Vegetation changes were documented across the last interglacial period (MIS 5e, Eemian) and continuing through the older part of the last glacial period (MIS 5d–a, early Weichselian). This study was based on pollen data collected at the Jałówka site, NE Poland. Two cold oscillations appeared within warm periods during this stage of the upper Pleistocene. The older oscillation was the temporary intra–interglacial cooling at the end of the Eemian. The younger one was the intra–interstadial cooling that occurred within the oldest interstadial of the early Weichselian (MIS 5c, Brørup). This last event corresponds well to the stadial separating both the Amersfoort and Brørup sensu stricto interstadials in the Netherlands and to the Montaigu event as recognized in France. The development of a pollen sequence allows speculation as to potential correlations with Greenland ice cores and marine records. We suggest that the Eemian in NE Poland may comprise not only MIS 5e, but also a part of MIS 5d. This supposition could shed light on potential for non-synchrony in upper boundaries of the MIS 5e and terrestrial Eemian in Europe. We await the development of more precise independent dating controls to validate our theory more assiduously.

<p>Artykuł stanowi pierwsze opracowanie typów mikrofosyliów pozapyłkowych (ang. non-pollen palynomorphs; NPP) występujących w próbkach palinologicznych z torfowisk Polesia Lubelskiego i stanowiących istotne bioindykatory zmian paleohydrologicznych w holocenie. Analizie na obecność NPP poddano torfy z trzech stanowisk: Płotycze, Mytycze i Durne Bagno.  Oznaczono kilkanaście typów NPP wśród których występowały mikrofosylia pochodzenia zwierzęcego i grzybowego. Te same typy mikrofosyliów pozapyłkowych są powszechnie w torfowiskach Niżu Europejskiego. Większość z nich stanowią bowiem gatunki kosmopolityczne. Zidentyfikowane NPP w torfach Polesia Lubelskiego są zgodne z opisami zawartymi w międzynarodowych kluczach do oznaczania. </p>

<p>The study focused on reconstruction of the extreme hydrological changes within the bog surrounding the lake Płotycze near Sobibór over the past 200 years. The site has been located within the reserve „Three Lakes”, in the Sobibór Landscape Park. The main aim was to determine the intensity of these changes and to determine the extent to which allogeneic and indigenous factors resulted in the functioning of peat bog. Analysis consisted of 0.60 m peat core extracted from the northwestern part of the bog, including the youngest periods in the history of the bog. This section, as follows directly from historical data, is also a carrier of data on intensive human impact on the area. As a research method testate amoebae analysis was used. These organisms belong to the dominant group of peat microorganisms. The results obtained enabled to determine two main paleohydrology phases in the last 200 years of the peat bog history. These phases have been correlated with historical data and with the results of previous studies carried out in the peat bog, i.e. reconstruction of water level changes based on data mapping using GIS tools and the study of plant communities.</p>

No abstract