• Black-legged kittiwakes as messengers of Atlantification in the Arctic 

      Vihtakari, Mikko; Welcker, Jorg; Moe, Børge; Chastel, Olivier; Tartu, Sabrina; Hop, Haakon; Bech, Claus; Descamps, Sébastien; Gabrielsen, Geir W. (Journal article; Peer reviewed, 2018)
      Climate warming is rapidly altering marine ecosystems towards a more temperate state on the European side of the Arctic. However, this “Atlantification” has rarely been confirmed, as long-term datasets on Arctic marine ...
    • Climate change and the increasing impact of polar bears on bird populations 

      Prop, Jouke; Aars, Jon; Bårdsen, Bård-Jørgen; Hanssen, Sveinn Are; Bech, Claus; Bourgeon, Sophie; Fouw, Jimmy de; Gabrielsen, Geir W.; Lang, Johannes; Noreen, Elin; Oudman, Thomas; Sittler, Benoit; stempniewicz, Lech; Tombre, Ingunn; Wolters, Eva; Moe, Børge (Journal article; Peer reviewed, 2015-03-25)
      The Arctic is becoming warmer at a high rate, and contractions in the extent of sea ice are currently changing the habitats of marine top-predators dependent on ice. Polar bears (Ursus maritimus) depend on sea ice for ...
    • Current state of knowledge on biological effects from contaminants on arctic wildlife and fish 

      Dietz, Rune; Letcher, Robert J.; Desforges, Jean-Pierre; Eulaers, Igor; Sonne, Christian; Wilson, Simon; Andersen-Ranberg, Emilie; Basu, Niladri; Barst, Benjamin D.; Bustnes, Jan Ove; Bytingsvik, Jenny; Ciesielski, Tomasz Maciej; Drevnick, Paul E.; Gabrielsen, Geir W.; Haarr, Ane; Hylland, Ketil; Jenssen, Bjørn Munro; Levin, Milton; McKinney, Melissa A.; Nørregaard, Rasmus Dyrmose; Pedersen, Kathrine E.; Provencher, Jennifer; Styrishave, Bjarne; Tartu, Sabrina; Aars, Jon; Ackerman, Joshua T.; Rosing-Asvid, Aqqalu; Barrett, Rob; Bignert, Anders; Born, Erik W; Branigan, Marsha; Braune, Birgit; Bryan, Colleen E; Dam, Maria; Eagles-Smith, Collin A.; Evans, Marlene; Evans, Thomas J.; Fisk, Aaron T.; Gamberg, Mary; Gustavson, Kim; Hartman, C. Alex; Helander, Björn; Herzog, Mark P.; Hoekstra, Paul F.; Houde, Magali; Hoydal, Katrin; Jackson, Allyson K.; Kucklick, John; Lie, Elisabeth; Loseto, Lisa; Mallory, Mark L.; Miljeteig, Cecilie; Mosbech, Anders; Muir, Derek C.G.; Nielsen, Sanna Túni; Peacock, Elizabeth; Pedro, Sara; Peterson, Sarah H.; Polder, Anuschka; Rigét, Frank F.; Roach, Pat; Saunes, Halvor; Sinding, Mikkel Holger Strander; Skåre, Janneche Utne; Søndergaard, Jens; Stenson, Garry; Stern, Gary; Treu, Gabriele; Schuur, Stacy S.; Víkingsson, Gísli Arnór (Journal article; Peer reviewed, 2019)
      Since the last Arctic Monitoring and Assessment Programme (AMAP) effort to review biological effects of the exposure to organohalogen compounds (OHCs) in Arctic biota, there has been a considerable number of new Arctic ...
    • Differential reproductive responses to stress reveal the role of life-history strategies within a species 

      Schultner, Jannik; Kitaysky, Alexander S.; Gabrielsen, Geir W.; Hatch, Scott; Bech, Claus (Journal article; Peer reviewed, 2013)
      Life-history strategies describe that ‘slow’- in contrast to ‘fast’-living species allocate resources cautiously towards reproduction to enhance survival. Recent evidence suggests that variation in strategies exists not ...
    • Do levels of per- and polyfluorinated alkylated substances (PFASs) in snow bunting eggs increase with proximity to airports in Svalbard? 

