Publications
Fayet, A.L., Anker-Nilssen, T., Breistøl, A., Descamps, S., Hanssen, S.A., Reiertsen, T.K., Bustnes, J.O., Christensen-Dalsgaard, S., Dehnhard, N., Erikstad, K.E., Follestad, A., Langset, M., Layton-Matthews, K., Lorentsen, S.-H., Lorentzen, E., Moe, B., Strøm, H., Systad, G.H.R. 2024. Key-site monitoring in Norway 2023, including Svalbard and Jan Mayen. SEAPOP Short Report 1-2024: 17 s
Benjaminsen, S.C., Dehnhard, N., Herzke, D., Johnsen, A., Anker-Nilssen, T., Bourgeon, S., Collard, F., Langset, M., Christensen-Dalsgaard, S., Gabrielsen, G.W. 2024. The challenges of opportunistic sampling when comparing prevalence of plastics in diving seabirds: A multi-species example from Norway. Marine Pollution Bulletin, 199:116037. 7 pp.
Anker-Nilssen, T., Kadin, M., Hilde, C.H. 2024. Stay or go? Changing breeding conditions affect sexual difference in colony attendance strategies of Atlantic puffins Fratercula arctica. Ecology and Evolution 14, e11681.
Grémillet, D., Descamps, S. 2023. Ecological impacts of climate change on Arctic marine megafauna. Trends in Ecology & Evolution 38:8, pp 773-783
Hanssen,, S.A.; Erikstad, K.E.; Sandvik, H.; Tveraa, T.; Bustnes, J.O. 2023. Eyes on the future: buffering increased costs of incubation by abandoning offspring. Behavioural Ecology 34:2, pp 189-196.
Bonnet-Lebrun, A.-S., Matthiopoulos, J., Lemaire-Patin, R., Deville, T., Barrett, R., Bogdanova, M. I., Bolton, M., Christensen-Dalsgaard, S., Daunt, F., Dehnhard, N., Descamps, S., Elliott, K., Erikstad, K.E., Frederiksen, M., Gilchrist, G., Harris, M., Kolbeinsson, Y., Linnebjerg, J.F., Lorentsen, S-H., Mallory, M., Merkel, F., Mosbech, A., Owen, E., Patterson, A., Pratte, I., Strøm, H., Þórarinsson, Þ.L., Wanless, S., Ratcliffe, N. 2025. Drivers of interspecific spatial segregation in two closely-related seabird species at a Pan-Atlantic scale. Journal of Biogeography 52:2. pp 408–421.
Maaseide, B.M.T., Ofstad, J., Erbe, A., Jaspers, V.L.B., Monclús, L., Dehnhard, N. 2024. Microplastics in faeces of European shags Gulosus aristotelis in central Norway. Marine Pollution Bulletin 208: 117026
Fauchald, P., Ollus, V.M.S., Ballesteros, M., Breistøl, A., Christensen-Dalsgaard, S., Molværsmyr, S., Tarroux, A., Systad, G.H., Moe, B. 2024. Mapping seabird vulnerability to offshore wind farms in Norwegian waters. Front. Mar. Sci. 11:1335224. doi: 10.3389/fmars.2024.1335224
Layton-Matthews, K., Hilde, C.H., Setsaas, E. (red.), Anker-Nilssen, T., Christensen-Dalsgaard, S., Dehnhard, N., Descamps, S., Fauchald, P., Fayet, A., Hanssen, S.A., Layton-Matthews, K., Lorentsen, S.-H., Merkel, B., Moe, B., Reiertsen, T.K., Strøm, H., Systad, G.H., Jacobsen, K.-O., Molværsmyr, S., Bårdsen, B.J., Bærum, K.M. 2025. Sjøfugl i Norge 2024. Resultater fra SEAPOP-programmet. Arsbrosjyre SEAPOP. ISSN 1893-8752. 40 s
Fayet, A.L. (red.), Anker-Nilssen, T., Breistøl, A., Descamps, S., Hanssen, S.A., Reiertsen, T.K., Bustnes, J.O., Christensen-Dalsgaard, S., Dehnhard, N., Erikstad, K.-E., Follestad, A., Langset, M., Layton-Matthews, K., Lorentsen, S.-H., Lorentzen, E., Moe, B., Strøm, H., Systad, G.H.R., Tarroux, A. 2025. Key-site monitoring in Norway 2024, including Svalbard and Jan Mayen. SEAPOP Short Report 1-2025. SEAPOP. 17 pp
