Browsing NINA Brage by Author "Strøm, Hallvard"

Now showing items 1-20 of 35

    • A probabilistic algorithm to process geolocation data 

      Merkel, Benjamin; Phillips, Richard A.; Descamps, Sébastien; Yoccoz, Nigel Gilles; Moe, Børge; Strøm, Hallvard (Journal article; Peer reviewed, 2016)
      Background: The use of light level loggers (geolocators) to understand movements and distributions in terrestrial and marine vertebrates, particularly during the non-breeding period, has increased dramatically in recent ...

    • Activity patterns of wintering Great Skuas Stercorarius skua 

      Magnusdottir, Ellen; Leat, Eliza H. K.; Bourgeon, Sophie; Jónsson, Jón E.; Phillips, Richard A.; Strøm, Hallvard; Petersen, Aevar; Hanssen, Sveinn Are; Bustnes, Jan Ove; Furness, Robert W. (Peer reviewed; Journal article, 2014)
      Capsule Great Skuas Stercorarius skua wintering in different areas spent different amounts of time in flight (foraging or searching for food) and so may be experiencing different feeding conditions. Aims To compare the ...

    • Arctic-breeding seabirds’ hotspots in space and time - A methodological framework for year-round modelling of environmental niche and abundance using light-logger data 

      Fauchald, Per; Tarroux, Arnaud; Bråthen, Vegard Sandøy; Descamps, Sebastien; Ekker, Morten; Helgason, Hálfdán Helgi; Merkel, Benjamin; Moe, Børge; Åström, Jens; Strøm, Hallvard (NINA Rapport;1657, Research report, 2019)
      Fauchald, P., Tarroux, A., Bråthen, V. S., Descamps, S., Ekker, M., Helgason, H. H., Merkel, B., Moe, B., Åström, J., Strøm, H. 2019. Arctic-breeding seabirds’ hotspots in space and time -a methodological framework for ...

    • An automated procedure (v2.0) to obtain positions from light-level geolocators in large-scale tracking of seabirds. A method description for the SEATRACK project 

      Bråthen, Vegard Sandøy; Moe, Børge; Amélineau, Françoise; Ekker, Morten; Fauchald, Per; Helgason, Hálfdán Helgi; Johansen, Malin Kjellstadli; Merkel, Benjamin; Tarroux, Arnaud; Åström, Jens; Strøm, Hallvard (NINA Report;1893, Research report, 2021)
      Bråthen, V.S., Moe, B., Amélineau, F., Ekker, M., Fauchald, P.,Helgason, H.H., Johansen, M. K., Merkel, B., Tarroux, A., Åström, J. & Strøm, H. 2021. An automated procedure (v2.0) to obtain positions from light-level ...

    • Bestandsanslag av hekkende og mytende fugl i Bellsundområdet 

      Hanssen, Sveinn Are; Strøm, Hallvard; Descamps, Sebastian; Moe, Børge (NINA rapport;1020, Research report, 2014)
      Ved oppstart av gruvedrift i Lunckefjell ble det i tillatelsen fra Miljøverndepartementet stilt visse vilkår til Store Norske Spitsbergen Grubekompani (SNSG). I disse vilkårene inngikk blant annet et bestandsanslag av (1) ...

    • 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 (Peer reviewed; Journal article, 2020)
      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 ...

    • Diverging phenological responses of Arctic seabirds to an earlier spring 

      Descamps, Sébastien; Ramírez, Francisco; Benjaminsen, Sigurd; Anker-Nilssen, Tycho; Barrett, Robert; Burr, Zofia; Christensen-Dalsgaard, Signe; Erikstad, Kjell-Einar; Irons, David B.; Lorentsen, Svein-Håkon; Mallory, Mark L.; Robertson, Gregory J.; Reiertsen, Tone Kristin; Strøm, Hallvard; Varpe, Øystein; Lavergne, Sébastien (Peer reviewed; Journal article, 2019)
      The timing of annual events such as reproduction is a critical component of how free‐living organisms respond to ongoing climate change. This may be especially true in the Arctic, which is disproportionally impacted by ...

    • Effekter av akutte bestandsreduksjoner hos sjøfugl knyttet til Lofoten, Vesterålen og Barentshavet 

      Reiertsen, Tone Kristin; Erikstad, Kjell Einar; Johansen, Malin Kjellstadli; Sandvik, Hanno; Anker-Nilssen, Tycho; Barrett, Rob; Christensen-Dalsgaard, Signe; Lorentsen, Svein-Håkon; Strøm, Hallvard; Systad, Geir (NINA Rapport;1547, Research report, 2019)
      Flere sjøfuglarter går tilbake globalt blant annet pga. klimaendringer. Det er derfor viktig å av-dekke tilleggseffekter av ytterligere påvirkninger, som for eksempel oljesøl. Oljesøl kan føre til massedød blant sjøfugl. ...

