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Differences in extinction rates drove modern biogeographic patterns of tropical marine biodiversity

Marine biodiversity in the Coral Triangle is several times higher than anywhere else, but why this is true is unknown because of poor historical data. To address this, we compared the first available record of fossil cheilostome bryozoans from Indonesia with the previously sampled excellent record f...

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Autores principales: Di Martino, Emanuela, Jackson, Jeremy B. C., Taylor, Paul D., Johnson, Kenneth G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5938229/
https://www.ncbi.nlm.nih.gov/pubmed/29740611
http://dx.doi.org/10.1126/sciadv.aaq1508
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author Di Martino, Emanuela
Jackson, Jeremy B. C.
Taylor, Paul D.
Johnson, Kenneth G.
author_facet Di Martino, Emanuela
Jackson, Jeremy B. C.
Taylor, Paul D.
Johnson, Kenneth G.
author_sort Di Martino, Emanuela
collection PubMed
description Marine biodiversity in the Coral Triangle is several times higher than anywhere else, but why this is true is unknown because of poor historical data. To address this, we compared the first available record of fossil cheilostome bryozoans from Indonesia with the previously sampled excellent record from the Caribbean. These two regions differ several-fold in species richness today, but cheilostome diversity was strikingly similar until the end of the Miocene 5.3 million years ago so that the modern disparity must have developed more recently. However, the Miocene faunas were ecologically very different, with a greater proportion of erect and free-living species in the Caribbean compared to the less well-known Coral Triangle. Our results support the hypothesis that modern differences in diversity arose primarily from differential extinction of Caribbean erect and free-living species concomitant with oceanographic changes due to the uplift of the Isthmus of Panama, rather than exceptional rates of diversification in the Indo-Pacific.
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spelling pubmed-59382292018-05-08 Differences in extinction rates drove modern biogeographic patterns of tropical marine biodiversity Di Martino, Emanuela Jackson, Jeremy B. C. Taylor, Paul D. Johnson, Kenneth G. Sci Adv Research Articles Marine biodiversity in the Coral Triangle is several times higher than anywhere else, but why this is true is unknown because of poor historical data. To address this, we compared the first available record of fossil cheilostome bryozoans from Indonesia with the previously sampled excellent record from the Caribbean. These two regions differ several-fold in species richness today, but cheilostome diversity was strikingly similar until the end of the Miocene 5.3 million years ago so that the modern disparity must have developed more recently. However, the Miocene faunas were ecologically very different, with a greater proportion of erect and free-living species in the Caribbean compared to the less well-known Coral Triangle. Our results support the hypothesis that modern differences in diversity arose primarily from differential extinction of Caribbean erect and free-living species concomitant with oceanographic changes due to the uplift of the Isthmus of Panama, rather than exceptional rates of diversification in the Indo-Pacific. American Association for the Advancement of Science 2018-04-04 /pmc/articles/PMC5938229/ /pubmed/29740611 http://dx.doi.org/10.1126/sciadv.aaq1508 Text en Copyright © 2018 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
Di Martino, Emanuela
Jackson, Jeremy B. C.
Taylor, Paul D.
Johnson, Kenneth G.
Differences in extinction rates drove modern biogeographic patterns of tropical marine biodiversity
title Differences in extinction rates drove modern biogeographic patterns of tropical marine biodiversity
title_full Differences in extinction rates drove modern biogeographic patterns of tropical marine biodiversity
title_fullStr Differences in extinction rates drove modern biogeographic patterns of tropical marine biodiversity
title_full_unstemmed Differences in extinction rates drove modern biogeographic patterns of tropical marine biodiversity
title_short Differences in extinction rates drove modern biogeographic patterns of tropical marine biodiversity
title_sort differences in extinction rates drove modern biogeographic patterns of tropical marine biodiversity
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5938229/
https://www.ncbi.nlm.nih.gov/pubmed/29740611
http://dx.doi.org/10.1126/sciadv.aaq1508
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