Hansen, E.S., Sandvik, H., Erikstad, K.E., Yoccoz, N.G., Anker-Nilssen, T., Bader, J., Descamps, S., Hodges, K., Mesquita, M.S., Reiertsen, T.K., Varpe, Ø. 2021. Centennial relationships between ocean temperature and Atlantic puffin production reveal shifting decennial trends. Glob Change Biol. 2021;00:1–12. https://doi. org/10.1111/gcb.15665
Frederiksen, M., Layton-Matthews, K., Bennett, S., Castenschiold, J.H.F., Cruz-Flores, M., Edney, A.J., Fauchald, P., Franklin, K.A., Guímaro, H.R., Hereward, H.F.R., Johnston, D.T., Merkel, B., Molværsmyr, S., Sauser, C., Snell, K.R.S., Humphreys, E.M. 2025. Opportunities and challenges for new technologies in seabird population monitoring. ICES Journal of Marine Science 82:9. https://doi.org/10.1093/icesjms/fsaf115
Layton-Matthews, K., Hilde, C.H., Setsaas, E. (red.), Anker-Nilssen, T., Christensen-Dalsgaard, S., Dehnhard, N., Descamps, S., Fauchald, P., Fayet, A., Hanssen, S.A., Lorentsen, S.-H., Merkel, B., Moe, B., Reiertsen, T.K., Strøm, H., Systad, G.H., Jacobsen, K.-O., Molværsmyr, S., Bårdsen, B.J., Bærum, K.M. 2025. Sjøfugl i Norge 2024. Årsbrosjyre SEAPOP: 40 pp
Descamps, S., Merkel, B., Strøm, H. 2025. Local variations in population trends and migration strategies of Brünnich’s guillemots on Svalbard. Mar Ecol Prog Ser 765:101-114 https://doi.org/10.3354/meps14893
Shannon, G., Layton-Matthews, K., Lorentsen, S.-H., Mattisson, J., Christensen-Dalsgaard, S., Dehnhard, N. 2025. Loggers affect the foraging behaviour and fitness of European shags. Journal of Avian Biology, 6. https://doi.org/10.1002/jav.03534
Dørum, H., Descamps, S., Moe, B., Bårdsen, B.-J., Hansen. K-T., Hanssen, S.A., Sauser, C., Marnela, M., Gerland, S., Gabrielsen, G.W. 2025. Intra-population variation in the effects of sea ice reduction on an Arctic breeding bird. Ecosphere 16:4. https://doi.org/10.1002/ecs2.70081
Clegg, T.L., Christensen-Dalsgaard, S., Sandøy Bråthen, V., Tarroux, A., Danielsen, J., Descamps, S. Follestad, A., Hallgrimsson, G.T., Helberg, M., Helgason, H.H., Jónsson, J.E., Kolbeinsson, Y., Strøm, H., Thompson, P., Thorarinsson, T.L., Williams, T., Bærum, K.M. 2024. Bycatch of northern fulmar (Fulmarus glacialis) in Norwegian longline fisheries: Assessing spatiotemporal variations in scale and risk to improve management. Global Ecology and Conservation, Vol. 56. https://doi.org/10.1016/j.gecco.2024.e03350
Layton-Matthews, K., Regan, C.E., Ballesteros, M., Hodges, K., Descamps, S., Anker-Nilssen, T., Benjaminsen, S., Daunt, F., Barrett, R.T., Buckingham, L., Bråthen, V.S., Christensen-Dalsgaard, S., Dehnhard, N., Erikstad, K.E., Fayet, A.L., Helgason, H.H., Johansen, M.K., Lorentsen, S.-H., Lorentzen, E., Moe, B., Systad, G.H., Strøm, H., Searle, K.R., Reiertsen, T.K. 2025. Demographic responses of North Atlantic seabirds to seasonal ocean warming. PNAS 122:50. https://doi.org/10.1073/pnas.2507531122
Albert, C., Moe, B., Strøm, H., Grémillet, D., Brault-Favrou, M., Tarroux, A., Descamps, S., Bråthen, V.S., Merkel, B., Åström, J., Amélineau, F., Angelier, F., Anker-Nilssen, T., Chastel, O., Christensen-Dalsgaard, S., Danielsen, J., Elliott, K., Erikstad, K.E., Ezhov, A., Fauchald, P., Gabrielsen, G., Gavrilo, M., Hanssen, S.A., Helgason, H.H., Kjellstadli, M., Kolbeinsson, Y., Krasnov, Y., Langset, M., Lamaire, J., Lorentsen, S.-H., Olsen, B., Patterson, A., Plumejeau-Perreau, C., Reiertsen, T.K., Systad, G.H.R., Thompson, P.M., Thórarinsson, T.L., Bustamante, P., Fort, J. 2024. Seabirds reveal mercury distribution across the North Atlantic. PNAS 121(21): e2315513121.