      Kvernland, Pernille (Master thesis, 2017)
      Per- and polyfluorinated alkylated substances (PFASs) are used in a variety of industrial and consumer applications, including polymer materials and in aqueous fire fighting foam (AFFFs). Research over the last 20 years ...
    • Exposure to oxychlordane is associated with shorter telomeres in arctic breeding kittiwakes 

      Blévin, Pierre; Angelier, Frédéric; Tartu, Sabrina; Ruault, Stéphanie; Bustamante, Paco; Herzke, Dorte; Moe, Børge; Bech, Claus; Gabrielsen, Geir W.; Bustnes, Jan Ove; Chastel, Olivier (Journal article; Peer reviewed, 2016)
      Telomeres are DNA-protein complexes located at the end of chromosomes, which play an important role in maintaining the genomic integrity. Telomeres shorten at each cell division and previous studies have shown that telomere ...
    • Homology modeling to screen for potential binding of contaminants to thyroid hormone receptor and transthyretin in glaucous gull (Larus hyperboreus) and herring gull (Larus argentatus) 

      Mortensen, Åse-Karen; Mæhre, Silje; Kristiansen, kurt; Heimstad, Eldbjørg Sofie; Gabrielsen, Geir W.; Jenssen, Bjørn Munro; Sylte, Ingebrigt (Journal article; Peer reviewed, 2020)
      Thyroid hormone disrupting chemicals (THDCs) are of major concern in ecotoxicology. With the increased number of emerging chemicals on the market there is a need to screen for potential THDCs in a cost-efficient way, and ...
    • Mercury exposure, stress and prolactin secretion in an Arctic seabird: an experimental study 

      Tartu, Sabrina; Bustamante, Paco; Angelier, Frédéric; Lendvai, Adam Z.; Moe, Børge; Blévin, Pierre; Bech, Claus; Gabrielsen, Geir W.; Bustnes, Jan Ove; Chastel, Olivier (Peer reviewed; Journal article, 2016)
      Life-history theory predicts that long-lived organisms should reduce parental effort under inclement environmental conditions in order to favour long-term survival. Seabirds are long-lived top predators often exposed to ...
    • Methylmercury biomagnification in an Arctic pelagic food web 

      Ruus, Anders; Øverjordet, Ida Beathe; Braaten, Hans Fredrik Veiteberg; Evenset, Anita; Christensen, Guttorm N.; Heimstad, Eldbjørg Sofie; Gabrielsen, Geir W.; Borgå, Katrine (Journal article; Peer reviewed, 2015)
      Mercury (Hg) is a toxic element that enters the biosphere from natural and anthropogenic sources, and emitted gaseous Hg enters the Arctic from lower latitudes by long-range transport. In aquatic systems, anoxic conditions ...
    • Persistent organic pollutants and organophosphate esters in feathers and blood plasma of adult kittiwakes (Rissa tridactyla) from Svalbard – associations with body condition and thyroid hormones 

      Svendsen, Niels Borup; Herzke, Dorte; Harju, Mikael; Bech, Claus; Gabrielsen, Geir W.; Jaspers, Veerle (Journal article; Peer reviewed, 2018)
      Polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), organochlorine pesticides (OCPs) and organophosphate esters (OPEs) were assessed in blood plasma and feathers of 19 adult black-legged kittiwakes ...
    • Resource allocation under stress: mechanisms and strategies in a long-lived bird 

