Woodlands and steppes: Pleistocene vegetation in Yakutia's most continental part recorded in the Batagay permafrost sequence

Ashastina, Kseniia; Kuzmina, Svetlana; Rudaya, Natalia; Troeva, Elena; Schoch, Werner H.; Römermann, Christine; Reinecke, Jennifer; Otte, Volker; Savvinov, Grigoriy; Wesche, Karsten; Kienast, Frank

doi:10.1016/j.quascirev.2018.07.032

Cited by 45 publications

(62 citation statements)

References 63 publications

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“…While Andreev et al (2011) deduce colder-than-present summers from pollen and insect assemblages along the Arctic Ocean coastline, Kienast et al (2005) and Sher et al (2005) interpret macrofossil, insect, and mammal findings from the Lena delta as indicators of warmer or similar to present-day summer temperatures. Pitul'Ko et al (2007) and Ashastina et al (2018) infer slightly cooler LGM summer temperatures from pollen records in the Yana region between Lena and Kolyma.…”

Section: Introductionmentioning

confidence: 99%

“…In high-latitude Central Siberia and along the Arctic Ocean coastline, dryer conditions than today are reconstructed from a variety of proxies (e.g. Sher et al, 2005;Pitul'Ko et al, 2007;Andreev et al, 2011;Ashastina et al, 2018;Opel et al, 2019). Stable isotope analyses and macrofossils indicate regionally homogeneous colder winter temperatures (e.g.…”

Section: Introductionmentioning

confidence: 99%

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A spatial reconstruction of Siberian Last Glacial Maximum climate from pollen data

Weitzel¹,

Hense²,

Herzschuh³

et al. 2022

Preprint

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The Last Glacial Maximum (LGM, around 21.000 years before present) was a period with significantly colder global mean temperature, large Northern Hemisphere ice sheets, and lower CO2 concentrations. Siberia was affected by a lower sea level which led to a closed Bering strait and a northward shift of the Arctic Ocean coastline. However, unlike other high-latitude areas, Siberia was not covered by a terrestrial ice sheet at that time. Climate simulations with LGM boundary conditions show large inter-model differences especially in Northern Siberia, which impede a direct analysis of Siberian LGM climate from simulations. Preserved pollen samples provide information on the LGM vegetation and climate state.We reconstruct mean temperature of the warmest month and mean annual precipitation from a network of pollen samples using weighted averaging partial least squares transfer functions. Combining these local reconstructions with a multi-model ensemble of PMIP3 climate simulations in a Bayesian framework, we obtain the first probabilistic spatial reconstruction of Siberian LGM climate. Our reconstruction shows less cold summer temperature anomalies along the coastlines than in Western Siberia, and a weaker precipitation reduction in Eastern Siberia compared to Western Siberia. Finally, we quantify the mismatch between each ensemble member and the proxy data. By examining common features among similarly performing simulations, we find that most simulations with a comparatively warm and wet Siberian climate score better.Our data constrained state estimate is well-suited for future analyses of Siberian LGM climate. Potential applications include the investigation of reasons for the absence of a Siberian ice sheet during the LGM, the quantification of land-atmosphere carbon fluxes, and the estimation of past afforestation rates.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A spatial reconstruction of Siberian Last Glacial Maximum climate from pollen data

Weitzel¹,

Hense²,

Herzschuh³

et al. 2022

Preprint

View full text Add to dashboard Cite

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Section: Discussionmentioning

confidence: 99%

“…Quaternary palaeoecologists have paid great attention to the reconstruction of Pleistocene Beringian climate, landscapes and terrestrial biomes 3,48,49 . Since the 1980s, a concept of "tundra-steppe" (="mammoth steppe") has been discussed intensively 3,[50][51][52] . Now it is accepted that the terrestrial vegetation in Pleistocene Beringia was mosaic; in the region where the Yuka mammoth lived, "zonal tundra-steppe might have been combined with mesic-xeric meadows enriched with steppe elements" 15 .…”

Section: Discussionmentioning

confidence: 99%

“…Pleistocene palaeoenvironmental studies are becoming increasingly comprehensive. Palaeo-objects are investigated by different experts, and comprehensive (multi-proxy) palaeoecological and palaeoclimatic reconstructions based on organic remains from samples, cores or outcrops are attempted [1][2][3] . Frozen permafrost Pleistocene mammal carcasses with soft tissue remains are especially valuable.…”

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confidence: 99%

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Crustacean remains from the Yuka mammoth raise questions about non-analogue freshwater communities in the Beringian region during the Pleistocene

Neretina

Gololobova

Neplyukhina

et al. 2020

Sci Rep

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frozen permafrost pleistocene mammal carcasses with soft tissue remains are subject to intensive study and help elucidate the palaeoenvironment where these animals lived. Here we present an inventory of the freshwater fauna and flora found in a sediment sample from the mummified Woolly Mammoth carcass found in August 2010, from the Oyogos Yar coast near the Kondratievo River in the Laptev Sea region, Sakha (Yakutia) Republic, ne Russia. our study demonstrates that the waterbody where the carcass was buried could be characterized as a shallow pond or lake inhabited mainly by taxa which are present in this area today, but additionally by some branchiopod crustacean taxa currently absent or unusual in the region although they exist in the arid zone of eurasia (steppes and semideserts). These findings suggest that some "non-analogue" crustacean communities co-existed with the "Mammoth fauna". Our findings raise questions about the nature of the waterbodies that existed in Beringia during the MIS3 climatic optimum when the mammoth was alive.

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Pleistocene glacial and interglacial ecosystems inferred from ancient DNA analyses of permafrost sediments from Batagay megaslump, East Siberia

et al. 2022

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Woodlands and steppes: Pleistocene vegetation in Yakutia's most continental part recorded in the Batagay permafrost sequence

Cited by 45 publications

References 63 publications

A spatial reconstruction of Siberian Last Glacial Maximum climate from pollen data

A spatial reconstruction of Siberian Last Glacial Maximum climate from pollen data

Crustacean remains from the Yuka mammoth raise questions about non-analogue freshwater communities in the Beringian region during the Pleistocene

Pleistocene glacial and interglacial ecosystems inferred from ancient DNA analyses of permafrost sediments from Batagay megaslump, East Siberia

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