• Common eider and herring gull as contaminant indicators of different ecological niches of an urban fjord system 

      Thorstensen, Helene; Ruus, Anders; Helberg, Morten; Bæk, Kine; Enge, Ellen Katrin; Borgå, Katrine (Peer reviewed; Journal article, 2020)
      Seabirds like gulls are common indicators in contaminant monitoring. The herring gull (Larus argentatus) is a generalist with a broad range of dietary sources, possibly introducing a weakness in its representativeness of ...
    • Common Eider and Herring Gull as Contaminant Indicators of Different Ecological Niches of an Urban Fjord System 

      Thorstensen, Helene; Ruus, Anders; Helberg, Morten; Bæk, Kine; Enge, Ellen Katrin; Borgå, Katrine (Peer reviewed; Journal article, 2020)
      Seabirds like gulls are common indicators in contaminant monitoring. The herring gull (Larus argentatus) is a generalist with a broad range of dietary sources, possibly introducing a weakness in its representativeness of ...
    • Environmental Contaminants in an Urban Fjord, 2018 

      Ruus, Anders; Bæk, Kine; Rundberget, Thomas; Allan, Ian; Beylich, Bjørnar; Schlabach, Martin; Warner, Nicholas Alexander; Borgå, Katrine; Helberg, Morten (NIVA-rapport;L.nr. 7410-2019, Research report, 2019)
      This programme, “Environmental Contaminants in an Urban Fjord” has covered sampling and analyses of sediment and organisms in a marine food web of the Inner Oslofjord, in addition to samples of blood and eggs from herring ...
    • Global assessment of marine plastic exposure risk for oceanic birds 

      Clark, Bethany L.; Carneiro, Ana P. B.; Pearmain, Elizabeth J.; Rouyer, Marie-Morgane; Clay, Thomas A.; Cowger, Win; Phillips, Richard A.; Manica, Andrea; Hazin, Carolina; Eriksen, Marcus; González-Solís, Jacob; Adams, Josh; Albores-Barajas, Yuri V.; Alfaro-Shigueto, Joanna; Alho, Maria Saldanha; Araujo, Deusa Teixeira; Arcos, José Manuel; Arnould, John P. Y.; Barbosa, Nadito J. P.; Barbraud, Christophe; Beard, Annalea M.; Beck, Jessie; Bell, Elizabeth A.; Bennet, Della G.; Berlincourt, Maud; Biscoito, Manuel; Bjørnstad, Oskar K.; Bolton, Mark; Jones, Katherine A. Booth; Borg, John J.; Bourgeois, Karen; Bretagnolle, Vincent; Bried, Joël; Briskie, James V.; de L. Brook, M.; Brownlie, Katherine C.; Bugoni, Leandro; Calabrese, Licia; Campioni, Letizia; Carey, Mark J.; Carle, Ryan D.; Carlile, Nicholas; Carreiro, Ana R.; Catry, Paulo; Catry, Teresa; Cecere, Jacopo G.; Ceia, Filipe R.; Cherel, Yves; Choi, Chang-Yong; Cianchetti-Benedetti, Marco; Clarke, Rohan H.; Fayet, Annette; Dehnhard, Nina; Descamps, Sebastien; Helberg, Morten; Strøm, Hallvard (Peer reviewed; Journal article, 2023)
      Plastic pollution is distributed patchily around the world’s oceans. Likewise, marine organisms that are vulnerable to plastic ingestion or entanglement have uneven distributions. Understanding where wildlife encounters ...
    • Light-level geolocators reveal spatial variations in interactions between northern fulmars and fisheries 

      Dupuis, Benjamin; Amélineau, Françoise; Tarroux, Arnaud; Bjørnstad, Oskar; Bråthen, Vegard Sandøy; Danielsen, Jóhannis; Descamps, Sebastien; Fauchald, Per; Hallgrimsson, Gunnar Thor; Hansen, Erpur Snær; Helberg, Morten; Helgason, Halfdan Helgi; Jónsson, Jón Einar; Kolbeinsson, Yann; Lorentzen, Erlend; Thompson, Paul; Thórarinsson, Thorkell Lindberg; Strøm, Hallvard (Peer reviewed; Journal article, 2021)
      Seabird−fishery interactions are a common phenomenon of conservation concern. Here, we highlight how light-level geolocators provide promising opportunities to study these interactions. By examining raw light data, it is ...
    • Maternal transfer and occurrence of siloxanes, chlorinated paraffins, metals, PFAS and legacy POPs in herring gulls (Larus argentatus) of different urban influence 

