Diet and diversification in the evolution of coral reef fishes.

The disparity in species richness among evolutionary lineages is one of the oldest and most intriguing issues in evolutionary biology. Although geographical factors have been traditionally thought to promote speciation, recent studies have underscored the importance of ecological interactions as one...

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Autores principales:	Fabio L Lobato, Diego R Barneche, Alexandre C Siqueira, Ana M R Liedke, Alberto Lindner, Marcio R Pie, David R Bellwood, Sergio R Floeter
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e93b2b2cd6cf4e62babe445c1089af02
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spelling	oai:doaj.org-article:e93b2b2cd6cf4e62babe445c1089af022021-11-25T06:08:18ZDiet and diversification in the evolution of coral reef fishes.1932-620310.1371/journal.pone.0102094https://doaj.org/article/e93b2b2cd6cf4e62babe445c1089af022014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25029229/?tool=EBIhttps://doaj.org/toc/1932-6203The disparity in species richness among evolutionary lineages is one of the oldest and most intriguing issues in evolutionary biology. Although geographical factors have been traditionally thought to promote speciation, recent studies have underscored the importance of ecological interactions as one of the main drivers of diversification. Here, we test if differences in species richness of closely related lineages match predictions based on the concept of density-dependent diversification. As radiation progresses, ecological niche-space would become increasingly saturated, resulting in fewer opportunities for speciation. To assess this hypothesis, we tested whether reef fish niche shifts toward usage of low-quality food resources (i.e. relatively low energy/protein per unit mass), such as algae, detritus, sponges and corals are accompanied by rapid net diversification. Using available molecular information, we reconstructed phylogenies of four major reef fish clades (Acanthuroidei, Chaetodontidae, Labridae and Pomacentridae) to estimate the timing of radiations of their subclades. We found that the evolution of species-rich clades was associated with a switch to low quality food in three of the four clades analyzed, which is consistent with a density-dependent model of diversification. We suggest that ecological opportunity may play an important role in understanding the diversification of reef-fish lineages.Fabio L LobatoDiego R BarnecheAlexandre C SiqueiraAna M R LiedkeAlberto LindnerMarcio R PieDavid R BellwoodSergio R FloeterPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 7, p e102094 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fabio L Lobato Diego R Barneche Alexandre C Siqueira Ana M R Liedke Alberto Lindner Marcio R Pie David R Bellwood Sergio R Floeter Diet and diversification in the evolution of coral reef fishes.
description	The disparity in species richness among evolutionary lineages is one of the oldest and most intriguing issues in evolutionary biology. Although geographical factors have been traditionally thought to promote speciation, recent studies have underscored the importance of ecological interactions as one of the main drivers of diversification. Here, we test if differences in species richness of closely related lineages match predictions based on the concept of density-dependent diversification. As radiation progresses, ecological niche-space would become increasingly saturated, resulting in fewer opportunities for speciation. To assess this hypothesis, we tested whether reef fish niche shifts toward usage of low-quality food resources (i.e. relatively low energy/protein per unit mass), such as algae, detritus, sponges and corals are accompanied by rapid net diversification. Using available molecular information, we reconstructed phylogenies of four major reef fish clades (Acanthuroidei, Chaetodontidae, Labridae and Pomacentridae) to estimate the timing of radiations of their subclades. We found that the evolution of species-rich clades was associated with a switch to low quality food in three of the four clades analyzed, which is consistent with a density-dependent model of diversification. We suggest that ecological opportunity may play an important role in understanding the diversification of reef-fish lineages.
format	article
author	Fabio L Lobato Diego R Barneche Alexandre C Siqueira Ana M R Liedke Alberto Lindner Marcio R Pie David R Bellwood Sergio R Floeter
author_facet	Fabio L Lobato Diego R Barneche Alexandre C Siqueira Ana M R Liedke Alberto Lindner Marcio R Pie David R Bellwood Sergio R Floeter
author_sort	Fabio L Lobato
title	Diet and diversification in the evolution of coral reef fishes.
title_short	Diet and diversification in the evolution of coral reef fishes.
title_full	Diet and diversification in the evolution of coral reef fishes.
title_fullStr	Diet and diversification in the evolution of coral reef fishes.
title_full_unstemmed	Diet and diversification in the evolution of coral reef fishes.
title_sort	diet and diversification in the evolution of coral reef fishes.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/e93b2b2cd6cf4e62babe445c1089af02
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Diet and diversification in the evolution of coral reef fishes.

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