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  A two-step expansion of the dinocyst Lingulodinium machaerophorum in the Caspian Sea: the role of changing environment

Leroy, S., Lahijani, H., Reyss, J., Chalie, F., Haghani, S., Shah-Hosseini, M., et al. (2013). A two-step expansion of the dinocyst Lingulodinium machaerophorum in the Caspian Sea: the role of changing environment. Quaternary Science Reviews, 77, 31-45. doi:10.1016/j.quascirev.2013.06.026.

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Leroy, S.A.G., Autor
Lahijani, H.A.K., Autor
Reyss, J.L., Autor
Chalie, F., Autor
Haghani, S., Autor
Shah-Hosseini, M., Autor
Shahkarami, S., Autor
Tudryn, A., Autor
Arpe, Klaus1, Autor           
Habibi, P., Autor
Nasrollahzadeh, H.S., Autor
Makhlough, A., Autor
Affiliations:
1The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society, ou_913550              

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 Zusammenfassung: Dinoflagellate cyst assemblages were analysed in four short sediment cores collected in the south Basin of the Caspian Sea for assessing environmental changes over the last few millennia. Two of these cores were dated by radionuclides. The sedimentation rate of one of them was very high, in the order of 20 mm per year. The interpretation of the four sequences is supported by a collection of 27 lagoonal or marine surface sediment samples. A sharp increase in the concentration of the dinocyst occurs after 1967, especially owing to Lingulodinium machaerophorum. Considering nine other cores covering parts or the whole of Holocene, it became clear that this species started to develop in the Caspian Sea only during the last three millennia. By analysing instrumental data and collating existing reconstructions of sea level changes over the last decades, we show that the main forcing for the recent increase of L. machaerophorum percentages and concentration is global climate change, especially sea surface temperature increase. Sea level fluctuations likely only have a minor impact. We argue that the recent increase in L. machaerophorum indicates that the Caspian Sea clearly is in the Anthropocene.

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Sprache(n): eng - English
 Datum: 2013-10
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.quascirev.2013.06.026
 Art des Abschluß: -

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Titel: Quaternary Science Reviews
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Oxford : Pergamon
Seiten: - Band / Heft: 77 Artikelnummer: - Start- / Endseite: 31 - 45 Identifikator: ISSN: 0277-3791
CoNE: https://pure.mpg.de/cone/journals/resource/954925505268