Onshore–offshore gradient in metacommunity turnover emerges only over macroevolutionary time-scales
Invertebrate lineages tend to originate and become extinct at a higher rate in onshore than in offshore habitats over long temporal durations (more than 10 Myr), but it remains unclear whether this pattern scales down to durations of stages (less than 5 Myr) or even sequences (less than 0.5 Myr). We...
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ftpubmed:oai:pubmedcentral.nih.gov:4213617 2023-05-15T17:41:33+02:00 Onshore–offshore gradient in metacommunity turnover emerges only over macroevolutionary time-scales Tomašových, Adam Dominici, Stefano Zuschin, Martin Merle, Didier 2014-11-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4213617/ http://www.ncbi.nlm.nih.gov/pubmed/25297863 https://doi.org/10.1098/rspb.2014.1533 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4213617/ http://www.ncbi.nlm.nih.gov/pubmed/25297863 http://dx.doi.org/10.1098/rspb.2014.1533 © 2014 The Author(s) Published by the Royal Society. All rights reserved. Research Articles Text 2014 ftpubmed https://doi.org/10.1098/rspb.2014.1533 2015-11-29T01:12:05Z Invertebrate lineages tend to originate and become extinct at a higher rate in onshore than in offshore habitats over long temporal durations (more than 10 Myr), but it remains unclear whether this pattern scales down to durations of stages (less than 5 Myr) or even sequences (less than 0.5 Myr). We assess whether onshore–offshore gradients in long-term turnover between the tropical Eocene and the warm-temperate Plio-Pleistocene can be extrapolated from gradients in short-term turnover, using abundances of molluscan species from bulk samples in the northeast Atlantic Province. We find that temporal turnover of metacommunities does not significantly decline with depth over short durations (less than 5 Myr), but significantly declines with depth between the Eocene and Plio-Pleistocene (approx. 50 Myr). This decline is determined by a higher onshore extinction of Eocene genera and families, by a higher onshore variability in abundances of genera and families, and by an onshore expansion of genera and families that were frequent offshore in the Eocene. Onshore–offshore decline in turnover thus emerges only over long temporal durations. We suggest that this emergence is triggered by abrupt and spatially extensive climatic or oceanographic perturbations that occurred between the Eocene and Plio-Pleistocene. Plio-Pleistocene metacommunities show a high proportion of bathymetric generalists, in contrast to Eocene metacommunities. Accordingly, the net cooling and weaker thermal gradients may have allowed offshore specialists to expand into onshore habitats and maintain their presence in offshore habitats. Text Northeast Atlantic PubMed Central (PMC) Proceedings of the Royal Society B: Biological Sciences 281 1795 20141533 |
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Research Articles Tomašových, Adam Dominici, Stefano Zuschin, Martin Merle, Didier Onshore–offshore gradient in metacommunity turnover emerges only over macroevolutionary time-scales |
topic_facet |
Research Articles |
description |
Invertebrate lineages tend to originate and become extinct at a higher rate in onshore than in offshore habitats over long temporal durations (more than 10 Myr), but it remains unclear whether this pattern scales down to durations of stages (less than 5 Myr) or even sequences (less than 0.5 Myr). We assess whether onshore–offshore gradients in long-term turnover between the tropical Eocene and the warm-temperate Plio-Pleistocene can be extrapolated from gradients in short-term turnover, using abundances of molluscan species from bulk samples in the northeast Atlantic Province. We find that temporal turnover of metacommunities does not significantly decline with depth over short durations (less than 5 Myr), but significantly declines with depth between the Eocene and Plio-Pleistocene (approx. 50 Myr). This decline is determined by a higher onshore extinction of Eocene genera and families, by a higher onshore variability in abundances of genera and families, and by an onshore expansion of genera and families that were frequent offshore in the Eocene. Onshore–offshore decline in turnover thus emerges only over long temporal durations. We suggest that this emergence is triggered by abrupt and spatially extensive climatic or oceanographic perturbations that occurred between the Eocene and Plio-Pleistocene. Plio-Pleistocene metacommunities show a high proportion of bathymetric generalists, in contrast to Eocene metacommunities. Accordingly, the net cooling and weaker thermal gradients may have allowed offshore specialists to expand into onshore habitats and maintain their presence in offshore habitats. |
format |
Text |
author |
Tomašových, Adam Dominici, Stefano Zuschin, Martin Merle, Didier |
author_facet |
Tomašových, Adam Dominici, Stefano Zuschin, Martin Merle, Didier |
author_sort |
Tomašových, Adam |
title |
Onshore–offshore gradient in metacommunity turnover emerges only over macroevolutionary time-scales |
title_short |
Onshore–offshore gradient in metacommunity turnover emerges only over macroevolutionary time-scales |
title_full |
Onshore–offshore gradient in metacommunity turnover emerges only over macroevolutionary time-scales |
title_fullStr |
Onshore–offshore gradient in metacommunity turnover emerges only over macroevolutionary time-scales |
title_full_unstemmed |
Onshore–offshore gradient in metacommunity turnover emerges only over macroevolutionary time-scales |
title_sort |
onshore–offshore gradient in metacommunity turnover emerges only over macroevolutionary time-scales |
publisher |
The Royal Society |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4213617/ http://www.ncbi.nlm.nih.gov/pubmed/25297863 https://doi.org/10.1098/rspb.2014.1533 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4213617/ http://www.ncbi.nlm.nih.gov/pubmed/25297863 http://dx.doi.org/10.1098/rspb.2014.1533 |
op_rights |
© 2014 The Author(s) Published by the Royal Society. All rights reserved. |
op_doi |
https://doi.org/10.1098/rspb.2014.1533 |
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Proceedings of the Royal Society B: Biological Sciences |
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281 |
container_issue |
1795 |
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20141533 |
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1766143169128300544 |