    • Erfaringer fra kartlegging og overvåking av sjøfugler ved leteboring i Barentshavet 2014 

      Follestad, Arne; Fauchald, Per; Erikstad, Kjell Einar; Strøm, Hallvard (NINA rapport;1175, Research report, 2015-11-11)
      Westergaard, K.B., Hanssen, O., Endrestøl, A., Often, A., Stabbetorp, O., Staverløkk, A. & Ødegaard, F. 2015. Spredning av fremmede arter med planteimport til Norge – NINA Rapport 1136. 105 s. Sommeren 2014 fikk Statoil, ...

    • Feather Corticosterone Levels on Wintering GroundsHave No Carry-Over Effects on Breeding among ThreePopulations of Great Skuas (Stercorarius skua) 

      Bourgeon, Sophie; Leat, Eliza H. K.; Magnusdottir, Ellen; Furness, Robert W.; Strøm, Hallvard; Petersen, Aevar; Gabrielsen, Geir W.; Hanssen, Sveinn Are; Bustnes, Jan Ove (Peer reviewed; Journal article, 2014)
      Environmental conditions encountered by migratory seabirds in their wintering areas can shape their fitness. However, the underlying physiological mechanisms remain largely unknown as birds are relatively inaccessible ...

    • 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 ...

    • High pathogenicity avian influenza (H5N1) in Northern Gannets (Morus bassanus): Global spread, clinical signs and demographic consequences 

      Lane, Jude V.; Jeglinski, Jana W.E.; Avery-Gomm, Stephanie; Ballstaedt, Elmar; Banyard, Ashley C.; Barychka, Tatsiana; Brown, Ian H.; Brugger, Brigitte; Burt, Tori V.; Careen, Noah; Castenschiold, Johan H.F.; Christensen-Dalsgaard, Signe; Clifford, Shannon; Collins, Sydney M.; Cunningham, Emma; Danielsen, Jóhannis; Daunt, Francis; D'entremont, Kyle J.N.; Doiron, Parker; Duffy, Steven; English, Matthew D.; Falchieri, Marco; Giacinti, Jolene; Gjerset, Britt; Granstad, Silje; Grémillet, David; Guillemette, Magella; Hallgrímsson, Gunnar T.; Hamer, Keith C.; Hammer, Sjúrður; Harrison, Katherine; Hart, Justin D.; Hatsell, Ciaran; Humpidge, Richard; James, Joe; Jenkinson, Audrey; Jessopp, Mark; Jones, Megan E.B.; Lair, Stéphane; Lewis, Thomas; Malinowska, Alexandra A.; McCluskie, Aly; McPhail, Gretchen; Moe, Børge; Montevecchi, William A.; Morgan, Greg; Nichol, Caroline; Nisbet, Craig; Olsen, Bergur; Provencher, Jennifer; Provost, Pascal; Purdie, Alex; Rail, Jean-François; Robertson, Greg; Seyer, Yannick; Sheddan, Maggie; Soos, Catherine; Stephens, Nia; Strøm, Hallvard; Svansson, Vilhjálmur; Tierney, T. David; Tyler, Glen; Wade, Tom; Wanless, Sarah; Ward, Christopher R.E.; Wilhelm, Sabina I.; Wischnewski, Saskia; Wright, Lucy J.; Zonfrillo, Bernie; Matthiopoulos, Jason; Votier, Stephen C. (Peer reviewed; Journal article, 2023)
      During 2021 and 2022 High Pathogenicity Avian Influenza (HPAI) killed thousands of wild birds across Europe and North America, suggesting a change in infection dynamics and a shift to new hosts, including seabirds. Northern ...

    • Hybridization of Atlantic puffins in the Arctic coincides with 20th-century climate change 

      Kersten, Oliver Sven; Star, Bastiaan; Krabberød, Anders Kristian; Atmore, Lane; Tørresen, Ole K.; Anker-Nilssen, Tycho; Descamps, Sebastien; Strøm, Hallvard; Johansson, Ulf S.; Sweet, Paul R.; Jakobsen, Kjetill Sigurd; Boessenkool, Sanne (Peer reviewed; Journal article, 2023)
      The Arctic is experiencingthe fastest rates of globalwarming,leadingto shiftsin the distributionof its biotaandincreasingthe potentialfor hybridization. However, genomicevidenceof recenthybridization events in theArctic ...

