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McIntyre A. Barrera on Muck Rack

McIntyre A. Barrera

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Ground squirrel coprolites preserve complex archives of ancient environmental DNA over 700,000 years

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By Tyler J. Murchie, Scott Cocker, Sina Baleka, Nicola Alexandra Vogel, Libby Natola, Emil Karpinski, Diana Tirlea, McIntyre A. Barrera, Danielle Grant, Evan Morien, George Long, Linda Y. Rutledge, Grant Zazula, Britta Jensen, Duane G Froese, Hendrik Poinar
| Nature Verified
Abstract Permafrost-preserved ground squirrel (Urocitellus) burrows in Yukon, Canada contain coprolites (palaeofaeces) that span from the Holocene to at least the Middle Pleistocene (~700 kya). Using shotgun metagenomics and targeted enrichment, we recover a rich, multi-taxon spectrum of ancient environmental DNA from these pellets, including: plants, insects, microbes, and megafauna consistent with eastern Beringian ecosystems.
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