Browsing Museene by Author "Aars, Jon"

Now showing items 1-7 of 7

  • Genetic diversity of historical Atlantic walruses (Odobenus rosmarus rosmarus) from Bjørnøya and Håøya (Tusenøyane), Svalbard, Norway 
    Lindqvist, Charlotte; Roy, Tilottama; Lydersen, Christian; Kovacs, Kit M; Aars, Jon; Wiig, Øystein; Bachmann, Lutz (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
    Background The population size of Atlantic walruses (Odobenus rosmarus rosmarus) is depleted relative to historical abundance levels. In Svalbard, centuries of over-exploitation brought the walrus herds to ...
  • Marine mammal hotspots across the circumpolar Arctic 
    Hamilton, Charmain D.; Lydersen, Christian; Aars, Jon; Acquarone, Mario; Atwood, Todd; Baylis, Alastair; Biuw, Martin; Boltunov, Andrei N.; Born, Erik W.; Boveng, Peter; Brown, Tanya M.; Cameron, Michael; Citta, John; Crawford, Justin; Dietz, Rune; Elias, Jim; Ferguson, Steven H.; Fisk, Aaron; Folkow, Lars; Frost, Kathryn J.; Glazov, Dmitri M.; Granquist, Sandra M.; Gryba, Rowenna; Harwood, Lois; Haug, Tore; Heide-Jørgensen, Mads Peter; Hussey, Nigel E.; Kalinek, Jimmy; Laidre, Kristin L.; Litovka, Dennis I.; London, Josh M.; Loseto, Lisa L.; MacPhee, Shannon; Marcoux, Marianne; Matthews, Cory J. D.; Nilssen, Kjell Tormod; Nordøy, Erling Sverre; O’Corry-Crowe, Greg; Øien, Nils Inge; Olsen, Morten Tange; Quakenbush, Lori; Rosing-Asvid, Aqqalu; Semenova, Varvara; Shelden, Kim E. W.; Shpak, Olga V.; Stenson, Garry; Storrie, Luke; Sveegaard, Signe; Teilmann, Jonas; Ugarte, Fernando; Von Duyke, Andrew L.; Watt, Cortney; Wiig, Øystein; Wilson, Ryan R.; Yurkowski, David J.; Kovacs, Kit M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Aim: Identify hotspots and areas of high species richness for Arctic marine mammals. Location: Circumpolar Arctic. Methods: A total of 2115 biologging devices were deployed on marine mammals from 13 species in the Arctic ...
  • Marine mammal hotspots in the Greenland and Barents Seas 
    Hamilton, Charmain Danielle; Lydersen, Christian; Aars, Jon; Biuw, Martin; Boltunov, Andrei; Born, Erik W.; Dietz, Rune; Folkow, Lars; Glazov, Dmitry M.; Haug, Tore; Heide-Jørgensen, Mads-Peter; Kettemer, Lisa Elena; Laidre, Kristin L.; Øien, Nils Inge; Nordøy, Erling Sverre; Rikardsen, Audun H.; Rosing-Asvid, Aqqalu; Semenova, Varvara; Shpak, Olga V.; Sveegaard, Signe; Ugarte, Fernando; Wiig, Øystein; Kovacs, Kit M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Environmental change and increasing levels of human activity are threats to marine mammals in the Arctic. Identifying marine mammal hotspots and areas of high species richness are essential to help guide management and ...
  • Modeling the demography of species providing extended parental care: A capture–recapture multievent model with a case study on polar bears (Ursus maritimus) 
    Cubaynes, Sarah; Aars, Jon; Yoccoz, Nigel; Pradel, Roger; Wiig, Øystein; Ims, Rolf Anker; Gimenez, Olivier (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    1. In species providing extended parental care, one or both parents care for altricial young over a period including more than one breeding season. We expect large parental investment and long-term dependency within family ...
  • The number and distribution of polar bears in the western Barents Sea area. 
    Aars, Jon; Marques, T.A.; Lone, K.; Andersen, M.; Wiig, Øystein; Fløystad, I.M.B.; Hagen, S.B.; Buckland, S.T. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Polar bears have experienced a rapid loss of sea-ice habitat in the Barents Sea. Monitoring this subpopulation focuses on the effects on polar bear demography. In August 2015, we conducted a survey in the Norwegian Arctic ...
  • Sea ice reduction drives genetic differentiation among Barents Sea polar bears 
    Maduna, Simo; Aars, Jon; Fløystad, Ida; Klutsch, Cornelya; Fiskebeck, Eve Marie Louise Zeyl; Wiig, Øystein; Ehrich, Dorothee; Andersen, Magnus; Bachmann, Lutz; Derocher, Andrew E.; Nyman, Tommi; Eiken, Hans Geir; Hagen, Snorre (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Loss of Arctic sea ice owing to climate change is predicted to reduce both genetic diversity and gene flow in ice-dependent species, with potentially negative consequences for their long-term viability. Here, we tested for ...
  • The role of satellite telemetry data in 21st century conservation of polar bears (Ursus maritimus). 
    Laidre, Kristin L.; Durner, George M.; Lunn, Nicholas J.; Regehr, Eric V.; Atwood, Todd C.; Rode, Karyn D.; Aars, Jon; Routti, Heli; Wiig, Øystein; Dyck, Markus; Richardson, Evan S.; Atkinson, Stephen; Belikov, Stanislav; Stirling, Ian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Satellite telemetry (ST) has played a critical role in the management and conservation of polar bears (Ursus maritimus) over the last 50 years. ST data provide biological information relevant to subpopulation delineation, ...