Trait-mediated shifts and climate velocity decouple an endothermic marine predator and its ectothermic prey

Abstract Climate change is redistributing biodiversity globally and distributional shifts have been found to follow local climate velocities. It is largely assumed that marine endotherms such as cetaceans might shift more slowly than ectotherms in response to warming and would primarily follow chang...

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Autores principales:	L. H. Thorne, J. A. Nye
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/42b96626e6e34a4bb2fb36ed6e6c1be8
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spelling	oai:doaj.org-article:42b96626e6e34a4bb2fb36ed6e6c1be82021-12-02T15:31:36ZTrait-mediated shifts and climate velocity decouple an endothermic marine predator and its ectothermic prey10.1038/s41598-021-97318-z2045-2322https://doaj.org/article/42b96626e6e34a4bb2fb36ed6e6c1be82021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97318-zhttps://doaj.org/toc/2045-2322Abstract Climate change is redistributing biodiversity globally and distributional shifts have been found to follow local climate velocities. It is largely assumed that marine endotherms such as cetaceans might shift more slowly than ectotherms in response to warming and would primarily follow changes in prey, but distributional shifts in cetaceans are difficult to quantify. Here we use data from fisheries bycatch and strandings to examine changes in the distribution of long-finned pilot whales (Globicephala melas), and assess shifts in pilot whales and their prey relative to climate velocity in a rapidly warming region of the Northwest Atlantic. We found a poleward shift in pilot whale distribution that exceeded climate velocity and occurred at more than three times the rate of fish and invertebrate prey species. Fish and invertebrates shifted at rates equal to or slower than expected based on climate velocity, with more slowly shifting species moving to deeper waters. We suggest that traits such as mobility, diet specialization, and thermoregulatory strategy are central to understanding and anticipating range shifts. Our findings highlight the potential for trait-mediated climate shifts to decouple relationships between endothermic cetaceans and their ectothermic prey, which has important implications for marine food web dynamics and ecosystem stability.L. H. ThorneJ. A. NyeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q L. H. Thorne J. A. Nye Trait-mediated shifts and climate velocity decouple an endothermic marine predator and its ectothermic prey
description	Abstract Climate change is redistributing biodiversity globally and distributional shifts have been found to follow local climate velocities. It is largely assumed that marine endotherms such as cetaceans might shift more slowly than ectotherms in response to warming and would primarily follow changes in prey, but distributional shifts in cetaceans are difficult to quantify. Here we use data from fisheries bycatch and strandings to examine changes in the distribution of long-finned pilot whales (Globicephala melas), and assess shifts in pilot whales and their prey relative to climate velocity in a rapidly warming region of the Northwest Atlantic. We found a poleward shift in pilot whale distribution that exceeded climate velocity and occurred at more than three times the rate of fish and invertebrate prey species. Fish and invertebrates shifted at rates equal to or slower than expected based on climate velocity, with more slowly shifting species moving to deeper waters. We suggest that traits such as mobility, diet specialization, and thermoregulatory strategy are central to understanding and anticipating range shifts. Our findings highlight the potential for trait-mediated climate shifts to decouple relationships between endothermic cetaceans and their ectothermic prey, which has important implications for marine food web dynamics and ecosystem stability.
format	article
author	L. H. Thorne J. A. Nye
author_facet	L. H. Thorne J. A. Nye
author_sort	L. H. Thorne
title	Trait-mediated shifts and climate velocity decouple an endothermic marine predator and its ectothermic prey
title_short	Trait-mediated shifts and climate velocity decouple an endothermic marine predator and its ectothermic prey
title_full	Trait-mediated shifts and climate velocity decouple an endothermic marine predator and its ectothermic prey
title_fullStr	Trait-mediated shifts and climate velocity decouple an endothermic marine predator and its ectothermic prey
title_full_unstemmed	Trait-mediated shifts and climate velocity decouple an endothermic marine predator and its ectothermic prey
title_sort	trait-mediated shifts and climate velocity decouple an endothermic marine predator and its ectothermic prey
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/42b96626e6e34a4bb2fb36ed6e6c1be8
work_keys_str_mv	AT lhthorne traitmediatedshiftsandclimatevelocitydecoupleanendothermicmarinepredatoranditsectothermicprey AT janye traitmediatedshiftsandclimatevelocitydecoupleanendothermicmarinepredatoranditsectothermicprey
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Trait-mediated shifts and climate velocity decouple an endothermic marine predator and its ectothermic prey

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