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Department of Arctic and Marine Biology jaa039@post.uit.no Tromsø

Jon Aars

  • 1
    Marwan Naciri, Jon Aars, Magnus Andersen, Andrew E. Derocher, Øystein Wiig, Sarah Cubaynes :
    A capture–recapture framework for combining biologging data with physical captures to decompose and estimate demographic rates: Simulations across life cycles and application to polar bears
    Methods in Ecology and Evolution 26. December 2025 DOI / ARKIV
  • 1
    Marwan Naciri, Jon Aars, Magnus Andersen, Marie-Anne Blanchet, Andrew E. Derocher, Marlene Gamelon et al.:
    Offspring number, size, and survival: State-dependent optimization of litter size in a long-lived capital breeder
    Ecosphere 2025 DOI / ARKIV
  • 1
    Julian Carolan, Martin Jakubec, Neubi F. Xavier, Adam Pestana Motala, Ersilia Bifulco, Jon Aars et al.:
    Anti-icing properties of polar bear fur
    Science Advances 2025 DOI / ARKIV
  • 1
    Louise C. Archer, B.J. Kirschhoffer, Jon Aars, Danielle K. James, Katharina M. Miller, Nicholas W. Pilfold et al.:
    Monitoring phenology and behavior of polar bears at den emergence using cameras and satellite telemetry
    Journal of Wildlife Management 2025 DOI / ARKIV
  • 1
    Jouke Prop, Jeffrey M. Black, Jon Aars, Thomas Oudman, Eva Wolters, Børge Moe :
    Land-based foraging by polar bears reveals sexual conflict outside mating season
    Scientific Reports 2024 DOI / ARKIV
  • 1
    Kristin L. Laidre, Jasmine Ware, Marie Zahn, Peter Hegelund, Jon Aars :
    First recorded ice entrapment of a beluga whale (Delphinapterus leucas) in east Greenland
    Polar Research 2024 DOI / ARKIV
  • 1
    Robert C. Lacy, Kit M. Kovacs, Christian Lydersen, Jon Aars :
    Linking PVA models into metamodels to explore impacts of declining sea ice on ice-dependent species in the Arctic: the ringed seal, bearded seal, polar bear complex
    Frontiers in Conservation Science 2024 DOI / ARKIV
  • 1
    Benjamin Merkel, Jon Aars, Kristin L. Laidre, James W. Fox :
    Light-level geolocation as a tool to monitor polar bear (Ursus maritimus) denning ecology: a case study
    Animal Biotelemetry 2023 DOI / ARKIV
  • 1
    Kristin L. Laidre, George M. Durner, Nicholas J. Lunn, Eric V. Regehr, Todd C. Atwood, Karyn D. Rode et al.:
    The role of satellite telemetry data in 21st century conservation of polar bears (Ursus maritimus).
