ArticleArctic, antarctic, and alpine research2026
Continuity of eastern Beringian megafauna phylogenetic diversity following deposition of the Late Pleistocene Dawson tephra.
Article in Arctic, antarctic, and alpine research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
Volcanic eruptions can deposit ash, or tephra, across the landscape hundreds to thousands of kilometers from the source volcano. The ecological and genetic effects of ancient ashfall events are only known sparsely from the geological record and from modern genomic studies. About 29,000 years ago, a volcanic eruption in the Aleutian archipelago deposited ash across the eastern Beringian mammoth steppe. The resulting Dawson tephra is visible in loess deposits in interior Alaska and Yukon, with thicknesses ranging from 5 to 80 cm at a distance of 1,700 km from its source. To explore the impact of this ashfall event on ecosystem dynamics, we used sedimentary ancient DNA (
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