This study presents the first multi‐proxy palaeoenvironmental and palaeoclimatic history for northern South America based on the palaeolimnological reconstruction of a pond located in a dry paramo at 3570 masl. During the Last Glacial Maximum (LGM), the study area was under glacial conditions, then during global events Heinrich Stadial 1 (HS1), Bølling–Allerød (BA), and the Younger Dryas (YD), the pond expanded, accumulation rates and proxies for erosion reached the highest values, indicative of humid conditions, with maxima in humidity during the BA and YD. Dry conditions and pond desiccation occurred in the Greenlandian–Northgrippian and by 6010 cal a bp the area was transformed into the mire of today. Comparisons with records from other sites in South America indicate that changes in humidity are most likely controlled by the Intertropical Convergence Zone, mainly during the glacial and postglacial, and by changes in the Pacific Ocean, more pronounced after the YD.

中文翻译：

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安第斯山脉北部晚更新世-全新世的淡水准分子生态系统的环境和气候历史

这项研究基于位于3570 masl干燥干旱区的一个池塘的古生物学重建，介绍了南美洲北部的第一个多代理古环境和古气候历史。在上次冰期最高期（LGM）期间，研究区域处于冰期条件下，然后在全球性事件海因里希体育场1（HS1），伯灵–阿勒ød（BA）和年轻树妖（YD）期间，池塘扩大了，蓄积率和在BA和YD期间，最大的湿度代表湿度指标，表明湿度条件。干燥条件和池塘干燥发生在Greenlandian-Northgrippian和6010 CAL一个基点该地区已变成今天的泥潭。与南美其他地区的记录进行的比较表明，湿度变化最有可能受热带辐合带控制，主要是在冰川和冰川后，而太平洋地区的变化则在YD之后更为明显。