Blar i forfatter "Kjeldsen, Kristian K."

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    • A 2-million-year-old ecosystem in Greenland uncovered by environmental DNA 

      Kjær, Kurt H.; Winther Pedersen, Mikkel; De Sanctis, Bianca; De Cahsan, Binia; Korneliussen, Thorfinn S.; Michelsen, Christian S.; Sand, Karina K.; Jelavić, Stanislav; Ruter, Anthony H.; Schmidt, Astrid M. A.; Kjeldsen, Kristian K.; Tesakov, Alexey S.; Snowball, Ian; Gosse, John C.; Alsos, Inger Greve; Wang, Yucheng; Dockter, Christoph; Rasmussen, Magnus; Jørgensen, Morten E.; Skadhauge, Birgitte; Prohaska, Ana; Kristensen, Jeppe Å.; Bjerager, Morten; Allentoft, Morten E.; Coissac, Eric; Rouillard, Alexandra; Simakova, Alexandra; Fernandez-Guerra, Antonio; Bowler, Chris; Macias-Fauria, Marc; Vinner, Lasse; Welch, John J.; Hidy, Alan J.; Sikora, Martin; Collins, Matthew J.; Durbin, Richard; Larsen, Nicolaj K.; Willerslev, Eske (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-07)
      Late Pliocene and Early Pleistocene epochs 3.6 to 0.8 million years ago had climates resembling those forecasted under future warming. Palaeoclimatic records show strong polar amplification with mean annual temperatures of 11–19 °C above contemporary values. The biological communities inhabiting the Arctic during this time remain poorly known because fossils are rare. Here we report an ancient ...

    • Glacier response to the Little Ice Age during the Neoglacial cooling in Greenland 

      Kjær, Kurt H.; Bjørk, Anders A.; Kjeldsen, Kristian K.; Hansen, Eric S.; Andresen, Camilla S.; Siggaard-Andersen, Marie-Louise; Khan, Shfaqat Abbas; Søndergaard, Anne Sofie; Colgan, William; Schomacker, Anders; Woodroffe, Sarah; Funder, Svend; Rouillard, Alexandra; Jensen, Jens Fog; Larsen, Nicolaj K. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-04)
      In the Northern Hemisphere, an insolation driven Early to Middle Holocene Thermal Maximum was followed by a Neoglacial cooling that culminated during the Little Ice Age (LIA). Here, we review the glacier response to this Neoglacial cooling in Greenland. Changes in the ice margins of outlet glaciers from the Greenland Ice Sheet as well as local glaciers and ice caps are synthesized Greenland-wide. ...