Publications by authors named "Pamela A Santibanez"
Article Synopsis
- Polar and alpine ice records reveal the historical emissions of toxic heavy metals like lead, cadmium, and thallium, offering insights into environmental changes over the last three millennia.
- While the Northern Hemisphere has been well-studied in relation to major historical events, the Southern Hemisphere's pollution levels and historical contexts before the late 19th century remain largely unexplored.
- Recent findings from East Antarctic ice cores indicate that lead pollution began in the 13th century, was exacerbated during the Spanish Colonial period, and aligns with significant global events similar to trends observed in the Northern Hemisphere.
The Western Antarctic Peninsula (WAP) has undergone significant changes in air and seawater temperatures during the last 50 years. Although highly stenotherm Antarctic organisms are expected to be severely affected by the increase of seawater temperature, high-resolution datasets of seawater temperature within coastal areas of the WAP (where diverse marine communities have been reported) are not commonly available. Here we report on within-year (2016-2017) variation in seawater temperature at three sites on Doumer Island, Palmer Archipelago, WAP.
View Article and Find Full Text PDFWe present the first long-term, highly resolved prokaryotic cell concentration record obtained from a polar ice core. This record, obtained from the West Antarctic Ice Sheet (WAIS) Divide (WD) ice core, spanned from the Last Glacial Maximum (LGM) to the early Holocene (EH) and showed distinct fluctuations in prokaryotic cell concentration coincident with major climatic states. The time series also revealed a ~1,500-year periodicity with greater amplitude during the Last Deglaciation (LDG).
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