HPAIV outbreak triggers short-term colony connectivity in a seabird metapopulation

Author:

Jeglinski Jana W. E.,Lane Jude V.,Votier Steven C.,Furness Robert W.,Hamer Keith C.,McCafferty Dominic J.,Nager Ruedi G.,Sheddan Maggie,Wanless Sarah,Matthiopoulos Jason

Abstract

AbstractDisease outbreaks can drastically disturb the environment of surviving animals, but the behavioural, ecological, and epidemiological consequences of disease-driven disturbance are poorly understood. Here, we show that an outbreak of High Pathogenicity Avian Influenza Virus (HPAIV) coincided with unprecedented short-term behavioural changes in Northern gannets (Morus bassanus). Breeding gannets show characteristically strong fidelity to their nest sites and foraging areas (2015–2019; n = 120), but during the 2022 HPAIV outbreak, GPS-tagged gannets instigated long-distance movements beyond well-documented previous ranges and the first ever recorded visits of GPS-tagged adults to other gannet breeding colonies. Our findings suggest that the HPAIV outbreak triggered changes in space use patterns of exposed individuals that amplified the epidemiological connectivity among colonies and may generate super-spreader events that accelerate disease transmission across the metapopulation. Such self-propagating transmission from and towards high density animal aggregations may explain the unexpectedly rapid pan-European spread of HPAIV in the gannet.

Funder

Natural Environment Research Council

UK Department for Business, Energy and Industrial Strategy Offshore Energy Strategic Environmental Assessment BEIS OSEA program

Nature Restoration Fund

Publisher

Springer Science and Business Media LLC

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