    Frontiers in Marine Science 2022 DOI / ARKIV / ARKIV
  • 1
    Rune Dietz, Robert J. Letcher, Jon Aars, Magnus Andersen, Andrei Boltunov, Erik W. Born et al.:
    A risk assessment review of mercury exposure in Arctic marine and terrestrial mammals
    Science of the Total Environment 2022 DOI / ARKIV / ARKIV / ARKIV / ARKIV
  • 1
    Kirsteen M. MacKenzie, Christian Lydersen, Tore Haug, Heli Anna Irmeli Routti, Jon Aars, Clare Margaret Andvik et al.:
    Niches of marine mammals in the European Arctic
    Ecological Indicators 2022 DOI / ARKIV / ARKIV / ARKIV / ARKIV
  • 1
    Anna Lippold, Mikael Harju, Jon Aars, Pierre Blévin, Jenny Bytingsvik, Geir W. Gabrielsen et al.:
    Occurrence of emerging brominated flame retardants and organophosphate esters in marine wildlife from the Norwegian Arctic
    Environmental Pollution (1987) 2022 DOI / ARKIV / ARKIV / ARKIV
  • 1
    Charmain D. Hamilton, Christian Lydersen, Jon Aars, Mario Acquarone, Todd Atwood, Alastair Baylis et al.:
    Marine mammal hotspots across the circumpolar Arctic
    Diversity and Distributions: A Journal of Conservation Biogeography 2022 DOI / ARKIV / ARKIV / ARKIV
  • 1
    Kristin L. Laidre, Megan A. Supple, Erik W. Born, Eric V. Regehr, Øystein Wiig, Fernando Ugarte et al.:
    Glacial ice supports a distinct and undocumented polar bear subpopulation persisting in late 21st-century sea-ice conditions
    Science 2022 DOI / ARKIV
  • 1
    Eivind Flittie Kleiven, Pedro Guilherme Antunes Lopes Da Silva Nicolau, Sigrunn Holbek Sørbye, Jon Aars, Nigel Yoccoz, Rolf Anker Ims :
    Using camera traps to monitor cyclic vole populations
    Remote Sensing in Ecology and Conservation 2022 DOI / ARKIV
  • 1
    Marwan Naciri, Jon Aars, Marie-Anne Blanchet, Olivier Gimenez, Sarah Cubaynes :
    Reproductive senescence in polar bears in a variable environment
    Frontiers in Ecology and Evolution 2022 DOI / ARKIV
  • 1
    Benjamin Merkel, Jon Aars :
    Shifting polar bear Ursus maritimus denning habitat availability in the European Arctic
    Polar Biology 2022 DOI / ARKIV
  • 1
    Anna Lippold, Andrei Boltunov, Jon Aars, Magnus Andersen, Marie-Anne Blanchet, Rune Dietz et al.:
    Spatial variation in mercury concentrations in polar bear (Ursus maritimus) hair from the Norwegian and Russian Arctic
    Science of the Total Environment 2022 DOI / ARKIV
  • 1
    Clément Brun, Marie-Anne Blanchet, Rolf A. Ims, Jon Aars :
    Stability of space use in svalbard coastal female polar bears: Intra-individual variability and influence of kinship
    Polar Research 2021 DOI / ARKIV
  • 1
    Lech Stempniewicz, Izabela Kulaszewicz, Jon Aars :
    Yes, they can: polar bears Ursus maritimus successfully hunt Svalbard reindeer Rangifer tarandus platyrhynchus
    Polar Biology 2021 DOI / ARKIV
  • 1
    Charmain Danielle Hamilton, Christian Lydersen, Jon Aars, Martin Biuw, Andrei Boltunov, Erik W. Born et al.:
    Marine mammal hotspots in the Greenland and Barents Seas
    Marine Ecology Progress Series 2021 DOI / ARKIV / ARKIV / ARKIV
  • 1
    Simo Maduna, Jon Aars, Ida Fløystad, Cornelya Klutsch, Eve Marie Louise Zeyl Fiskebeck, Øystein Wiig et al.:
    Sea ice reduction drives genetic differentiation among Barents Sea polar bears
    Proceedings of the Royal Society of London. Biological Sciences 08. September 2021 DOI / ARKIV / ARKIV / ARKIV / ARKIV
  • 1
    Sarah Cubaynes, Jon Aars, Nigel Yoccoz, Roger Pradel, Øystein Wiig, Rolf Anker Ims et al.:
    Modeling the demography of species providing extended parental care: A capture–recapture multievent model with a case study on polar bears (Ursus maritimus)
    Ecology and Evolution 2021 DOI / ARKIV / ARKIV
  • 1
    Heli Anna Irmeli Routti, Mikael Harju, Katharina Lühmann, Jon Aars, Amalie Ask, Anders Goksøyr et al.:
