• 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 ...
    • Diet and metabolic state are the main factors determining concentrations of perfluoroalkyl substances in female polar bears from Svalbard 

      Tartu, Sabrina; Bourgeon, Sophie; Aars, Jon; Andersen, Magnus; Lone, Karen; Jenssen, Bjørn Munro; Polder, Anuschka; Thiemann, Gregory W.; Torget, Vidar; Welker, Jeffrey Martin; Routti, Heli Anna Irmeli (Journal article; Peer reviewed, 2017)
      Perfluoroalkyl substances (PFASs) have been detected in organisms worldwide, including Polar Regions. The polar bear (Ursus maritimus), the top predator of Arctic marine ecosystems, accumulates high concentrations of PFASs, ...
    • Effects of biometrics, location and persistent organic pollutants on blood clinical-chemical parameters in polar bears (Ursus maritimus) from Svalbard, Norway 

      Ciesielski, Tomasz Maciej; Sonne, Christian; Ormbostad, Ingunn; Aars, Jon; Lie, Elisabeth; Bytingsvik, Jenny; Jenssen, Bjørn Munro (Journal article; Peer reviewed, 2018)
      In the present study, blood clinical-chemical parameters (BCCPs) were analysed in 20 female and 18 male Svalbard polar bears (Ursus maritimus) captured in spring 2007. The aim was to study how age, body condition (BC), ...
    • Isbjørnens effekt på fugl i et arktisk klima i endring - Sluttrapport for Svalbards miljøvernfond 

      Moe, Børge; Prop, Jouke; Aars, Jon; Bårdsen, Bård-Jørgen; Hanssen, Sveinn Are; Bech, Claus; Bourgeon, Sophie; Fouw, Jimmy de; Gabrielsen, Geir Wing; Lang, Johannes; Noreen, Elin; Oudman, Thomas; Sittler, Benoit; Stempniewicz, Lech; Tombre, Ingunn; Wolters, Eva (NINA Rapport;1163, Research report, 2015)
      Arktis blir stadig varmere og utbredelsen av havis blir mindre. Det forandrer leveområdet til de mange artene som er avhengige av havis. Isbjørnen er avhengig av havis for å jakte på sel, og økende lengde på den isfrie ...
    • On the integration of ecological and physiological variables in polar bear toxicology research: a systematic review 

      Bechshoft, Thea; Derocher, Andrew E.; Viengkone, Michelle; Routti, Heli Anna Irmeli; Aars, Jon; Letcher, Robert J.; Dietz, Rune; Sonne, Christian; Jenssen, Bjørn Munro; Richardson, Evan; Lunn, Nicholas J. (Journal article; Peer reviewed, 2018)
      Ecotoxicology evolved as a scientific field as awareness of the unintended effects of anthropogenic pollutants in biota increased. Polar bears (Ursus maritimus) are often the focus of Arctic contaminant exposure studies ...
    • Potentiation of ecological factors on the disruption of thyroid hormones by organo-halogenated contaminants in female polar bears (Ursus maritimus) from the Barents Sea. 

      Bourgeon, Sophie; Riemer, Astrid Kolind; Tartu, Sabrina; Aars, Jon; Polder, Anuschka; Jenssen, Bjørn Munro; Routti, Heli Anna Irmeli (Journal article; Peer reviewed, 2017)
      As apex predators, polar bears (Ursus maritimus) are among the most heavily polluted organisms in the Arctic. In addition to this anthropogenic stressor, climate warming has been shown to negatively affect their body ...
    • Relationships between POPs, biometrics and circulating steroids in male polar bears (Ursus maritimus) from Svalbard 

      Ciesielski, Tomasz Maciej; Hansen, Ingunn Tjelta; Bytingsvik, Jenny; Hansen, Martin; Lie, Elisabeth; Aars, Jon; Jenssen, Bjørn Munro; Styrishave, Bjarne (Journal article; Peer reviewed, 2017)
      The aim of this study was to determine the effects of persistent organic pollutants (POPs) and biometric variables on circulating levels of steroid hormones (androgens, estrogens and progestagens) in male polar bears (Ursus ...
    • Temporal trends of persistent organic pollutants in Barents Sea polar bears (Ursus maritimus) in relation to changes in feeding habits and body condition 

      Lippold, Anna; Bourgeon, Sophie; Aars, Jon; Andersen, Magnus; Polder, Anuschka; Lyche, Jan Ludvig; Bytingsvik, Jenny; Jenssen, Bjørn Munro; Derocher, Andrew E.; Welker, Jeffrey Martin; Routti, Heli (Journal article; Peer reviewed, 2018)
      Temporal trends of persistent organic pollutants (POPs: PCBs, OH-PCBs, p,p′-DDE, HCB, β-HCH, oxychlordane, BDE-47, and 153) in relation to changes in feeding habits and body condition in adult female polar bears (Ursus ...