Vegetation and land snail-based reconstruction of the palaeocological changes in the forest steppe eco-region of the Carpathian Basin during last glacial warming

Sümegi, Pál; Molnár, Dávid; Náfrádi, Katalin; Makó, László; Cseh, Péter; Törőcsik, Tünde; Molnár, Mihály; Zhou, Liping

doi:10.1016/j.gecco.2021.e01976

Cited by 11 publications

(63 citation statements)

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“…Quaternary sediments containing shells of land snails are found in many areas across Europe (Alexandrowicz, 1987; Davies, 2008; Frank, 2006; Fuhrmann, 1973; Fűköh et al, 1995; Ložek, 1964; Puisségur, 1976) and databases collating the data on Quaternary distributions of European land snails are being developed (Horáčková et al, 2015; Limondin‐Lozouet et al, 2021; Sümegi et al, 2022). Dating of the earliest postglacial occurrences coupled with the identification of glacial refugia has the potential to reveal how much the distributions of snail species lag behind the climatic developments that they are expected to document.…”

Section: Discussionmentioning

confidence: 99%

Section: Integration Of Quaternary Fossilsmentioning

confidence: 99%

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In both directions: Expansions of European land snails to the north and south from glacial refugia

Korábek

Adamcová

Proćków

et al. 2022

Journal of Biogeography

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Aim: Were postglacial recolonizations facilitated by persistence close to the colonized areas rather than by dispersal ability allowing for colonization from distant sources? This question is particularly relevant for organisms with low active dispersal abilities and lacking specialized propagules. Here we identified glacial refugia of four Central European land snail species, including one for which a northern glacial refugium in the region was indicated by indirectly dated fossils.Location: Central Europe and the Balkans.Taxon: Pulmonate land snails: Monachoides incarnatus (Hygromiidae) and Helix pomatia, Helix thessalica and Caucasotachea vindobonensis (Helicidae). Methods:We used continuous phylogeographic analysis of mitochondrial sequence data to trace the origin of postglacially expanding lineages. We assessed the credibility of results from our focal species, M. incarnatus, by comparison to three other broadly sympatric land snail species. In addition, we performed direct radiocarbon dating of fossil shells to verify the presumed glacial presence of M. incarnatus on the territories of Czechia and Slovakia and to test the reliability of the available fossil data. Results:In three of the four species, the molecular data supported refugia located south of the Pannonian Basin, from the south-eastern Alps to the south-western Carpathians, but not more northerly. The direct radiocarbon dating resulted in younger dates than previously assumed. However, the molecular data also revealed unexpected, yet substantial postglacial southward expansions of M. incarnatus and C. vindobonensis into the Balkans.Main Conclusions: Neither the phylogeographic analyses nor the direct radiocarbon dating provided evidence for the glacial survival of studied land snail species in Central Europe. The refugia located adjacent to the Pannonian Basin were the most important source of postglacial expansions to Central Europe, but were also the source of the expansion southwards. Both climatic factors and biological interactions might explain why such southward expansions seem rather rare in Europe.

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Section: Discussionmentioning

confidence: 99%

Section: Integration Of Quaternary Fossilsmentioning

confidence: 99%

In both directions: Expansions of European land snails to the north and south from glacial refugia

Korábek

Adamcová

Proćków

et al. 2022

Journal of Biogeography

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“…Very similar MTWA values are also reported in Siberia today in permafrost‐affected terrain (ncei.noaa.gov in Zepner 86 ). Palynological data revealed a mosaic of mixed forest–steppe structure (birch, alder, willow, Norway pine) with patches of taiga and cold steppe, but also scattered tundra‐like vegetation, while malacological studies identified cold‐loving, then cold‐tolerant terrestrial snail fauna in the basin throughout the LGM 79,82,87 . δ 18 O data derived from mammoth tusk dentin samples suggest an MAAT of 2.4°C for 21.250 ± 0.45 ka cal BP (village of Zók) and 8.1°C for 16.249 ± 0.413 ka cal BP (village of Csajág) 84 .…”

Section: Discussionmentioning

confidence: 99%

“…There are several proxies which have been used to reconstruct paleoclimatic conditions during the LGM in the Pannonian Basin, such as data retrieved from groundwater recharge temperature, 78 pollen analysis, 79 and malacological data, [80][81][82][83] and stable isotope signal of mammoth tusk dentin 84 findings. Certain problems arose, however, when trying to put the results together; namely, their spatial distribution is rather sporadic, and they point to different climatic parameters, that is determining the mean annual air temperature (MAAT) or the mean temperature of the warmest month (MTWA).…”

