Climate-driven changes in functional biogeography of Arctic marine fish communities

Proceedings of the National Academy of Sciences of the United States of America
André FrainerMichaela Aschan

Abstract

Climate change triggers poleward shifts in species distribution leading to changes in biogeography. In the marine environment, fish respond quickly to warming, causing community-wide reorganizations, which result in profound changes in ecosystem functioning. Functional biogeography provides a framework to address how ecosystem functioning may be affected by climate change over large spatial scales. However, there are few studies on functional biogeography in the marine environment, and none in the Arctic, where climate-driven changes are most rapid and extensive. We investigated the impact of climate warming on the functional biogeography of the Barents Sea, which is characterized by a sharp zoogeographic divide separating boreal from Arctic species. Our unique dataset covered 52 fish species, 15 functional traits, and 3,660 stations sampled during the recent warming period. We found that the functional traits characterizing Arctic fish communities, mainly composed of small-sized bottom-dwelling benthivores, are being rapidly replaced by traits of incoming boreal species, particularly the larger, longer lived, and more piscivorous species. The changes in functional traits detected in the Arctic can be predicted based on the cha...Continue Reading

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Citations

Feb 15, 2018·Proceedings of the National Academy of Sciences of the United States of America·Nigel G YoccozTorkild Tveraa
Nov 3, 2017·Proceedings of the National Academy of Sciences of the United States of America·Leif Christian Stige, Kristina Øie Kvile
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Aug 4, 2019·Global Change Biology·Matthew McLeanArnaud Auber
Aug 25, 2019·Proceedings of the National Academy of Sciences of the United States of America·Geir Ottersen, Jess Melbourne-Thomas
Jan 31, 2020·Ecology Letters·Andrew GonzalezMichel Loreau
Dec 6, 2019·Global Change Biology·Hubert du PontaviceWilliam W L Cheung
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Aug 31, 2020·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Martin SolanChristian März
Aug 31, 2020·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Martin SolanJasmin A Godbold
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Mar 20, 2021·The Science of the Total Environment·Hedvig Kriszta CsapóJan Marcin Węsławski
Apr 6, 2021·Reviews in Fish Biology and Fisheries·Jess Melbourne-ThomasGretta T Pecl
Apr 8, 2021·Proceedings. Biological Sciences·André FrainerMichaela Aschan
Aug 22, 2021·Scientific Reports·Lucia Di IorioPierre Boissery

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Methods Mentioned

BETA
PCA

Software Mentioned

R package FD
tree
R
randomForest
nlme
piecewiseSEM

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