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. 2018 May 17;8:7800. doi: 10.1038/s41598-018-24429-5

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Synthesis of paleoclimate, regional pollen, regional archaeology data and paleoecological data at from the Luis Carlos in Campo Belo do Sul at 8.5ky and 2ky resolution. Luis Carlos δ¹³C isotopic profile of soil organic matter is plotted as an age-depth model based on three AMS dates. The 8.5ky record shows increasing precipitation from Sr/Ca and δ¹⁸O data in the Botuverá speleothem, without a corresponding increase in regional Araucaria vegetation. The 2ky record shows the increase in SCPD and vegetation transition beginning prior to the wetter period between ca. 600 and 350 BP. Pollen data are charted as a percentage of total pollen counts.