Projects

Post Doc

The influence of Solar cycles on vegetation dynamics of the Quaternary Interglacials

Projects leader: dr. Miglė Sančikaitė

Postdoc researcher: dr. Andrej Spiridonov

Postdoc duration: 2017–2020

The project encompasses the detection, and the statistical testing of the influence on the Solar cycles and the oceanic oscillations on the land and freshwater plant community dynamics. The high-precision accurately dated paleobotanical micro- and macro- fossil data from the eastern Baltic region will be compared with the proxies of the Solar activity (10Be, and 14C) time series using advanced techniques of the spectral analysis, namely continuous wavelet transforms, Lomb-Scargle periodograms and other spectral analysis techniques implemented in the R computational environment. The understanding of the natural climate change mechanisms and their effects on the dynamics of plant communities, as one of the most important parts of the modern biota, is necessary in order to develop realistic climate change models, identifying natural and human influenced climate changes. The former information is needed in order to minimize the human impact on our planet and ensure the sustainable development of the humanity.

Scientific team projects

Holocene multi-proxy environmental reconstructions and climate dynamics: spatial and temporal context

Projects leader: dr. Miglė Sančikaitė

Terms of the project: 2017–2020

Holocene palaeoenvironmental and palaeoclimatic investigations provide an insight into the climatic and environmental history thus giving an opportunity to put contemporary changes into the long chronological perspective. Although an increasing number of derived proxies has provided independent information sources for the further interpretations and generalisations around the North Atlantic realm, the eastward situated territory of the continent has largely remained as “unknown” from the point of view of Holocene palaeo-history as the majority of the old data is insufficient from today’s perspective.

To address this challenge we suggest the high-resolution multi-proxy analysis of lake/peat sequences in order to get high temporal-spatial resolution of Holocene environmental and climatic changes along the Kaliningrad-N Poland-Lithuania-Belarus gradient covering transitional climatic (oceanic-continental) and floristic (boreo-nemoral) zones. Similar territories are more sensitive to climatic and environmental shifts. The project focuses on the combination of high-resolution multi-proxy studies of pollen, diatom, chironomid, plant macrofossil records alongside with geochemical, loss-on-ignition, grain-size, mineral magnetic and 14C measurements of sediment sequences.

The project aims at reconstruction of Holocene environmental change and climatic dynamics along the W-E gradient in the oceanic-continental and boreo-nemoral ecotonal transitional zones through a high temporal resolution multi-proxy study of natural sedimentary archives.

The tasks of the project are a) to explore the development of Holocene vegetation along the W-E transect discussing pattern of local and regional changes; b) based on the identified abiotic and biotic markers to characterize the sedimentary response of lacustrine systems during the periods of climatic shifts of different magnitude; c) for the first time in the region to discuss the temporal and spatial magnitude of Holocene climate variability based on chironomid data; d) based on the newly defined chronological framework of the identified environmental and climatic shifts to correlate this data with regional and global records; and e) to assess the interface between the recorded changes and those identified along the North Atlantic realm.

We suppose that it is essential to improve our knowledge of environmental history and climatic dynamics which could aid in gaining understanding of both regional and global evolution.

The chronology and inter-regional correlation of paleoclimatic events of the Lithuanian Quaternary

Projects leader: dr. Vaida Šeirienė

Terms of the project: 2010–2011

COST

ES0907 Integrating Ice core, Marine and Terrestrial records – 60,000 to 8,000 years ago

Projects leader: dr. Miglė Sančikaitė

Project duration:  2010–2014

Lithuanian–Belarusian projects

Palaeoenvironmental reconstructions and geological correlation of the Pleistocene sediments in Belarus–Lithuania border areas

Projects leader: dr. Vaida Šeirienė

Project duration: 2013–2014

National scientific research programs

Impact of anthropogenic factors upon the expansion of invasive species in the context of Holocene paleoecosystem changes

Projects leader: dr. Miglė Sančikaitė

Terms of the project: 2010–2011

Expansion of palaeovegetation in the context of the postglacial ecosystem dynamics in the eastern Baltic region

Projects leader: dr. Miglė Sančikaitė

Terms of the project: 2012–2014

Other projects

INTIMATE: Ledynų ledo ir jūrinių bei kontinentinių nuosėdų storymių tyrimo duomenų integracija (prieš 60,000-8000 metų) (INTIMATE)

Projects leader: dr. Miglė Sančikaitė

Užsakovas: Lietuvos mokslo taryba

International scientific projects

Baltarusijos ir Lietuvos pasienio rajonų Pleistoceno nuosėdų geologinė koreliacija bei paleoaplinkos rekonstrukcijos

Projects leader: dr. Vaida Šeirienė

Sutartis galioja: 2013.01.01 – 2014.12.31

Funding of researchers

Stažuotė „Trumpalaikių paleoekosistemos pokyčių dinamika poledynmetyje: tendencijos ir raidos prognozė (Stažuotė – RB), 2011 m.

Projects leader: dr. Miglė Sančikaitė

Stažuotojas: R. Binkienė

Funding doctoral visit

Projects leader: dr. Violeta Pukelytė-Baltrūnienė

Funding doctoral visit

Projects leader: dr. Violeta Pukelytė-Baltrūnienė

Parama mokslo renginiui „Paleokraštovaizdžiai nuo Saalio iki Weichselio: pietryčių Lietuva“

Projects leader: dr. Miglė Sančikaitė

Sutarties terminas: 2013.01.31 – 2013.06.30

Laboratories