Blar i NINA Brage på forfatter "Anker-Nilssen, Tycho"

Viser treff 1-20 av 58

    • Assessing incidental bycatch of seabirds in Norwegian coastal commercial fisheries: Empirical and methodological lessons 

      Fangel, Kirstin; Aas, Øystein; Vølstad, Jon Helge; Bærum, Kim Magnus; Christensen-Dalsgaard, Signe; Nedreaas, Kjell Harald; Overvik, Modolf; Wold, Line Camilla; Anker-Nilssen, Tycho (Peer reviewed; Journal article, 2015)
      With diminishing seabird populations and little knowledge on incidental bycatch in fisheries in the Northeast Atlantic, this study aimed to screen seabird bycatch in Norwegian coastal fisheries in 2009. The purpose was ...

    • Atlantic Puffin Fratercula arctica fishing in a freshwater lake to feed its chick 

      Anker-Nilssen, Tycho; Bangjord, Georg (Peer reviewed; Journal article, 2021)
      We present details for the observation of an adult Atlantic Puffin Fratercula arctica collecting food in Lake Linnévatnet (78°02’N 13°48’E), the second largest freshwater lake in the Svalbard archipelago, on 11 August 2020. ...

    • Bifangst av sjøfugl i norske fiskerier - eksisterende kunnskap og forslag til kartleggingsprosjekt 

      Christensen-Dalsgaard, Signe; Fangel, Kirstin; Dervo, Børre Kind; Anker-Nilssen, Tycho (NINA Rapport;382, Research report, 2008)
      Christensen-Dalsgaard, S., Fangel, K., Dervo, B.K. & Anker-Nilssen, T. 2008. Bifangst av sjøfugl i norske fiskerier - eksisterende kunnskap og forslag til kartleggingsprosjekt. – NINA Rapport 382. 62 s. Formålet med denne ...

    • Bifangst av sjøfugl i norske kystfiskerier. Et kartleggings- og metodeutprøvingsprosjekt med fokus på fiske med garn og line 

      Fangel, Kirstin; Wold, Line Camilla; Aas, Øystein; Christensen-Dalsgaard, Signe; Qvenild, Marte; Anker-Nilssen, Tycho (NINA rapport;719, Research report, 2011)
      Fangel, K., Wold, L.C, Aas, Ø., Christensen-Dalsgaard, S., Qvenild, M. & Anker-Nilssen, T. 2011. Bifangst av sjøfugl i norske kystfiskerier. Et kartleggings- og metodeutprøvingsprosjekt med fokus på fiske med garn og ...

    • Circumpolar dynamics of a marine top-predator track ocean warming rates. 

      Descamps, Sebastian; Anker-Nilssen, Tycho; Barrett, Robert T; Irons, D; Merkel, Flemming; Robertson, Gregory J.; Yoccoz, Nigel Gilles; Mallory, Mark L; Montevecchi, William A.; Boertmann, D.; Artukhin, Yuri; Christensen-Dalsgaard, Signe; Erikstad, Kjell E; Gilchrist, H. Grant; Labansen, Aili; Lorentsen, Svein Håkon; Mosbech, Anders; Olsen, Bergur; Petersen, Aevar; Rail, Jean-Francois; Renner, Heather M.; Strøm, H.; Systad, Geir Helge; Wilhelm, Sabina I.; Zelenskaya, Larisa (Journal article; Peer reviewed, 2017)
      Global warming is a nonlinear process, and temperature may increase in a stepwise manner. Periods of abrupt warming can trigger persistent changes in the state of ecosystems, also called regime shifts. The responses of ...

    • Co-developing guidance for conservation: An example for seabirds in the North-East Atlantic in the face of climate change impacts 

      Häkkinen, Henry; Taylor, Nigel G.; Pettorelli, Nathalie; Sutherland, William J.; Aldara, Jon; Anker-Nilssen, Tycho; Aulert, Christophe; van Bemmelen, Rob S.A.; Burnell, Daisy; Cadiou, Bernard; Campioni, Letizia; Clark, Bethany L.; Dehnhard, Nina; Dias, Maria P.; Enners, Leonie; Furness, Robert W.; Hallgrímsson, Gunnar Þor; Hammer, Sjúrður; Hansen, Erpur Snær; Hario, Martti; Hurling, Stephen; Jessopp, Mark; Kleinschmidt, Birgit; Leivits, Meelis; Maniszewska, Klaudyna; Oppel, Steffen; Payo-Payo, Ana; Piec, Daniel; Ramos, Jaime A.; Robin, Frédéric; Sørensen, Iben Hove; Stīpniece, Antra; Thompson, Danielle L.; Vulcano, Antonio; Petrovan, Silviu (Peer reviewed; Journal article, 2023)
      Conservation guidance—an authoritative source of information and recommendations explicitly supporting decision-making and action regarding nature conservation—represents an important tool to communicate evidence-based ...

    • Consequences of cross-season demographic correlations for population viability 

      Layton-Matthews, Kate; Reiertsen, Tone Kristin; Erikstad, Kjell E.; Anker-Nilssen, Tycho; Daunt, Francis; Wanless, Sarah; Barrett, Robert; Newell, Mark A; Harris, Mike P. (Peer reviewed; Journal article, 2023)
      Demographic correlations are pervasive in wildlife populations and can represent important secondary drivers of population growth. Empirical evidence suggests that correlations are in general positive for long-lived ...

