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Article Dans Une Revue Proceedings of the National Academy of Sciences of the United States of America Année : 2024

Climate change drives migratory range shift via individual plasticity in shearwaters

Patrick J Lewin
Joe Wynn
José Manuel Arcos
Josephine Blagrove
Sarah Bond
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Gemma Carrasco
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Lewis Fisher-Reeves
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David García
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Tim Guilford
Isobel Hawkins
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Paris Jaggers
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Christian Kirk
Lou Maurice
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Greg Morgan
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Jason Moss
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Elisa Miquel Riera
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Ana Rodriguez
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Katrina Siddiqi-Davies
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Russell B Wynn
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Oliver Padget
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Résumé

Significance We repeatedly tracked Balearic shearwaters, allowing us to investigate how changes in migratory behavior generate range-shift under climate change. Range-shifts are often viewed only as population-level phenomena but we show that, in this long-lived seabird, individuals flexibly respond to increasing temperatures throughout their lives by migrating further north. We link this plasticity to changes in migratory behavior and associated spatial cognition. In particular, shearwaters appear to regulate the speed of return migration by estimating the distance of the migratory route. Nonetheless, this increased speed is insufficient to avoid delayed return phenology. These findings contribute to our understanding of how individual flexibility in migratory behaviors and spatial cognition might allow animals to track shifting resources under climate change.

Dates et versions

hal-04431942 , version 1 (05-02-2024)

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Citer

Patrick J Lewin, Joe Wynn, José Manuel Arcos, Rhiannon E Austin, Josephine Blagrove, et al.. Climate change drives migratory range shift via individual plasticity in shearwaters. Proceedings of the National Academy of Sciences of the United States of America, 2024, 121 (6), pp.e2312438121. ⟨10.1073/pnas.2312438121⟩. ⟨hal-04431942⟩
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