TY  - JOUR
A1  - Ashastina, Kseniia
A1  - Kuzmina, Svetlana
A1  - Rudaya, Natalia
A1  - Troeva, Elena
A1  - Schoch, Werner H.
A1  - Roemermann, Christine
A1  - Reinecke, Jennifer
A1  - Otte, Volker
A1  - Savvinov, Grigoriy
A1  - Wesche, Karsten
A1  - Kienast, Frank
T1  - Woodlands and steppes
BT  - Pleistocene vegetation in Yakutia's most continental part recorded in the Batagay permafrost sequence
JF  - Quaternary science reviews : the international multidisciplinary research and review journal
N2  - Based on fossil organism remains including plant macrofossils, charcoal, pollen, and invertebrates preserved in syngenetic deposits of the Batagay permafrost sequence in the Siberian Yana Highlands, we reconstructed the environmental history during marine isotope stages (MIS) 6 to 2. Two fossil assemblages, exceptionally rich in plant remains, allowed for a detailed description of the palaeo-vegetation during two climate extremes of the Late Pleistocene, the onset of the last glacial maximum (LGM) and the last interglacial. In addition, altogether 41 assemblages were used to outline the vegetation history since the penultimate cold stage of MIS 6. Accordingly, meadow steppes analogue to modern communities of the phytosociological order Festucetalia lenensis formed the primary vegetation during the Saalian and Weichselian cold stages. Cold-resistant tundra-steppe communities (Carici rupestris-Kobresietea bellardii) as they occur above the treeline today were, in contrast to more northern locations, mostly lacking. During the last interglacial, open coniferous woodland similar to modern larch taiga was the primary vegetation at the site. Abundant charcoal indicates wildfire events during the last interglacial. Zoogenic disturbances of the local vegetation were indicated by the presence of ruderal plants, especially by abundant Urtica dioica, suggesting that the area was an interglacial refugium for large herbivores. Meadow steppes, which formed the primary vegetation during cold stages and provided potentially suitable pastures for herbivores, were a significant constituent of the plant cover in the Yana Highlands also under the full warm stage conditions of the last interglacial. Consequently, meadow steppes occurred in the Yana Highlands during the entire investigated timespan from MIS 6 to MIS 2 documenting a remarkable environmental stability. Thus, the proportion of meadow steppe vegetation merely shifted in response to the respectively prevailing climatic conditions. Their persistence indicates low precipitation and a relatively warm growing season throughout and beyond the late Pleistocene. The studied fossil record also proves that modern steppe occurrences in the Yana Highlands did not establish as late as in the Holocene but instead are relicts of a formerly continuous steppe belt extending from Central Siberia to Northeast Yakutia during the Pleistocene. The persistence of plants and invertebrates characteristic of meadow steppe vegetation in interior Yakutia throughout the late Quaternary indicates climatic continuity and documents the suitability of this region as a refugium also for other organisms of the Pleistocene mammoth steppe including the iconic large herbivores. (C)2018 Elsevier Ltd. All rights reserved.
KW  - Palaeo-vegetation
KW  - Plant macrofossils
KW  - Invertebrates
KW  - Modern analogues
KW  - Pollen
KW  - Ground squirrel nest
KW  - Last cold stage
KW  - Eemian
KW  - Beringia
Y1  - 2018
U6  - https://doi.org/10.1016/j.quascirev.2018.07.032
SN  - 0277-3791
VL  - 196
SP  - 38
EP  - 61
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Kümmerling, Heidi
A1  - Rätzel, Stefan
A1  - Otte, Volker
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg : eine Anregung zur floristischen Arbeit
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Otte, Volker
A1  - Rätzel, Stefan
A1  - Kummer, Volker
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg III
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Otte, Volker
A1  - Rätzel, Stefan
A1  - Sipman, Harri J. M.
A1  - Kummer, Volker
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg V
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Otte, Volker
A1  - Rätzel, Stefan
A1  - Kummer, Volker
A1  - De Bruyn, Uwe
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg VI
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Rätzel, Stefan
A1  - Kummer, Volker
A1  - Otte, Volker
A1  - Sipman, Harri J. M
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg VII
Y1  - 2002
ER  -