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dc.contributor.authorLane, Jude V.
dc.contributor.authorJeglinski, Jana W.E.
dc.contributor.authorAvery-Gomm, Stephanie
dc.contributor.authorBallstaedt, Elmar
dc.contributor.authorBanyard, Ashley C.
dc.contributor.authorBarychka, Tatsiana
dc.contributor.authorBrown, Ian H.
dc.contributor.authorBrugger, Brigitte
dc.contributor.authorBurt, Tori V.
dc.contributor.authorCareen, Noah
dc.contributor.authorCastenschiold, Johan H.F.
dc.contributor.authorChristensen-Dalsgaard, Signe
dc.contributor.authorClifford, Shannon
dc.contributor.authorCollins, Sydney M.
dc.contributor.authorCunningham, Emma
dc.contributor.authorDanielsen, Jóhannis
dc.contributor.authorDaunt, Francis
dc.contributor.authorD'entremont, Kyle J.N.
dc.contributor.authorDoiron, Parker
dc.contributor.authorDuffy, Steven
dc.contributor.authorEnglish, Matthew D.
dc.contributor.authorFalchieri, Marco
dc.contributor.authorGiacinti, Jolene
dc.contributor.authorGjerset, Britt
dc.contributor.authorGranstad, Silje
dc.contributor.authorGrémillet, David
dc.contributor.authorGuillemette, Magella
dc.contributor.authorHallgrímsson, Gunnar T.
dc.contributor.authorHamer, Keith C.
dc.contributor.authorHammer, Sjúrður
dc.contributor.authorHarrison, Katherine
dc.contributor.authorHart, Justin D.
dc.contributor.authorHatsell, Ciaran
dc.contributor.authorHumpidge, Richard
dc.contributor.authorJames, Joe
dc.contributor.authorJenkinson, Audrey
dc.contributor.authorJessopp, Mark
dc.contributor.authorJones, Megan E.B.
dc.contributor.authorLair, Stéphane
dc.contributor.authorLewis, Thomas
dc.contributor.authorMalinowska, Alexandra A.
dc.contributor.authorMcCluskie, Aly
dc.contributor.authorMcPhail, Gretchen
dc.contributor.authorMoe, Børge
dc.contributor.authorMontevecchi, William A.
dc.contributor.authorMorgan, Greg
dc.contributor.authorNichol, Caroline
dc.contributor.authorNisbet, Craig
dc.contributor.authorOlsen, Bergur
dc.contributor.authorProvencher, Jennifer
dc.contributor.authorProvost, Pascal
dc.contributor.authorPurdie, Alex
dc.contributor.authorRail, Jean-François
dc.contributor.authorRobertson, Greg
dc.contributor.authorSeyer, Yannick
dc.contributor.authorSheddan, Maggie
dc.contributor.authorSoos, Catherine
dc.contributor.authorStephens, Nia
dc.contributor.authorStrøm, Hallvard
dc.contributor.authorSvansson, Vilhjálmur
dc.contributor.authorTierney, T. David
dc.contributor.authorTyler, Glen
dc.contributor.authorWade, Tom
dc.contributor.authorWanless, Sarah
dc.contributor.authorWard, Christopher R.E.
dc.contributor.authorWilhelm, Sabina I.
dc.contributor.authorWischnewski, Saskia
dc.contributor.authorWright, Lucy J.
dc.contributor.authorZonfrillo, Bernie
dc.contributor.authorMatthiopoulos, Jason
dc.contributor.authorVotier, Stephen C.
dc.coverage.spatialEurope, North America, Canada, Scotland, Germany, Norway, English Channelen_US
dc.identifier.citationIBIS. 2023, .en_US
dc.description.abstractDuring 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 Gannets Morus bassanus appeared to be especially severely impacted, but a detailed account of the data available is required to help understand how the HPAI virus (HPAIV) spread across the meta-population, and the ensuing demographic consequences. Accordingly, we analyse information on confirmed and suspected HPAIV outbreaks across most North Atlantic Gannet colonies and, for the largest colony (Bass Rock, UK), provide impacts on population size, breeding success, and preliminary results on apparent adult survival and serology. Unusually high numbers of dead Gannets were first noted at colonies in Iceland during April 2022. Outbreaks in May occurred in many Scottish colonies, followed by colonies in Canada, Germany and Norway. By the end of June, outbreaks had occurred in colonies in Canada and the English Channel. Outbreaks in 12 UK and Ireland colonies appeared to follow a clockwise pattern with the last infected colonies recorded in late August/September. Unusually high mortality was recorded at 40 colonies (75% of global total colonies). Dead birds testing positive for HPAIV H5N1 were associated with 58% of these colonies. At Bass Rock, the number of occupied nest-sites decreased by at least 71%, breeding success declined by c. 66% compared with the long-term UK mean and the resighting of marked individuals suggested that apparent adult survival between 2021 and 2022 could have been substantially lower than the preceding 10-year average. Serological investigation detected antibodies specific to H5 in apparently healthy birds, indicating that some Gannets recover from HPAIV infection. Further, most of these recovered birds had black irises, suggestive of a phenotypic indicator of previous infection. Untangling the impacts of HPAIV infection from other challenges faced by seabirds is key to establishing effective conservation strategies for threatened seabird populations as the likelihood of further epizootics increases, due to increasing habitat loss and the industrialization of poultry production.en_US
dc.description.abstractHigh pathogenicity avian influenza (H5N1) in Northern Gannets (Morus bassanus): Global spread, clinical signs and demographic consequencesen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.subjectavian fluen_US
dc.subjectvirus outbreaken_US
dc.titleHigh pathogenicity avian influenza (H5N1) in Northern Gannets (Morus bassanus): Global spread, clinical signs and demographic consequencesen_US
dc.title.alternativeHigh pathogenicity avian influenza (H5N1) in Northern Gannets (Morus bassanus): Global spread, clinical signs and demographic consequencesen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holder© 2023 The Authorsen_US
dc.subject.nsiVDP::Klinisk veterinærmedisinske fag: 950en_US
dc.subject.nsiVDP::Clinical veterinary sciences: 950en_US
dc.subject.nsiVDP::Klinisk veterinærmedisinske fag: 950en_US
dc.subject.nsiVDP::Clinical veterinary sciences: 950en_US
dc.relation.projectAndre: SEAPOP: 192141en_US

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal