The effects of changing climate on faunal depth distributions determine winners and losers
Changing climate is predicted to impact all depths of the global oceans, yet projections of range shifts in marine faunal distributions in response to changing climate seldom evaluate potential shifts in depth distribution. Marine ectotherms' thermal tolerance is limited by their ability to mai...
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ftpubmed:oai:pubmedcentral.nih.gov:4310292 2023-05-15T15:11:14+02:00 The effects of changing climate on faunal depth distributions determine winners and losers Brown, Alastair Thatje, Sven 2015-01 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4310292 http://www.ncbi.nlm.nih.gov/pubmed/25044552 https://doi.org/10.1111/gcb.12680 en eng John Wiley & Sons Ltd http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/25044552 http://dx.doi.org/10.1111/gcb.12680 © 2014 The Authors. Global Change Biology Published by John Wiley & Sons Ltd. http://creativecommons.org/licenses/by/3.0/ This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Primary Research Articles Text 2015 ftpubmed https://doi.org/10.1111/gcb.12680 2015-02-15T00:55:45Z Changing climate is predicted to impact all depths of the global oceans, yet projections of range shifts in marine faunal distributions in response to changing climate seldom evaluate potential shifts in depth distribution. Marine ectotherms' thermal tolerance is limited by their ability to maintain aerobic metabolism (oxygen- and capacity-limited tolerance), and is functionally associated with their hypoxia tolerance. Shallow-water (<200 m depth) marine invertebrates and fishes demonstrate limited tolerance of increasing hydrostatic pressure (pressure exerted by the overlying mass of water), and hyperbaric (increased pressure) tolerance is proposed to depend on the ability to maintain aerobic metabolism, too. Here, we report significant correlation between the hypoxia thresholds and the hyperbaric thresholds of taxonomic groups of shallow-water fauna, suggesting that pressure tolerance is indeed oxygen limited. Consequently, it appears that the combined effects of temperature, pressure and oxygen concentration constrain the fundamental ecological niches (FENs) of marine invertebrates and fishes. Including depth in a conceptual model of oxygen- and capacity-limited FENs' responses to ocean warming and deoxygenation confirms previous predictions made based solely on consideration of the latitudinal effects of ocean warming (e.g. Cheung et al., 2009), that polar taxa are most vulnerable to the effects of climate change, with Arctic fauna experiencing the greatest FEN contraction. In contrast, the inclusion of depth in the conceptual model reveals for the first time that temperate fauna as well as tropical fauna may experience substantial FEN expansion with ocean warming and deoxygenation, rather than FEN maintenance or contraction suggested by solely considering latitudinal range shifts. Text Arctic Climate change PubMed Central (PMC) Arctic Global Change Biology 21 1 173 180 |
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Primary Research Articles Brown, Alastair Thatje, Sven The effects of changing climate on faunal depth distributions determine winners and losers |
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Primary Research Articles |
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Changing climate is predicted to impact all depths of the global oceans, yet projections of range shifts in marine faunal distributions in response to changing climate seldom evaluate potential shifts in depth distribution. Marine ectotherms' thermal tolerance is limited by their ability to maintain aerobic metabolism (oxygen- and capacity-limited tolerance), and is functionally associated with their hypoxia tolerance. Shallow-water (<200 m depth) marine invertebrates and fishes demonstrate limited tolerance of increasing hydrostatic pressure (pressure exerted by the overlying mass of water), and hyperbaric (increased pressure) tolerance is proposed to depend on the ability to maintain aerobic metabolism, too. Here, we report significant correlation between the hypoxia thresholds and the hyperbaric thresholds of taxonomic groups of shallow-water fauna, suggesting that pressure tolerance is indeed oxygen limited. Consequently, it appears that the combined effects of temperature, pressure and oxygen concentration constrain the fundamental ecological niches (FENs) of marine invertebrates and fishes. Including depth in a conceptual model of oxygen- and capacity-limited FENs' responses to ocean warming and deoxygenation confirms previous predictions made based solely on consideration of the latitudinal effects of ocean warming (e.g. Cheung et al., 2009), that polar taxa are most vulnerable to the effects of climate change, with Arctic fauna experiencing the greatest FEN contraction. In contrast, the inclusion of depth in the conceptual model reveals for the first time that temperate fauna as well as tropical fauna may experience substantial FEN expansion with ocean warming and deoxygenation, rather than FEN maintenance or contraction suggested by solely considering latitudinal range shifts. |
format |
Text |
author |
Brown, Alastair Thatje, Sven |
author_facet |
Brown, Alastair Thatje, Sven |
author_sort |
Brown, Alastair |
title |
The effects of changing climate on faunal depth distributions determine winners and losers |
title_short |
The effects of changing climate on faunal depth distributions determine winners and losers |
title_full |
The effects of changing climate on faunal depth distributions determine winners and losers |
title_fullStr |
The effects of changing climate on faunal depth distributions determine winners and losers |
title_full_unstemmed |
The effects of changing climate on faunal depth distributions determine winners and losers |
title_sort |
effects of changing climate on faunal depth distributions determine winners and losers |
publisher |
John Wiley & Sons Ltd |
publishDate |
2015 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4310292 http://www.ncbi.nlm.nih.gov/pubmed/25044552 https://doi.org/10.1111/gcb.12680 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/25044552 http://dx.doi.org/10.1111/gcb.12680 |
op_rights |
© 2014 The Authors. Global Change Biology Published by John Wiley & Sons Ltd. http://creativecommons.org/licenses/by/3.0/ This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
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CC-BY |
op_doi |
https://doi.org/10.1111/gcb.12680 |
container_title |
Global Change Biology |
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21 |
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1 |
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173 |
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180 |
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