Section: The Interpretation Of Paleoclimatic Proxies In the Pannonian...mentioning

confidence: 99%

Characterization and mapping of MIS‐2 thermal contraction crack polygons in Western Transdanubia, Hungary

Farkas

Sípos

Bartyik

et al. 2023

Permafrost & Periglacial

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The Pannonian Basin was located in the southernmost, disputed limit of permafrost during the Last Glacial Maximum (LGM). In the western part of the basin, over an area of 1,200 km2, more than 150 sites with polygonal patterned ground were surveyed, and 72 sediment samples from forms identified as relict sand wedges were collected. Ten optically stimulated luminescence ages were obtained from the infills, while morphometric analyses were also carried out on satellite images. Our study revealed that the polygonal networks developed in several phases, from 15.01 ± 1.68 to 23.0 ± 1.7 ka. The polygons have an average diameter of 13–23 m and are mainly present on flat surfaces, intruding into the gravelly, alluvial host of the paleo‐Rába. Statistical analyses highlighted the short transportation period of the sandy infill and multiple sediment provenances. This study adds further data to assess the presence of permafrost or deep seasonal frost and to the interpretation of the LGM in the central European periglacial domain.

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“…However, a general southward shift of westerly storm tracks from a northwest-to-southeast direction over Europe towards a west-to-east direction over the Mediterranean Sea is widely accepted for the LGM 101 . These mechanisms introduced a situation to Europe that was characterised by the coexistence of areas with serious environmental dryness, and neighbouring areas of reduced dryness or even more humid conditions (higher moisture availability) 46 , 102 . For example, early to middle Pleniglacial loess strata in central Europe characterized by several interposed weathering phases experienced a strong increase of accumulation rates after 34 ka, resulting in the formation of loess with much lower clay and organic carbon contents 6 , 7 .…”

Section: Discussionmentioning

confidence: 99%

Last glacial loess dynamics in the Southern Caucasus (NE-Armenia) and the phenomenon of missing loess deposition during MIS-2

Wolf

Lomax

Sahakyan

et al. 2022

Sci Rep

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The Marine Isotope Stage (MIS) 2 is considered the coldest, driest and stormiest period during the last Glacial-Interglacial cycle in large parts of Eurasia. This resulted from strongly decreased northern hemisphere temperature and related maximum extension of northern ice sheets that strongly reinforced large-scale circulation modes such as westerlies and East Asian Winter Monsoon driven by the Siberian High. Normally, this intensified circulation is reflected by maximum loess deposition in numerous loess regions spanning Europe and Asia. However, here we present a new loess record from the Caucasus region in NE-Armenia providing evidence in support of heavily reduced or even lacking loess formation during the MIS-2. Owing to implementations of comprehensible luminescence dating work and a provenance survey using rock magnetic and geochemical data, we are able to define distinct loess formation phases and to retrace sediment transport pathways. By comparing our results to other Eurasian palaeo-records, we unveil general atmospheric circulation modes that are most likely responsible for loess formation in the Southern Caucasus. Moreover, we try to test different scenarios to explain lacking loess formation during MIS-2. In line with other archive information, we suggest that loess formation was hampered by higher regional moisture conditions caused by a southward-shift of westerlies and renewed moisture absorption over the Black Sea. Our results show that modifications of MIS-2 circulation modes induced a very heterogeneous moisture distribution, particularly in the lower mid-latitudes of Eurasia producing a juxtaposition of very dry (morphodynamically active) and moderately dry (morphodynamically stable) areas.

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Vegetation and land snail-based reconstruction of the palaeocological changes in the forest steppe eco-region of the Carpathian Basin during last glacial warming

Cited by 11 publications

References 154 publications

In both directions: Expansions of European land snails to the north and south from glacial refugia

In both directions: Expansions of European land snails to the north and south from glacial refugia

Characterization and mapping of MIS‐2 thermal contraction crack polygons in Western Transdanubia, Hungary

Last glacial loess dynamics in the Southern Caucasus (NE-Armenia) and the phenomenon of missing loess deposition during MIS-2

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