The effects of changing climate on faunal depth distributions determine winners and losers
Abstract 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 abili...
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crwiley:10.1111/gcb.12680 2024-09-15T18:02:32+00:00 The effects of changing climate on faunal depth distributions determine winners and losers Brown, Alastair Thatje, Sven Natural Environment Research Council 2014 http://dx.doi.org/10.1111/gcb.12680 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12680 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12680 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.12680 en eng Wiley http://creativecommons.org/licenses/by/3.0/ Global Change Biology volume 21, issue 1, page 173-180 ISSN 1354-1013 1365-2486 journal-article 2014 crwiley https://doi.org/10.1111/gcb.12680 2024-08-22T04:17:00Z Abstract 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 ( FEN s) of marine invertebrates and fishes. Including depth in a conceptual model of oxygen‐ and capacity‐limited FEN s' 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. Article in Journal/Newspaper Climate change Wiley Online Library Global Change Biology 21 1 173 180 |
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Abstract 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 ( FEN s) of marine invertebrates and fishes. Including depth in a conceptual model of oxygen‐ and capacity‐limited FEN s' 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. |
author2 |
Natural Environment Research Council |
format |
Article in Journal/Newspaper |
author |
Brown, Alastair Thatje, Sven |
spellingShingle |
Brown, Alastair Thatje, Sven The effects of changing climate on faunal depth distributions determine winners and losers |
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 |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1111/gcb.12680 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12680 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12680 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.12680 |
genre |
Climate change |
genre_facet |
Climate change |
op_source |
Global Change Biology volume 21, issue 1, page 173-180 ISSN 1354-1013 1365-2486 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.1111/gcb.12680 |
container_title |
Global Change Biology |
container_volume |
21 |
container_issue |
1 |
container_start_page |
173 |
op_container_end_page |
180 |
_version_ |
1810439987809746944 |