    • Identifisering av viktige områder for sjøfugl i norske havområder - innspill til forvaltningsplanarbeidet 2018 

      Systad, Geir Helhe Rødli; Fauchald, Per; Deschamps, Sebastian; Christensen-Dalsgaard, Signe; Strøm, Hallvard; Tarroux, Arnaud (NINA Rapport;1627, Research report, 2019)
      Systad, G.H.R., Fauchald, P., Descamps, S., Christensen-Dalsgaard, S., Strøm, H. & Tarroux, A. 2019. Identifisering av viktige områder for sjøfugl i norske havområder – innspill til forvaltningsplanarbeidet 2019. NINA ...

    • Individual migration strategy fidelity but no habitat specialization in two congeneric seabirds 

      Merkel, Benjamin; Descamps, Sebastien; Yoccoz, Nigel; Grémillet, David; Daunt, Francis; Erikstad, Kjell E; Ezhov, Aleksey V.; Harris, Mike P.; Gavrilo, Maria; Lorentsen, Svein Håkon; Reiertsen, Tone Kristin; Steen, Harald; Systad, Geir Helge Rødli; Þórarinsson, Þorkell Lindberg; Wanless, Sarah; Strøm, Hallvard (Peer reviewed; Journal article, 2020)
      Abstract Aim: In migratory species, individuals often use fixed and individual-specific migration strategies, which we term individual migration strategy fidelity (IMSF). Our goal was to test if guillemots have flexible ...

    • Inter-annual variation in winter distribution affects individual seabird contamination with mercury 

      Albert, Céline; Bråthen, Vegard Sandøy; Descamps, Sebastien; Anker-Nilssen, Tycho; Cherenkov, A.; Christensen-Dalsgaard, Signe; Danielsen, Johannis; Erikstad, Kjell E.; Gavrilo, Maria; Hanssen, Sveinn Are; Helgason, Halfdan Helgi; Jonsson, Jón Einar; Kolbeinsson, Yann; Krasnov, Yuri V.; Langset, Magdalene; Lorentzen, Erlend; Olsen, Bergur; Reiertsen, Tone Kristin; Strøm, Hallvard; Systad, Geir Helge Rødli; Tertitski, G.; Thompson, P.M; Thórarinsson, Torkell Lindberg; Bustamante, P.; Moe, Børge; Fort, Jérôme (Peer reviewed; Journal article, 2021)
      Migratory seabirds are exposed to various pollutants throughout their annual cycle. Among them, mercury (Hg) is of particular concern given its large impact on animal health. Recent studies suggest that winter is a critical ...

    • Kunnskapsstatus Barentshavet sør. Sjøfugl i våre nordlige havområder 

      Systad, Geir Helge; Strøm, Hallvard (NINA Rapport;877, Research report, 2012)
      Denne rapporten tar for seg kunnskapsstatus for sjøfugl i det sørlige Barentshavet, både i norsk og russisk sektor. Etter at SEAPOP ble etablert har kunnskapen om fordeling av sjøfugl i dette området blitt kraftig forbedret, ...

    • Later at higher latitudes: large-scale variability in seabird breeding timing and synchronicity 

      Burr, Zofia M.; Varpe, Øystein; Anker-Nilssen, Tycho; Erikstad, Kjell E; Descamps, Sébastien; Barrett, Robert T; Bech, Claus; Christensen-Dalsgaard, Signe; Lorentsen, Svein-Håkon; Moe, Børge; Reiertsen, Tone Kristin; Strøm, Hallvard (Peer reviewed; Journal article, 2016)
      In seasonal environments, organisms are expected to optimally schedule reproduction within an annual range of environmental conditions. Latitudinal gradients generate a range of seasonality to which we can expect adaptations ...

    • 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 ...

    • Metapopulation regulation acts at multiple spatial scales: Insights from a century of seabird colony census data 

      Jeglinski, Jana W.E.; Wanless, Sarah; Murray, Stuart; Barrett, Robert; Gardarsson, Arnthor; Harris, Mike P.; Dierschke, Jochen; Strøm, Hallvard; Lorentsen, Svein-Håkon; Matthiopoulos, Jason (Peer reviewed; Journal article, 2023)
      Density-dependent feedback is recognized as important regulatory mechanisms of population size. Considering the spatial scales over which such feedback operates has advanced our theoretical understanding of metapopulation ...