4 Works

Calanus InDel genotypes from: No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry

Marvin Choquet, Gauthier Burckard, Stig Skreslet, Galice Hoarau & Janne E. Søreide
In the North Atlantic and the Arctic Ocean, four species of the copepod genus Calanus dominate the zooplankton biomass. Because of their morphological resemblance, knowledge of their respective distribution range has long been biased by misidentification, until the recent use of molecular tools uncovered numerous areas of sympatry. As hybridization between Calanus finmarchicus and C. glacialis has been claimed in the East-Canadian Arctic based on microsatellites, we investigated further the potential for interbreeding in newly...

Community composition of arctic root-associated fungi mirrors host plant phylogeny

S S Botnen, E Thoen, P B Eidesen, A K Krabberød & H Kauserud
The number of plant species regarded as non-mycorrhizal increases at higher latitudes, and several plant species in the High-Arctic Archipelago Svalbard have been reported as non-mycorrhizal. We used the rRNA ITS2 and 18S gene markers to survey which fungi, as well as other micro-eukaryotes, were associated with roots of 31 arctic plant species not usually regarded as mycorrhizal in Svalbard. We assessed to what degree the root-associated fungi showed any host preference and whether the...

Data from: Adaptation potential of the copepod Eurytemora affinis to a future warmer Baltic Sea

Konrad Karlsson & Monika Winder
To predict effects of global change on zooplankton populations, it is important to understand how present species adapt to temperature and how they respond to stressors interacting with temperature. Here we ask if the calanoid copepod Eurytemora affinis from the Baltic Sea can adapt to future climate warming. Populations were sampled at sites with different temperatures. Full sibling families were reared in the lab and used in two common garden experiments (1) populations crossed over...

Root associated fungi in Arctic Glacier Forlands raw sequences

Pernille Bronken Eidesen, Synnøve S. Botnen, Sunil Mundra & Håvard Kauserud
Climate change causes Arctic glaciers to retreat faster, exposing new areas for colonization. Several pioneer plants likely to colonize recent deglaciated, nutrient-poor areas depend on fungal partners for successful establishment. Little is known about general patterns or characteristics of facilitating fungal pioneers and how they vary with regional climate in the Arctic. The High Arctic Archipelago Svalbard represents an excellent study system to address these questions, as glaciers cover ∼60% of the land surface and...

Registration Year

  • 2020

Resource Types

  • Dataset


  • University Centre in Svalbard
  • University of Oslo
  • United Arab Emirates University
  • Nord University
  • Stockholm University