Correction: Corrigendum: Global patterns of declining temperature variability from the Last Glacial Maximum to the Holocene

Late Quaternary climatic fluctuations in the Northern Hemisphere had drastic effects on large mammal species, leading to the extinction of a substantial number of them. The giant deer ( Megaloceros giganteus ) was one of the species that became extinct in the Holocene, around 7660 calendar years before present. In the Late Pleistocene, the species ranged from western Europe to central Asia. However, during the Holocene, its range contracted to eastern Europe and western Siberia, where the last populations of the species occurred. Here, we generated 35 Late Pleistocene and Holocene giant deer mitogenomes to explore the genetics of the demise of this iconic species. Bayesian phylogenetic analyses of the mitogenomes suggested five main clades for the species: three pre-Last Glacial Maximum clades that did not appear in the post-Last Glacial Maximum genetic pool, and two clades that showed continuity into the Holocene. Our study also identified a decrease in genetic diversity starting in Marine Isotope Stage 3 and accelerating during the Last Glacial Maximum. This reduction in genetic diversity during the Last Glacial Maximum, coupled with a major contraction of fossil occurrences, suggests that climate was a major driver in the dynamics of the giant deer.

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The Last Glacial Maximum in northern Baffin Bay

10.5194/egusphere-egu21-15295 ◽

2021 ◽

Author(s):

Karen Søby Özdemir ◽

Henrieka Detlef ◽

Linda Lambertucci ◽

Christof Pearce

Keyword(s):

Last Glacial Maximum ◽

Glacial Maximum ◽

Ice Shelf ◽

Radiocarbon Dates ◽

The Holocene ◽

Baffin Bay ◽

Last Glacial ◽

The Core ◽

The Last Glacial Maximum ◽

The Last Glacial

<p>Little is known about climate and ocean conditions during the Last Glacial Maximum in Baffin Bay, Greenland. This is partly due to the dissolution of biogenic carbonates in the central Baffin Bay, preventing reliable <sup>14</sup>C-chronologies. We present the results from a transect of gravity cores retrieved during the 2019 BIOS cruise on the HDMS Lauge Koch in the northern Baffin Bay. Core LK19-ST8-14G has been analyzed for grain size variations, sea-ice biomarkers, XRF, and color spectrophotometry. A preliminary chronology based on radiocarbon dates from foraminifera show that the bottom of the core is approximately 35.000 cal. years BP while the top sediments are of Late Holocene age. The sediment archive thus covers the full extent of the LGM and the last deglaciation. High-resolution photography and CT scans allowed the identification of distinctly different lithofacies in the sediment archive. The lower sections of the core are characterized by laminated mud with no IRD and absence of microfossils indicating a sub ice-shelf environment during the glacial period. The laminated sequence is interrupted by several coarser, detrital-carbonate (DC) rich layers which are interpreted as episodes of glacial retreat or ice-shelf collapse. The youngest of these DC layers immediately precedes the Holocene, which is represented by approximately 40 cm of bioturbated sediments with some IRD. This interpretation is supported by the concentrations of HBIs and sterols throughout the core, which indicate near perennial ice cover in the glacial northern Baffin Bay and more open water conditions during the Holocene.</p>

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Synthetic reconstructions of southern African environments during the Last Glacial Maximum (21–18kyr) and the Holocene Altithermal (8–6kyr)

Quaternary International ◽

10.1016/s1040-6182(98)00061-5 ◽

1999 ◽

Vol 57-58 ◽

pp. 207-214 ◽

Cited By ~ 74

Author(s):

T.C. Partridge ◽

L. Scott ◽

J.E. Hamilton

Keyword(s):

Last Glacial Maximum ◽

Glacial Maximum ◽

The Holocene ◽

Last Glacial ◽

The Last Glacial Maximum ◽

The Last Glacial

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