Reis L. S. auteur aut IRD Bouloubassi I. auteur aut IRD Mendez-Millan Mercedes auteur aut IRD Guimaraes J. T. F. auteur aut IRD Romeiro L. D. auteur aut IRD Sahoo P. K. auteur aut IRD Pessenda L. C. R. auteur aut IRD text journalArticle eng text/pdf born digital access Stable isotope analysis of plant waxes (delta C-13(wax) and delta D-wax) along with detailed pollen data provide a new perspective on vegetation and precipitation variability in Serra Sul de Carajas, southeastern (SE) Amazonia, over the past similar to 25 cal kyr BP. The delta D-wax record indicates drier conditions during the Last Glacial Maximum (LGM) and a transition to wetter conditions into the Holocene, while the delta C-13(wax) data reveal that vegetation did not experienced C-3/C-4 shifts and remained dominated by C-3-plant communities. Under glacial conditions C-3-savanna was prominent on the Serra Sul plateau with tropical forest areas limited to the lower slopes. Tropical forests expanded upslope and forest patches developed on the plateau as a response to more humid and warmer conditions during the Holocene. Pollen data indicate a shift towards more open landscape of savanna, woodlands, and open forests during the mid-Holocene. The delta D-wax record exhibits a distinct moisture variability during the Holocene, not always coherent with the vegetation data (pollen), especially during the mid-Holocene interval. Our study confirms the complexity and the overall lack of coherence among Holocene moisture proxy records throughout the monsoon domain in South America and suggest that Holocene local moisture conditions might not follow the regional monsoonal variability. Our data further stress the need for more multi-proxy reconstructions of hydroclimate patterns in SE Amazonia. specialized Amazon basin Plant-wax biomarkers Compound-specific stable isotopes Pollen Last glacial period Holocene Paleoclimate BRESIL PARA AMAZONIE AMAZONE BASSIN AMENDOIM LAC 021 076 082 064 284 107466 [15 p.] 2022 0277-3791 https://www.documentation.ird.fr/hor/fdi:010085133 10.1016/j.quascirev.2022.107466 0277-3791 [F B010085133] https://www.documentation.ird.fr/hor/fdi:010085133 https://www.documentation.ird.fr/intranet/publi/2022-07/010085133.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2022-07-01 2025-02-24 fdi:010085133 fre