    Concentrations and endocrine disruptive potential of phthalates in marine mammals from the Norwegian Arctic
    Environment International 2021 DOI / ARKIV / ARKIV
  • 1
    Benjamin Merkel, Jon Aars, Glen E. Liston :
    Modelling polar bear maternity den habitat in east svalbard
    Polar Research 2020 DOI / ARKIV
  • 1
    Anna Lippold, Jon Aars, Magnus Andersen, Aurore Aubail, Andrew E. Derocher, Rune Dietz et al.:
    Two decades of mercury concentrations in Barents Sea polar bears (Ursus maritimus) in relation to dietary carbon, sulfur, and nitrogen
    Environmental Science and Technology 2020 DOI / ARKIV
  • 1
    Marie-Anne Blanchet, Jon Aars, Magnus Andersen, Heli Routti :
    Space-use strategy affects energy requirements in Barents Sea polar bears
    Marine Ecology Progress Series 2020 DOI / ARKIV
  • 1
    Pauline M. Herst, Jon Aars, Charles Joly Beauparlant, Antoine Bodein, Mathieu Dalvai, Dominic Gagné et al.:
    Adipose Tissue Transcriptome Is Related to Pollutant Exposure in Polar Bear Mother-Cub Pairs from Svalbard, Norway
    Environmental Science and Technology 2020 DOI / ARKIV
  • 1
    Pierre Blévin, Jon Aars, Magnus Andersen, Marie-Anne Blanchet, Linda Hanssen, Dorte Herzke et al.:
    Pelagic vs coastal - Key drivers of pollutant levels in Barents Sea polar bears with contrasted space-use strategies
    Environmental Science and Technology 2019 DOI / ARKIV / ARKIV
  • 1
    Karen Lone, Charmain D. Hamilton, Jon Aars, Christian Lydersen, Kit M. Kovacs :
    Summer habitat selection by ringed seals (Pusa hispida) in the drifting sea ice of the northern barents sea
    Polar Research 2019 DOI / ARKIV
  • 1
    Anna Lippold, Sophie Bourgeon, Jon Aars, Magnus Andersen, Anuschka Polder, Jan Ludvig Lyche et al.:
    Temporal trends of persistent organic pollutants in Barents Sea polar bears (Ursus maritimus) in relation to changes in feeding habits and body condition
    Environmental Science and Technology 2019 DOI / ARKIV / ARKIV
  • 1
    Rune Dietz, Robert J Letcher, Jean-Pierre Desforges, Igor Eulaers, Christian Sonne, Simon Wilson et al.:
    Current state of knowledge on biological effects from contaminants on arctic wildlife and fish
    Science of the Total Environment 2019 DOI / ARKIV / ARKIV / ARKIV / ARKIV / ARKIV / ARKIV
  • 1
    Dorinda Marie Folio, Jon Aars, Olivier Gimenez, Andrew E. Derocher, Øystein Wiig, Sarah Cubaynes :
    How many cubs can a mum nurse? Maternal age and size influence litter size in polar bears
    Biology Letters 2019 DOI / ARKIV
  • 1
    Tomasz Maciej Ciesielski, Christian Sonne, Ingunn Ormbostad, Jon Aars, Elisabeth Lie, Jenny Bytingsvik et al.:
    Effects of biometrics, location and persistent organic pollutants on blood clinical-chemical parameters in polar bears (Ursus maritimus) from Svalbard, Norway
    Environmental Research 2018 DOI / ARKIV / ARKIV
  • 1
    Thea Bechshoft, Andrew E. Derocher, Michelle Viengkone, Heli Anna Irmeli Routti, Jon Aars, Robert J. Letcher et al.:
    On the integration of ecological and physiological variables in polar bear toxicology research: a systematic review
    Environmental Reviews 2018 DOI / ARKIV
  • 1
    Sabrina Tartu, Jon Aars, Magnus Andersen, Anuschka Polder, Sophie Bourgeon, Benjamin Merkel et al.:
    Choose your poison – Space-use strategy influences pollutant exposure in Barents Sea polar bears
    Environmental Science and Technology 2018 DOI / ARKIV
  • 1
    Karen Lone, Benjamin Merkel, Christian Lydersen, Kit M. Kovacs, Jon Aars :
    Sea ice resource selection models for polar bears in the Barents Sea subpopulation
    Ecography 2018 DOI / ARKIV
  • 1
    Øystein Wiig, P. Henrichsen, T. Sjøvold, E.W. Born, K.L. Laidre, R. Dietz et al.:
    Variation in non-metrical skull traits (1830-2013) across East Greenland and adjacent polar bear (Ursus maritimus) subpopulations.