    • 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 ...

    • Dødsårsak og opprinnelse for alkefugler som strandet på Rogalandskysten i februar 2003 

      Aarvak, Tomas; Anker-Nilssen, Tycho (NINA Rapport;95, Research report, 2005)
      Aarvak, T. & Anker-Nilssen, T. 2005. Dødsårsak og opprinnelse for alkefugler som strandet på Rogalandskysten i februar 2003. – NINA Rapport 95. Etter en episode med massedød av sjøfugler tidlig i februar 2003 på kysten ...

    • 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. ...

    • Fit is fat: winter body mass of Atlantic Puffins Fratercula arctica 

      Anker-Nilssen, Tycho; Harris, Michael P.; Jensen, Jens-Kjeld (Journal article; Peer reviewed, 2018)
      Capsule: Atlantic Puffins Fratercula arctica from Scottish and Norwegian populations were significantly heavier in winter than when rearing chicks. Aims: To compare body masses of Atlantic Puffins on their wintering grounds ...

    • Forage fish abundance is a predictor of timing of breeding and hatching brood size in a coastal seabird 

      Lorentsen, Svein-Håkon; Anker-Nilssen, Tycho; Erikstad, Kjell E; Røv, Nils (Journal article; Peer reviewed, 2015)
      Current and future climate alterations might impact ecological processes like timing of breeding. We used multivariate linear models to assess the importance of food availability and climate on timing of breeding and ...

    • Foraging behaviour of black guillemots at three Norwegian sites during the breeding season 

      Dehnhard, Nina; Anker-Nilssen, Tycho; Johnston, Daniel; Masden, Elizabeth A.; Lorentsen, Svein-Håkon; Christensen-Dalsgaard, Signe (Peer reviewed; Journal article, 2023)
      The intensifcation of coastal development poses potential threats for coastal seabirds, and understanding their habitat use is a key factor to guide conservation and management. In sub-arctic areas, black guillemots (Cepphus ...

    • Forebyggende tiltak mot bifangst av sjøfugl i norske fiskerier 

      Bærum, Kim Magnus; Christensen-Dalsgaard, Signe; Anker-Nilssen, Tycho (NINA Temahefte;82, Book, 2021)

    • Global phenological insensitivity to shifting ocean temperatures among seabirds 

      Keogan, Katharine; Daunt, Francis; Wanless, Sarah; Phillips, Richard A.; Walling, Craig A.; Agnew, Philippa; Ainley, David G.; Anker-Nilssen, Tycho; Ballard, Grant; Barrett, Robert T; Barton, Kerry J.; Bech, Claus; Becker, Peter; Berglund, Per-Arvid; Bollache, Loïc; Bond, Alexander L.; Bouwhuis, Sandra; Bradley, Russell W.; Burr, Zofia; Camphuysen, Kees; Catry, Paulo; Chiaradia, Andre; Christensen-Dalsgaard, Signe; Cuthbert, Richard; Dehnhard, Nina; Descamps, Sébastien; Diamond, Tony; Divoky, George; Drummond, Hugh; Dugger, Katie M.; Dunn, Michael J.; Emmerson, Louise; Erikstad, Kjell Einar; Fort, Jérôme; Fraser, William; Genovart, Meritxell; Gilg, Olivier; González-Solís, Jacob; Granadeiro, José Pedro; Grémillet, David; Hansen, Jannik; Hanssen, Sveinn Are; Harris, Mike; Hedd, April; Hinke, Jefferson; Igual, José Manuel; Jahncke, Jaime; Jones, Ian; Kappes, Peter J.; Lang, Johannes; Langset, Magdalene; Lorentsen, Svein Håkon; Moe, Børge; Reiertsen, Tone (Journal article; Peer reviewed, 2018)
      Reproductive timing in many taxa plays a key role in determining breeding productivity1, and is often sensitive to climatic conditions2. Current climate change may alter the timing of breeding at different rates across ...

    • Global population and conservation status of the Great Black-backed Gull Larus marinus 

      Langlois Lopez, Samuel; Bond, Alexander L.; O'Hanlon, Nina J.; Wilson, Jared M.; Vitz, Andrew; Mostello, Carolyn S.; Hamilton, Frederick; Rail, Jean-Francois; Welch, Linda; Boettcher, Ruth; Wilhelm, Sabina I.; Anker-Nilssen, Tycho; Daunt, Francis; Masden, Elizabeth (Peer reviewed; Journal article, 2022)
      The Great Black-backed Gull Larus marinus is a generalist species that inhabits temperate and arctic coasts of the north Atlantic Ocean. In recent years, there has been growing concern about population declines at local ...

    • 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 ...

    • 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 ...

    • 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 ...

    • Levedyktighetsanalyser for norske lomvibestander 

      Erikstad, K.E.; Reiertsen, T.K.; Anker-Nilssen, Tycho; Barrett, Robert T; Lorentsen, Svein-Håkon; Strøm, H.; Systad, G.H. (NINA Rapport;240, Research report, 2007)
      Erikstad, K.E, Reiertsen, T.K., Anker-Nilssen, T., Barrett, R.T., Lorentsen, S.-H., Strøm, H. og Systad, G.H. 2007. Levedyktighetsanalyser for norske lomvibestander. NINA Rappport 240, 25 s. Hekkebestandene av lomvi (Uria ...