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Abundance and local-scale processes contribute to multi-phyla gradients in global marine diversity
Among the most enduring ecological challenges is an integrated theory explaining the latitudinal biodiversity gradient, including discrepancies observed at different spatial scales. Analysis of Reef Life Survey data for 4127 marine species at 2406 coral and rocky sites worldwide confirms that the to...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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American Association for the Advancement of Science
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5647131/ https://www.ncbi.nlm.nih.gov/pubmed/29057321 http://dx.doi.org/10.1126/sciadv.1700419 |
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author | Edgar, Graham J. Alexander, Timothy J. Lefcheck, Jonathan S. Bates, Amanda E. Kininmonth, Stuart J. Thomson, Russell J. Duffy, J. Emmett Costello, Mark J. Stuart-Smith, Rick D. |
author_facet | Edgar, Graham J. Alexander, Timothy J. Lefcheck, Jonathan S. Bates, Amanda E. Kininmonth, Stuart J. Thomson, Russell J. Duffy, J. Emmett Costello, Mark J. Stuart-Smith, Rick D. |
author_sort | Edgar, Graham J. |
collection | PubMed |
description | Among the most enduring ecological challenges is an integrated theory explaining the latitudinal biodiversity gradient, including discrepancies observed at different spatial scales. Analysis of Reef Life Survey data for 4127 marine species at 2406 coral and rocky sites worldwide confirms that the total ecoregion richness peaks in low latitudes, near +15°N and −15°S. However, although richness at survey sites is maximal near the equator for vertebrates, it peaks at high latitudes for large mobile invertebrates. Site richness for different groups is dependent on abundance, which is in turn correlated with temperature for fishes and nutrients for macroinvertebrates. We suggest that temperature-mediated fish predation and herbivory have constrained mobile macroinvertebrate diversity at the site scale across the tropics. Conversely, at the ecoregion scale, richness responds positively to coral reef area, highlighting potentially huge global biodiversity losses with coral decline. Improved conservation outcomes require management frameworks, informed by hierarchical monitoring, that cover differing site- and regional-scale processes across diverse taxa, including attention to invertebrate species, which appear disproportionately threatened by warming seas. |
format | Online Article Text |
id | pubmed-5647131 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-56471312017-10-22 Abundance and local-scale processes contribute to multi-phyla gradients in global marine diversity Edgar, Graham J. Alexander, Timothy J. Lefcheck, Jonathan S. Bates, Amanda E. Kininmonth, Stuart J. Thomson, Russell J. Duffy, J. Emmett Costello, Mark J. Stuart-Smith, Rick D. Sci Adv Research Articles Among the most enduring ecological challenges is an integrated theory explaining the latitudinal biodiversity gradient, including discrepancies observed at different spatial scales. Analysis of Reef Life Survey data for 4127 marine species at 2406 coral and rocky sites worldwide confirms that the total ecoregion richness peaks in low latitudes, near +15°N and −15°S. However, although richness at survey sites is maximal near the equator for vertebrates, it peaks at high latitudes for large mobile invertebrates. Site richness for different groups is dependent on abundance, which is in turn correlated with temperature for fishes and nutrients for macroinvertebrates. We suggest that temperature-mediated fish predation and herbivory have constrained mobile macroinvertebrate diversity at the site scale across the tropics. Conversely, at the ecoregion scale, richness responds positively to coral reef area, highlighting potentially huge global biodiversity losses with coral decline. Improved conservation outcomes require management frameworks, informed by hierarchical monitoring, that cover differing site- and regional-scale processes across diverse taxa, including attention to invertebrate species, which appear disproportionately threatened by warming seas. American Association for the Advancement of Science 2017-10-18 /pmc/articles/PMC5647131/ /pubmed/29057321 http://dx.doi.org/10.1126/sciadv.1700419 Text en Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Research Articles Edgar, Graham J. Alexander, Timothy J. Lefcheck, Jonathan S. Bates, Amanda E. Kininmonth, Stuart J. Thomson, Russell J. Duffy, J. Emmett Costello, Mark J. Stuart-Smith, Rick D. Abundance and local-scale processes contribute to multi-phyla gradients in global marine diversity |
title | Abundance and local-scale processes contribute to multi-phyla gradients in global marine diversity |
title_full | Abundance and local-scale processes contribute to multi-phyla gradients in global marine diversity |
title_fullStr | Abundance and local-scale processes contribute to multi-phyla gradients in global marine diversity |
title_full_unstemmed | Abundance and local-scale processes contribute to multi-phyla gradients in global marine diversity |
title_short | Abundance and local-scale processes contribute to multi-phyla gradients in global marine diversity |
title_sort | abundance and local-scale processes contribute to multi-phyla gradients in global marine diversity |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5647131/ https://www.ncbi.nlm.nih.gov/pubmed/29057321 http://dx.doi.org/10.1126/sciadv.1700419 |
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