Omnivory in birds is a macroevolutionary sink
Diet is commonly assumed to affect the evolution of species, but few studies have directly tested its effect at macroevolutionary scales. Here we use Bayesian models of trait-dependent diversification and a comprehensive dietary database of all birds worldwide to assess speciation and extinction dyn...
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| Format: | Online |
| Language: | English |
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Nature Publishing Group
2016
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4829659/ |
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pubmed-48296592016-04-22 Omnivory in birds is a macroevolutionary sink Burin, Gustavo Kissling, W. Daniel Guimarães, Paulo R. Şekercioğlu, Çağan H. Quental, Tiago B. Article Diet is commonly assumed to affect the evolution of species, but few studies have directly tested its effect at macroevolutionary scales. Here we use Bayesian models of trait-dependent diversification and a comprehensive dietary database of all birds worldwide to assess speciation and extinction dynamics of avian dietary guilds (carnivores, frugivores, granivores, herbivores, insectivores, nectarivores, omnivores and piscivores). Our results suggest that omnivory is associated with higher extinction rates and lower speciation rates than other guilds, and that overall net diversification is negative. Trait-dependent models, dietary similarity and network analyses show that transitions into omnivory occur at higher rates than into any other guild. We suggest that omnivory acts as macroevolutionary sink, where its ephemeral nature is retrieved through transitions from other guilds rather than from omnivore speciation. We propose that these dynamics result from competition within and among dietary guilds, influenced by the deep-time availability and predictability of food resources. Nature Publishing Group 2016-04-07 /pmc/articles/PMC4829659/ /pubmed/27052750 http://dx.doi.org/10.1038/ncomms11250 Text en Copyright © 2016, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| repository_type |
Open Access Journal |
| institution_category |
Foreign Institution |
| institution |
US National Center for Biotechnology Information |
| building |
NCBI PubMed |
| collection |
Online Access |
| language |
English |
| format |
Online |
| author |
Burin, Gustavo Kissling, W. Daniel Guimarães, Paulo R. Şekercioğlu, Çağan H. Quental, Tiago B. |
| spellingShingle |
Burin, Gustavo Kissling, W. Daniel Guimarães, Paulo R. Şekercioğlu, Çağan H. Quental, Tiago B. Omnivory in birds is a macroevolutionary sink |
| author_facet |
Burin, Gustavo Kissling, W. Daniel Guimarães, Paulo R. Şekercioğlu, Çağan H. Quental, Tiago B. |
| author_sort |
Burin, Gustavo |
| title |
Omnivory in birds is a macroevolutionary sink |
| title_short |
Omnivory in birds is a macroevolutionary sink |
| title_full |
Omnivory in birds is a macroevolutionary sink |
| title_fullStr |
Omnivory in birds is a macroevolutionary sink |
| title_full_unstemmed |
Omnivory in birds is a macroevolutionary sink |
| title_sort |
omnivory in birds is a macroevolutionary sink |
| description |
Diet is commonly assumed to affect the evolution of species, but few studies have directly tested its effect at macroevolutionary scales. Here we use Bayesian models of trait-dependent diversification and a comprehensive dietary database of all birds worldwide to assess speciation and extinction dynamics of avian dietary guilds (carnivores, frugivores, granivores, herbivores, insectivores, nectarivores, omnivores and piscivores). Our results suggest that omnivory is associated with higher extinction rates and lower speciation rates than other guilds, and that overall net diversification is negative. Trait-dependent models, dietary similarity and network analyses show that transitions into omnivory occur at higher rates than into any other guild. We suggest that omnivory acts as macroevolutionary sink, where its ephemeral nature is retrieved through transitions from other guilds rather than from omnivore speciation. We propose that these dynamics result from competition within and among dietary guilds, influenced by the deep-time availability and predictability of food resources. |
| publisher |
Nature Publishing Group |
| publishDate |
2016 |
| url |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4829659/ |
| _version_ |
1613565457021796352 |