HPAIV outbreak triggers short-term colony connectivity in a seabird metapopulation.
HPAIV outbreak triggers short-term colony connectivity in a seabird metapopulation.
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HPAIV 的爆发会触发海鸟种群中的短期群体连通性。
DOI：
10.1038/s41598-024-53550-x
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发表时间：
2024
影响因子：
4.6
通讯作者：
Jeglinski JWE
中科院分区：
文献类型：
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作者：
Jeglinski JWE
疾病爆发会极大地扰乱幸存动物的环境，但人们对疾病引起的扰乱的行为、生态和流行病学后果知之甚少。在这里，我们发现高致病性禽流感病毒 (HPAIV) 的爆发与北方塘鹅 (Morus bassanus) 前所未有的短期行为变化同时发生。繁殖中的塘鹅对其巢穴和觅食区域表现出强烈的忠诚度（2015-2019 年；n = 120），但在 2022 年 HPAIV 爆发期间，带有 GPS 标签的塘鹅引发了长距离移动，超出了有据可查的先前活动范围，并且首次有记录显示带有 GPS 标签的成鸟访问其他塘鹅繁殖地。我们的研究结果表明，高致病性禽流感病毒的爆发引发了暴露个体空间使用模式的变化，从而扩大了群体之间的流行病学联系，并可能产生超级传播者事件，加速疾病在集合群体中的传播。这种来自和向高密度动物聚集体的自我传播传播可能解释了高致病性禽流感病毒在塘鹅中出人意料地在欧洲范围内迅速传播的原因。
Disease 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.