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Radionuclides on glaciers (Radioizotopy na lodowcach)
Movies

Radionuclides on glaciers (Radioizotopy na lodowcach)

Glaciers are not as pristine as we usually see them (or wanna see). Despite the fact they are located in remote places, as humans we keep leaving footprints in these peculiar, cold ecosystems. Nuclear weapon tests, disintegration of satellites or accidents in power plants such as Chernobyl resulted in contaminations from radioactive radioisotopes of caesium … Continue reading

Can small water reservoirs on glaciers be complex? Have a look at cryoconite holes/Czy prosta sadzawka lodowa może być skomplikowana? Spójrz na otwory kriokonitowe
science

Can small water reservoirs on glaciers be complex? Have a look at cryoconite holes/Czy prosta sadzawka lodowa może być skomplikowana? Spójrz na otwory kriokonitowe

At first glance, cryoconite holes are just water-filled reservoirs on glaciers which contain dark sediments on the bottom. This peculiar ecosystem seems to be simple: cyanobacteria and algae are responsible for primary production, then heterotrophic bacteria, ciliates and invertebrates use just produced organic compounds, or tardigrades and rotifers eat producers and bacteria. Usually, cryoconite holes … Continue reading

Body size of terrestrial tardigrades – chasing the white rabbit (W pogoni za białym królikiem – wielkość ciała lądowych niesporczaków)
tardigrade

Body size of terrestrial tardigrades – chasing the white rabbit (W pogoni za białym królikiem – wielkość ciała lądowych niesporczaków)

As a key indicator of adaptation of organisms to too hot or too cold climate, body size has been inspiring naturalists for centuries. Organisms size is also important in understanding longevity, their ability to migrate, predator-prey interactions and host-parasite interactions. A classical ecogeographical explanation for latitudinal and temperature variation in body size is a rule … Continue reading

1st International Conference on ‘Processes and Palaeo-environmental changes in the Arctic: from past to present (PalaeoArc)’
Conferences, Symposia

1st International Conference on ‘Processes and Palaeo-environmental changes in the Arctic: from past to present (PalaeoArc)’

The Faculty of Geographical and Geological Sciences at Adam Mickiewicz University in Poznań is delighted to be hosting the 1st ‚Processes and Palaeo-environmental changes in the Arctic: from past to present’ (PalaeoArc) Conference on May 20th – 24th, 2019. The PalaeoArc is an IASC endorsed network research programme network aiming to further understand past and present environmental changes and processes in the Arctic. It is … Continue reading

Workshop: Effects and Extremes of High Latitude Dust
Conferences, Symposia

Workshop: Effects and Extremes of High Latitude Dust

Where: Agricultural University of Iceland (AUI), Keldnahold, Reykjavík (Iceland) | When: February 13-14, 2019 High latitude dust (HLD), originating from cold high latitudes (≥ 50 °N and ≥ 40 °S) affects the cryosphere, oceans, air quality and safety, and in Europe both the High Arctic and the European mainland. Extreme HLD related events include unexpected, … Continue reading

Thermal „outlier” in the subarctic – animals of geothermally active lava fields (Termalny „outlier” w subarktyce – zwierzęta z aktywnych geotermalnie pól lawowych)
tardigrade

Thermal „outlier” in the subarctic – animals of geothermally active lava fields (Termalny „outlier” w subarktyce – zwierzęta z aktywnych geotermalnie pól lawowych)

Polar and subpolar regions are far more than vast areas of tundra, majestic glaciers or cold, dark blue seas. They are also warm, sometimes very warm, places. The best example is Iceland aged only a bit more than 20 million years, which makes it one of the youngest places in Europe. What is amazing about … Continue reading