana Martin Lebreiro; Fatima F Abrantes
Multi-parameter characterization of surface sediments from the Minho estuary | 2012
Mário Mil-Homens; Ana Novo Costa; Cristina Isabel Lopes; Henrique Duarte; Teresa Rodrigues; Célia Teresa Santos; Ana Aranda Silva; Sandra Mateus; Catarina Cavaleiro; Fatima F Abrantes; Sandra Fonseca; R. Serrano; Maria Ascensão Trancoso; Rita Sousa; Manuela Mateus; Zenaida Melo
Archive | 2005
Luiz Carlos de Abreu; Fatima F Abrantes; Antje H L Voelker; Nicholas J Shackleton; P.C. Tzedakis; Jerry F. McManus; Delia W. Oppo; Emilia Salgueiro; Mark A. Hall
Archive | 2003
Emilia Salgueiro; Fatima F Abrantes; Neven Loncaric; Susana Martin Lebreiro; Juan Moreno; Uwe Pflaumann; Pedro Oliveira; Helge Meggers
Archive | 2003
Teresa Rodrigues; Joan O. Grimalt; José-Abel Flores; Susana Martin Lebreiro; Fatima F Abrantes
Archive | 2002
Fatima F Abrantes; Susana Martin Lebreiro; Afonso Ferreira; Isabelle M. Gil; H. Jonsdottir; Teresa Rodrigues; Catherine Kissel; Joan O. Grimalt
Archive | 2002
Antje H L Voelker; Susana Martin Lebreiro; Jason Schoenfeld; Fatima F Abrantes
Supplement to: Abrantes, FF et al. (submitted): The Climate of the Common Era off the Iberian Peninsula. Climate of the Past | 2017
Fatima F Abrantes; Teresa Rodrigues; Marta M. Rufino; Emilia Salgueiro; Dulce Oliveira; S. Gomes; Ana C. Costa; Mário Mil-Homens; Teresa Drago; Filipa Naughton