FN Archimer Export Format PT J TI Migratory patterns of two major influenza virus host species on tropical islands BT AF Lebarbenchon, Camille Boucher, Solenn Feare, Chris Dietrich, Muriel Larose, Christine Humeau, Laurence Le Corre, Matthieu Jaeger, Audrey AS 1:1;2:1,2;3:3;4:1;5:3;6:4;7:2;8:2; FF 1:;2:;3:;4:;5:;6:;7:;8:; C1 Université de La Réunion, UMR Processus infectieux en milieu insulaire tropical (PIMIT), INSERM 1187, CNRS 9192, IRD 249, 2 rue Maxime Rivière, Sainte-Clotilde, La Réunion, France Université de la Réunion, UMR Ecologie marine tropicale des océans Pacifique et Indien (ENTROPIE), CNRS IRD, IFREMER, Université de Nouvelle-Calédonie, 15 Avenue René Cassin, Saint Denis, La Réunion, France WildWings Bird Management, Haslemere, Surrey, UK Université de La Réunion, UMR Peuplements végétaux et bioagresseurs en milieu tropical (PVBMT), CIRAD, 15 Avenue René Cassin, Saint Denis, La Réunion, France C2 UNIV LA REUNION, FRANCE UNIV LA REUNION, FRANCE WILDWINGS BIRD MANAGEMENT, UK UNIV LA REUNION, FRANCE UM ENTROPIE IN WOS Cotutelle UMR DOAJ copubli-france copubli-europe IF 3.5 TC 1 UR https://archimer.ifremer.fr/doc/00856/96758/105313.pdf https://archimer.ifremer.fr/doc/00856/96758/105314.zip LA English DT Article DE ;brown noddy;lesser noddy;sooty tern;tracking;serology;Seychelles AB Animal migration is a major driver of infectious agent dispersal. Duck and seabird migrations, for instance, play a key role in the spatial transmission dynamics and gene flow of avian influenza viruses (AIV), worldwide. On tropical islands, brown and lesser noddies ( Anous stolidus and Anous tenuirostris ) may be important AIV hosts, but the lack of knowledge on their migratory behaviour limits our understanding of virus circulation in island networks. Here we show that high connectivity between islands generated by non-breeding dispersive behaviours may be a major driver in the spread and the maintenance of AIV among tropical islands of the western Indian Ocean. Tracking data highlight two types of dispersive behaviours during the non-breeding season: birds either staying in the vicinity of their breeding ground (on Bird Island, Seychelles), or moving to and roosting on other islands in the western Indian Ocean. Migrant birds used a wide range of roosting places from the Tanzanian coasts to the Maldives archipelago and Tromelin Island. Epidemiological data confirm that brown and lesser noddies are major hosts for AIV, although significant variations of seroprevalence between species suggest that other biological and ecological drivers could be involved in virus infection and transmission dynamics. PY 2023 PD OCT SO Royal Society Open Science SN 2054-5703 PU The Royal Society VL 10 IS 10 UT 001151328500001 DI 10.1098/rsos.230600 ID 96758 ER EF