      Schultner, Jannik (Doktoravhandlinger ved NTNU, 1503-8181; 2014:25, Doctoral thesis, 2014)
      The marine environment is currently undergoing critical modification in the wake of global climate change. Marine animals are, consequently, expected to experience increasing periods of nutritionally stressful conditions. ...
    • Screening new PFAS compounds 2018 

      Hanssen, Linda; Herzke, Dorte; Nikiforov, Vladimir; Moe, Børge; Nygård, Torgeir; van Dijk, Jiska Joanneke; Gabrielsen, Geir W.; Fuglei, Eva; Yeung, Leo; Vogelsang, Christian; Carlsson, Pernilla Marianne (NILU rapport;, Research report, 2019)
      This screening project has focused on the occurrence of conventional andemerging PFASs in terrestrial and marine environments, including the Arctic. Conventional PFASs were found to be wide-spread in the environment and ...
    • Snow buntings (Plectrophenax nivealis) as bio-indicators for exposure differences to legacy and emerging persistent organic pollutants from the Arctic terrestrial environment on Svalbard 

      Warner, Nicholas Alexander; Sagerup, Kjetil; Kristoffersen, Siv; Herzke, Dorte; Gabrielsen, Geir W.; Jenssen, Bjørn Munro (Journal article; Peer reviewed, 2019)
      Eggs of snow buntings (Plectrophenax nivealis) were applied as a bio-indicator to examine differences in exposure to legacy persistent organic pollutants (POPs) and perflouroalkyl subtances (PFAS) from the terrestrial ...
    • Survival rate and breeding outputs in a high Arctic seabird exposed to legacy persistent organic pollutants and mercury 

      Goutte, Aurélie; Barbraud, Christophe; Herzke, Dorte; Bustamante, Paco; Angelier, Frédéric; Tartu, Sabrina; Clement-Chastel, Celine; Moe, Børge; Bech, Claus; Gabrielsen, Geir W.; Bustnes, Jan Ove; Chastel, Olivier (Journal article; Peer reviewed, 2015)
      Chronic exposure to pollutants may represent a threat for wildlife.We tested whether adult survival rate, breeding probability and breeding success the year of sampling and the following year were affected by blood levels ...
    • Temporal variation in circulating concentrations of organochlorine pollutants in a pelagic seabird breeding in the high arctic 

      Bustnes, Jan Ove; Bårdsen, Bård-Jørgen; Moe, Børge; Herzke, Dorte; Hanssen, Sveinn Are; Sagerup, Kjetil; Bech, Claus; Nordstad, Tore; Chastel, Olivier; Tartu, Sabrina; Gabrielsen, Geir W. (Journal article; Peer reviewed, 2017)
      The present study explored short-term temporal variations in circulating concentrations of 3 legacy organochlorines with different physicochemical properties (polychlorinated biphenyl 153 [PCB-153], p,p0-dichlorodiphenyl ...
    • The stress of being contaminated? Adrenocortical function and reproduction in relation to persistent organic pollutants in female black legged kittiwakes 

      Tartu, Sabrina; Angelier, Frédéric; Herzke, Dorte; Moe, Børge; Bech, Claus; Gabrielsen, Geir W.; Bustnes, Jan Ove; Chastel, Olivier (Journal article; Peer reviewed, 2014)
      High levels of environmental pollutants such as persistent organic pollutants (POPs) including PCB and DDT have been found in the Arctic and many of those pollutants may impair reproduction through endocrine disruption. ...
    • Thyroid hormones correlate with basal metabolic rate but not field metabolic rate in a wild bird species 

      Welcker, Jorg Otto; Chastel, Olivier; Gabrielsen, Geir W.; Guillaumin, Jerome; Kitaysky, Alexander S.; Speakman, John R.; Tremblay, Yann; Bech, Claus (Journal article; Peer reviewed, 2013)
      Thyroid hormones (TH) are known to stimulate in vitro oxygen consumption of tissues in mammals and birds. Hence, in many laboratory studies a positive relationship between TH concentrations and basal metabolic rate (BMR) ...