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Transfer of Nutrients and Toxines to the glacial ecosystem by sea-birds: a pilot study (TNT )

The biological (mainly microbial) processes on glacier and ice sheet surfaces were recognized as a significant contributor to the nutrient cycling or toxine accumulation in the High Arctic ecosystem (Stibal et al., 2012). Most of the studies on glacial ecology from Svalbard cover however just few localities easily accessible from the main research

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Project date

Starts
2014-03-01

Ends
2015-02-27

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Project type

Discipline

Project Keywords

  • biosphere / ecological dynamics / ecosystem functions
  • cryosphere / glaciers/ice sheets / glaciers
  • biosphere / ecological dynamics / ecotoxicology
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Fieldwork information

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Type Period From To Coordinates Station Location
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Summary

The biological (mainly microbial) processes on glacier and ice sheet surfaces were recognized as a significant contributor to the nutrient cycling or toxine accumulation in the High Arctic ecosystem (Stibal et al., 2012). Most of the studies on glacial ecology from Svalbard cover however just few localities easily accessible from the main research facilities (Ny Alesund, Longyearbyen). A study from Aldegondabreen (Zarsky et al., 2013) describes a glacial locality significantly influenced by nutrients originating from breeding ativity of sea-birds. The glacial surface under higher nutrient input showed a distinct difference in community composition and we have good support for considerably higher magnitude of biomass and sediment retention. There is however lack of information about frequency of sea-bird breeding sites on remote glacial localities (as e.g. the nunataks of Lomonosovfonna), which would allow us to judge whether such cases are exceptional or yet not frequent but emerging on a regular basis (NPI online map resources 2014). This gap in knowledge could be accessed simply by a small group undertaking with skis (low environmental impact) and high performance spective for a survey of nesting sites on selected localities along the north-south transect of Lomonosovfonna. References NPI online map resources, 2014. http://svalbardkartet.npolar.no/Viewer.html?Viewer

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