Blar i forfatter "Wojczulanis-Jakubas, Katarzyna"

Viser treff 1-3 av 3

    • Contrasting Spatial and Seasonal Trends of Methylmercury Exposure Pathways of Arctic Seabirds: Combination of Large-Scale Tracking and Stable Isotopic Approaches 

      Renedo, Marina; Amouroux, David; Albert, Céline; Bérail, Sylvain; Bråthen, Vegard Sandøy; Gavrilo, Maria; Grémillet, David; Helgason, Hálfdán H.; Jakubas, Dariusz; Mosbech, Anders; Strøm, Hallvard; Tessier, Emmanuel; Wojczulanis-Jakubas, Katarzyna; Bustamante, Paco; Fort, Jérôme (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-16)
      Despite the limited direct anthropogenic mercury (Hg) inputs in the circumpolar Arctic, elevated concentrations of methylmercury (MeHg) are accumulated in Arctic marine biota. However, the MeHg production and bioaccumulation pathways in these ecosystems have not been completely unraveled. We measured Hg concentrations and stable isotope ratios of Hg, carbon, and nitrogen in the feathers and blood ...

    • Molecular tools prove little auks from Svalbard are extremely selective for Calanus glacialis even when exposed to Atlantification 

      Balazy, Kaja; Trudnowska, Emilia; Wojczulanis-Jakubas, Katarzyna; Jakubas, Dariusz; Præbel, Kim; Choquet, Marvin; Brandner, Melissa Michelle; Schultz, Mads; Bitz-Thorsen, Julie; Boehnke, Rafał; Szeligowska, Marlena; Descamps, Sebastien; Strøm, Hallvard; Blachowiak-Samolyk, Kasia (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-22)
      Two Calanus species, C. glacialis and C. finmarchicus, due to different life strategies and environmental preferences act as an ecological indicators of Arctic Atlantification. Their high lipid content makes them important food source for higher trophic levels of Arctic ecosystems including the most abundant Northern Hemisphere's seabird, the little auk (Alle alle). Recent studies indicate a critical ...

    • Year-round distribution of Northeast Atlantic seabird populations: applications for population management and marine spatial planning 

      Fauchald, Per; Amélineau, Françoise; Bråthen, Vegard Sandøy; Descamps, Sebastien; Ekker, Morten; Helgason, Halfdan Helgi; Johansen, Malin; Merkel, Benjamin; Moe, Børge; Åström, Jens; Bjørnstad, Oskar; Chastel, Olivier; Christensen-Dalsgaard, Signe; Danielsen, Jóhannis; Daunt, Francis; Dehnhard, Nina; Erikstad, Kjell E.; Ezhov, Alexey; Gavrilo, Maria; Hallgrimsson, Gunnar Thor; Hansen, Erpur Snær; Harris, Mike; Helberg, Morten; Jónsson, Jón Einar; Kolbeinsson, Yann; Krasnov, Yuri V.; Langset, Magdalene; Lorentsen, Svein-Håkon; Lorentzen, Erlend; Newell, Mark; Olsen, Bergur; Reiertsen, Tone Kristin; Systad, Geir Helge Rødli; Thompson, Paul; Thórarinsson, Thorkell Lindberg; Wanless, Sarah; Wojczulanis-Jakubas, Katarzyna; Strøm, Hallvard (Journal article; Tidsskriftartikkel; Peer reviewed, 2021)
      Tracking data of marine predators are increasingly used in marine spatial management. We developed a spatial data set with estimates of the monthly distribution of 6 pelagic seabird species breeding in the Northeast Atlantic. The data set was based on year-round global location sensor (GLS) tracking data of 2356 adult seabirds from 2006−2019 from a network of seabird colonies, data describing the ...