High pathogenicity avian influenza (H5N1) in Northern Gannets ( Morus bassanus ): Global spread, clinical signs and demographic consequences - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Ibis Année : 2023

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

Jude Lane
Jana W.E. Jeglinski
Stephanie Avery-Gomm
Elmar Ballstaedt
  • Fonction : Auteur
Ashley Banyard
Tatsiana Barychka
Ian Brown
Brigitte Brugger
Tori Burt
Noah Careen
  • Fonction : Auteur
Johan H.F. Castenschiold
  • Fonction : Auteur
Signe Christensen-Dalsgaard
Shannon Clifford
  • Fonction : Auteur
Sydney Collins
Emma Cunningham
  • Fonction : Auteur
Jóhannis Danielsen
  • Fonction : Auteur
Francis Daunt
Kyle J.N. d'Entremont
Parker Doiron
  • Fonction : Auteur
Steven Duffy
  • Fonction : Auteur
Matthew English
  • Fonction : Auteur
Marco Falchieri
  • Fonction : Auteur
Jolene Giacinti
Britt Gjerset
  • Fonction : Auteur
Silje Granstad
  • Fonction : Auteur
Magella Guillemette
  • Fonction : Auteur
Gunnar Hallgrímsson
  • Fonction : Auteur
Keith Hamer
Sjúrður Hammer
Katherine Harrison
  • Fonction : Auteur
Justin Hart
  • Fonction : Auteur
Ciaran Hatsell
  • Fonction : Auteur
Richard Humpidge
  • Fonction : Auteur
Joe James
Audrey Jenkinson
  • Fonction : Auteur
Mark Jessopp
Megan E.B. Jones
  • Fonction : Auteur
Stéphane Lair
  • Fonction : Auteur
Thomas Lewis
Alexandra Malinowska
Aly Mccluskie
  • Fonction : Auteur
Gretchen Mcphail
  • Fonction : Auteur
Børge Moe
William Montevecchi
Greg Morgan
  • Fonction : Auteur
Caroline Nichol
  • Fonction : Auteur
Craig Nisbet
  • Fonction : Auteur
Bergur Olsen
  • Fonction : Auteur
Jennifer Provencher
Pascal Provost
  • Fonction : Auteur
Alex Purdie
  • Fonction : Auteur
Jean‐françois Rail
  • Fonction : Auteur
Greg Robertson
Yannick Seyer
Maggie Sheddan
  • Fonction : Auteur
Catherine Soos
Nia Stephens
  • Fonction : Auteur
Hallvard Strøm
Vilhjálmur Svansson
  • Fonction : Auteur
T. David Tierney
  • Fonction : Auteur
Glen Tyler
  • Fonction : Auteur
Tom Wade
  • Fonction : Auteur
Sarah Wanless
Christopher R.E. Ward
Sabina Wilhelm
Saskia Wischnewski
Lucy Wright
Bernie Zonfrillo
  • Fonction : Auteur
Jason Matthiopoulos
Stephen Votier

Résumé

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 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.
Fichier principal
Vignette du fichier
Lane et al Ibis 2023.pdf (989.49 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04254722 , version 1 (23-10-2023)

Identifiants

Citer

Jude Lane, Jana W.E. Jeglinski, Stephanie Avery-Gomm, Elmar Ballstaedt, Ashley Banyard, et al.. High pathogenicity avian influenza (H5N1) in Northern Gannets ( Morus bassanus ): Global spread, clinical signs and demographic consequences. Ibis, inPress, ⟨10.1111/ibi.13275⟩. ⟨hal-04254722⟩
44 Consultations
46 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More