      Knudtzon, Nina Cathrine; Thorstensen, Helene; Ruus, Anders; Helberg, Morten; Bæk, Kine; Enge, Ellen Katrin; Borgå, Katrine (Peer reviewed; Journal article, 2021)
      Urban herring gulls (Larus argentatus) are exposed to contaminants from aquatic, terrestrial and anthropogenic sources. We aim to assess if differences in urbanisation affect ecological niche and contaminant concentrations ...
    • Maternal transfer and occurrence of siloxanes, chlorinated paraffins, metals, PFAS and legacy POPs in herring gulls (Larus argentatus) of different urban influence 

      Knudtzon, Nina C.; Thorstensen, Helene; Ruus, Anders; Helberg, Morten; Bæk, Kine; Enge, Ellen K.; Borgå, Katrine (Peer reviewed; Journal article, 2021)
      Urban herring gulls (Larus argentatus) are exposed to contaminants from aquatic, terrestrial and anthropogenic sources. We aim to assess if differences in urbanisation affect ecological niche and contaminant concentrations ...
    • Six pelagic seabird species of the North Atlantic engage in a fly-and-forage strategy during their migratory movements 

      Amelineau, Francoise; Merkel, Benjamin; Tarroux, Arnaud; Descamps, Sebastien; Anker-Nilssen, Tycho; Bjørnstad, Oskar Kenneth; Bråthen, Vegard Sandøy; Chastel, Olivier; Christensen-Dalsgaard, Signe; Danielsen, Johannis; Daunt, Francis; Dehnhard, Nina; Erikstad, Kjell E.; Ezhov, Alexey; Fauchald, Per; Gavrilo, Maria; Hallgrimsson, Gunnar Thor; Hansen, Erpur Snær; Harris, Michael P.; Helberg, Morten; Helgason, Halfdan Helgi; Johansen, Malin Kjellstadli; Jonsson, Jón Einar; Kolbeinsson, Yann; Krasnov, Yuri V.; Langset, Magdalene; Lorentsen, Svein-Håkon; Lorentzen, Erlend; Melnikov, M.V.; Moe, Børge; Newell, M.A.; Olsen, Bergur; Reiertsen, Tone Kristin; Systad, Geir Helge Rødli; Thompson, P.; Thórarinsson, Torkell Lindberg; Tolmacheva, E.; Wanless, S.; Wojczulanis-Jakubas, Katarzyna; Åström, Jens; Strøm, Hallvard; Ekker, M. (Peer reviewed; Journal article, 2021)
      Bird migration is commonly defined as a seasonal movement between breeding and non-breeding grounds. It generally involves relatively straight and directed large-scale movements, with a latitudinal change, and specific ...
    • Territory location and quality, together with climate, affect the timing of breeding in the whitethroated dipper 

      Nilsson, Anna; Slagsvold, Tore; Røstad, Ole Wiggo; Knudsen, E.; Jerstad, Kurt; Cadahia, Luis; Reitan, Trond; Helberg, Morten; Walseng, Bjørn; Stenseth, Nils Christian (Journal article; Peer reviewed, 2019-05-21)
      Recent climate change has led to advanced spring phenology in many temperate regions. The phenological response to variation in the local environment, such as the habitat characteristics of the territories birds occupy, ...
    • Year-round distribution of Northeast Atlantic seabird populations: applications for population management and marine spatial planning 

      Fauchald, Per; Tarroux, Arnaud; Amelineau, Francoise; Bråthen, Vegard Sandøy; Descamps, Sebastien; Ekker, Morten; Helgason, Halfdan Helgi; Johansen, Malin Kjellstadli; Merkel, Benjamin; Moe, Børge; Åström, Jens; Anker-Nilssen, Tycho; Bjørnstad, Oskar; Chastel, Olivier; Christensen-Dalsgaard, Signe; Danielsen, Jóhannis; Daunt, Francis; Dehnhard, Nina; Erikstad, Kjell Einar; Ezhov, Alexey; Gavrilo, Maria; Hallgrimsson, Gunnar Thor; Snær Hansen, Erpur; Harris, Mike; Helberg, Morten; Jónsson, Jón Einar; Kolbeinsson, Yann; Krasnov, Yuri; Langset, Magdalene; Lorentsen, Svein Håkon; Lorentzen, Erlend; Newell, Mark; Olsen, Bergur; Reiertsen, Tone Kristin; Systad, Geir Helge; Thompson, Paul; Thórarinsson, Thorkell Lindberg; Wanless, Sarah; Wojczulanis-Jakubas, Katarzyna; Strøm, Hallvard (Peer reviewed; Journal article, 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. ...