    Polar Biology 2018 DOI / ARKIV
  • Jon Aars, Magnus Andersen, Marie-Anne Blanchet, Gunn Sissel Jaklin :
    Polar bears and snowmobile traffic
    Norsk Polarinstitutt 2026 ARKIV
  • Ingjerd Sunde Krogseth, Knut Breivik, Sabine Eckhardt, Heli Anna Irmeli Routti, Igor Eulaers, Jørn Dietze et al.:
    Investigating climate change impacts on contaminant exposure in the Arctic using the Nested Exposure Model
    03. February 2026 ARKIV
  • maud van essche, Anders Goksøyr, Audun H. Rikardsen, cathy debier, demetri spyropoulos, Jon Aars et al.:
    Marine mammals and polar bears in a petri dish: Cell isolation, differentiation, and exposure experiments for pollution impact assessment
    28. August 2025 ARKIV
  • Jon Aars, Heli Anna Irmeli Routti :
    Research in Norway: 2021-2024
    2024 ARKIV
  • Kirsteen M. MacKenzie, Christian Lydersen, Tore Haug, Heli Anna Irmeli Routti, Jon Aars, Clare Margaret Andvik et al.:
    Stable isotope (C&N) and dietary fatty acid compositions (>1%) for marine mammals in the European Arctic
    Norwegian Polar Data Centre 2022 ARKIV
  • Ingjerd Sunde Krogseth, Heli Anna Irmeli Routti, Igor Eulaers, Knut Breivik, Jon Aars, Sabine Eckhardt et al.:
    Development, evaluation, and application of a mechanistic bioaccumulation model for organic contaminants in Svalbard polar bears
    2022 ARKIV
  • Elena Eriksen, Anatoly A. Filin, Jon Aars, Espen Bagøien, Alexandr Benzik, Bjarte Bogstad et al.:
    Working Group on the Integrated Assessments of the Barents Sea (WGIBAR)
    International Council for the Exploration of the Sea (ICES) 2022 DOI / ARKIV
  • Lech stempniewicz, Izabela Kulaszewicz, Jon Aars :
    Correction to: Yes, they can: polar bears Ursus maritimus successfully hunt Svalbard reindeer Rangifer tarandus platyrhynchus (Polar Biology, (2021), 44, 11, (2199-2206), 10.1007/s00300-021-02954-w)
    Polar Biology 2021 DOI / ARKIV
  • Anders Jelmert, Anne Britt Sandø, Anne Kirstine Højholt Frie, Bjarte Bogstad, Bjørn Einar Grøsvik, Elena Eriksen et al.:
    Status for miljøet i Barentshavet: Rapport fra Overvåkingsgruppen 2020
    Havforskningsinstituttet 2020 ARKIV / FULLTEKST
  • Heli Anna Irmeli Routti, Jon Aars, Todd C. Atwood, Bjørn Munro Jenssen, Melissa A. McKinney, Robert J Letcher et al.:
    Contaminants in polar bears from the circumpolar Arctic. State of knowledge and further recommendations fro monitoring and research - Action #42 of the Circumpolar Action Plan for polar bear conservation
    Norsk Polarinstitutt 2019 ARKIV
  • Jon Aars, Tiago A. Marques, Karen Lone, Magnus Andersen, Øystein Wiig, Ida Fløystad et al.:
    Corrigendum to: The number and distribution of polar bears in the western Barents Sea
    Polar Research 2018 DOI / ARKIV
  • Anna Lippold, Sophie Bourgeon, Jon Aars, Magnus Andersen, Anuschka Polder, Vidar Torget et al.:
    Temporal trends of persistent organic pollutants in Svalbard polar bears (Ursus maritimus) in relation to climate-associated changes in feeding habits.
    2018 ARKIV

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