Dietary niche and the evolution of cranial morphology in birds
Cranial morphology in birds is thought to be shaped by adaptive evolution for foraging performance. This understanding of ecomorphological evolution is supported by observations of avian island radiations, such as Darwin’s finches, which display rapid evolution of skull shape in response to food res...
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ftimperialcol:oai:spiral.imperial.ac.uk:10044/1/68768 2023-05-15T15:34:39+02:00 Dietary niche and the evolution of cranial morphology in birds Felice, RN Tobias, JA Pigot, AL Goswami, A 2019-01-27 http://hdl.handle.net/10044/1/68768 https://doi.org/10.1098/rspb.2018.2677 Royal Society, The Proceedings of the Royal Society B: Biological Sciences © 2019 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. CC-BY 06 Biological Sciences 11 Medical and Health Sciences 07 Agricultural and Veterinary Sciences Journal Article 2019 ftimperialcol https://doi.org/10.1098/rspb.2018.2677 2019-04-11T22:40:52Z Cranial morphology in birds is thought to be shaped by adaptive evolution for foraging performance. This understanding of ecomorphological evolution is supported by observations of avian island radiations, such as Darwin’s finches, which display rapid evolution of skull shape in response to food resource availability and a strong fit between cranial phenotype and trophic ecology. However, a recent analysis of larger clades has suggested that diet is not necessarily a primary driver of cranial shape and that phylogeny and allometry are more significant factors in skull evolution. We use phenome-scale morphometric data across the breadth of extant bird diversity to test the influence of diet and foraging behaviour in shaping cranial evolution. We demonstrate that these trophic characters are significant but very weak predictors of cranial form at this scale. However, dietary groups exhibit significantly different rates of morphological evolution across multiple cranial regions. Granivores and nectarivores exhibit the highest rates of evolution in the face and cranial vault, whereas terrestrial carnivores evolve the slowest. The basisphenoid, occipital, and jaw joint regions have less extreme differences among dietary groups. These patterns demonstrate that dietary niche shapes the tempo and mode of phenotypic evolution in deep time, despite a weaker than expected form–function relationship across large clades. Article in Journal/Newspaper Avian Island Imperial College London: Spiral Avian Island ENVELOPE(-68.891,-68.891,-67.772,-67.772) Proceedings of the Royal Society B: Biological Sciences 286 1897 20182677 |
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Imperial College London: Spiral |
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06 Biological Sciences 11 Medical and Health Sciences 07 Agricultural and Veterinary Sciences |
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06 Biological Sciences 11 Medical and Health Sciences 07 Agricultural and Veterinary Sciences Felice, RN Tobias, JA Pigot, AL Goswami, A Dietary niche and the evolution of cranial morphology in birds |
topic_facet |
06 Biological Sciences 11 Medical and Health Sciences 07 Agricultural and Veterinary Sciences |
description |
Cranial morphology in birds is thought to be shaped by adaptive evolution for foraging performance. This understanding of ecomorphological evolution is supported by observations of avian island radiations, such as Darwin’s finches, which display rapid evolution of skull shape in response to food resource availability and a strong fit between cranial phenotype and trophic ecology. However, a recent analysis of larger clades has suggested that diet is not necessarily a primary driver of cranial shape and that phylogeny and allometry are more significant factors in skull evolution. We use phenome-scale morphometric data across the breadth of extant bird diversity to test the influence of diet and foraging behaviour in shaping cranial evolution. We demonstrate that these trophic characters are significant but very weak predictors of cranial form at this scale. However, dietary groups exhibit significantly different rates of morphological evolution across multiple cranial regions. Granivores and nectarivores exhibit the highest rates of evolution in the face and cranial vault, whereas terrestrial carnivores evolve the slowest. The basisphenoid, occipital, and jaw joint regions have less extreme differences among dietary groups. These patterns demonstrate that dietary niche shapes the tempo and mode of phenotypic evolution in deep time, despite a weaker than expected form–function relationship across large clades. |
format |
Article in Journal/Newspaper |
author |
Felice, RN Tobias, JA Pigot, AL Goswami, A |
author_facet |
Felice, RN Tobias, JA Pigot, AL Goswami, A |
author_sort |
Felice, RN |
title |
Dietary niche and the evolution of cranial morphology in birds |
title_short |
Dietary niche and the evolution of cranial morphology in birds |
title_full |
Dietary niche and the evolution of cranial morphology in birds |
title_fullStr |
Dietary niche and the evolution of cranial morphology in birds |
title_full_unstemmed |
Dietary niche and the evolution of cranial morphology in birds |
title_sort |
dietary niche and the evolution of cranial morphology in birds |
publisher |
Royal Society, The |
publishDate |
2019 |
url |
http://hdl.handle.net/10044/1/68768 https://doi.org/10.1098/rspb.2018.2677 |
long_lat |
ENVELOPE(-68.891,-68.891,-67.772,-67.772) |
geographic |
Avian Island |
geographic_facet |
Avian Island |
genre |
Avian Island |
genre_facet |
Avian Island |
op_relation |
Proceedings of the Royal Society B: Biological Sciences |
op_rights |
© 2019 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rspb.2018.2677 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
286 |
container_issue |
1897 |
container_start_page |
20182677 |
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1766364969141534720 |