Clairbaux, M., Rönkä, M., Anker-Nilssen, T., Artukhin, Y., Danielsen, J., Gavrilo, M., Gilchrist, G., Hansen, E.S., Hedd, A., Kaler, R., Kuletz, K., Olsen, B., Mallory, M.L., Merkel, F.R., Strøm, H., Fort, J., Grémillet, D. 2024. An ecologically sound and participatory monitoring network for pan-Arctic seabirds. Conserv. Biol. 38: e14287.
Fangel, K., Bærum, K.M., Christensen-Dalsgaard, S., Aas, Ø., Anker-Nilssen, T. 2017. Incidental bycatch of northern fulmars in the small-vessel demersal longline fishery for Greenland halibut in coastal Norway 2012-2014. ICES J. Mar. Sci. 74: 332-342.
Harris, M.P., Anker-Nilssen, T., McCleery, R.H., Erikstad, K.E., Shaw, D.N., Grosbois, V. 2005. Effect of wintering area and climate on the survival of adult Atlantic puffins Fratercula arctica in the eastern Atlantic. Mar Ecol Prog Ser 297: 283-296.
Lorentsen, S.-H., Anker-Nilssen, T., Barrett, R.T., Systad, G.H. 2021. Population status, breeding biology and diet of Norwegian Great Cormorants. Ardea 109(2): 35-48.
Reiertsen, T.K., Erikstad, K.E., Anker-Nilssen, T., Barrett, R.T., Boulinier, T., Frederiksen, M., González-Solís, J., Grémillet, D., Johns, D., Moe, B., Ponchon, A., Skern-Mauritzen, M., Sandvik, H., Yoccoz, N.G. 2014. Prey density in non-breeding areas affects adult survival of black-legged kittiwakes Rissa tridactyla. Mar Ecol Prog Ser 509: 289-302.
Sandvik, H., Reiertsen, T.K., Erikstad, K.E., Anker-Nilssen, T., Barrett, R.T., Lorentsen, S.-H., Systad, G.H., Myksvoll, M.S. 2014. The decline of Norwegian kittiwake populations: modelling the role of ocean warming. Clim Res 60: 91-102.
Albert, C., Strøm, H., Helgason, H.H., Bråthen, V.S., Gudmundsson, F.T., Bustamante, P., Fort, J. 2022. Spatial variations in winter Hg contamination affect egg volume in an Arctic seabird, the great skua (Stercorarius skua). Environmental Pollution 314:
Underwood, A.K.P., Descamps, S., Sagerup, K., Herzke, D., Gabrielsen, G.W. 2025. Anthropogenic compounds in the northernmost Atlantic puffin population. Marine Pollution Bulletin 218: 118225
Killeen, H., Sydeman, W.J., Hoover, B., Thompson, S.A., Kristiansen, T., García-Reyes, M., Koval, G., Ceballos, E., Heal, M., Anker-Nilssen, T., Barrett, R., Becker, P., Berglund, P.-A., Birkhead, T., Boulinier, T., Bouwhuis, S., Daunt, F., Dehnhard, N., Diamond, A., Elliott, K., Erikstad, K.E., Fayet, A.L., Flint, E., Furness, R.W., Golubova, E., Hansen, E.S., Harris, M., Hatch, S., Hedd, A., Hentati-Sundberg, J., Jahncke, J., Kitaysky, A., Lorentsen, S.-H., Lyons, D., Major. H.L., Mazurkiewicz, D., Miles, W., Newell, M., Orben, R.A., Oro, D., Parker, M., Plissner, J., Rail, J.-F., Reiertsen, T.K., Renner, H., Rock, J.C., Strøm, H., Suryan, R.M., Thayer, J., Trowbridge, J., Velarde, E., Wanless, S., Warzybok, P., Watanuki, Y., Whelan, S., Young, L. 2025. Ecosystems mediate climate impacts on northern hemisphere seabirds. Commun Earth Environ 6, 804 (2025). https://doi.org/10.1038/s43247-025-02717-z
Bråthen, V.S., Dehnhard, N., Fayet, A.L., Christensen-Dalsgaard, S., Lorentsen, S.-H., Anker-Nilssen, T. 2026. Divergent migratory strategies of black guillemots from two colonies in the Norwegian Sea. Marine Biology 173:22. https://doi.org/10.1007/s00227-025-04757-7
Bertrand, P., Bêty, J., Yoccoz, N.G., Vihtakari, M., Elliott, K., Harris, S.M., Patrick, S.C, Strøm, H., Steen, H., Descamps, S. 2025. Interannual variation in foraging decisions in chick-rearing black-legged kittiwakes. Behavioral Ecology, 36:4. https://doi.org/10.1093/beheco/araf018