Vertebral morphology in extant porpoises: Radiation and functional implications
Abstract Vertebral morphology has profound biomechanical implications and plays an important role in adaptation to different habitats and foraging strategies for cetaceans. Extant porpoise species (Phocoenidae) display analogous evolutionary patterns in both hemispheres associated with convergent ev...
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crwiley:10.1002/jmor.21441 2024-09-15T18:17:20+00:00 Vertebral morphology in extant porpoises: Radiation and functional implications Marchesi, María Constanza Galatius, Anders Zaffino, Martina Coscarella, Mariano Alberto González‐José, Rolando Smithsonian Institution 2022 http://dx.doi.org/10.1002/jmor.21441 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jmor.21441 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jmor.21441 https://onlinelibrary.wiley.com/doi/am-pdf/10.1002/jmor.21441 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Morphology volume 283, issue 3, page 273-286 ISSN 0362-2525 1097-4687 journal-article 2022 crwiley https://doi.org/10.1002/jmor.21441 2024-09-05T05:03:55Z Abstract Vertebral morphology has profound biomechanical implications and plays an important role in adaptation to different habitats and foraging strategies for cetaceans. Extant porpoise species (Phocoenidae) display analogous evolutionary patterns in both hemispheres associated with convergent evolution to coastal versus oceanic environments. We employed 3D geometric morphometrics to study vertebral morphology in five porpoise species with contrasting habitats: the coastal Indo‐Pacific finless porpoise ( Neophocaena phocaenoides ); the mostly coastal harbor porpoise ( Phocoena phocoena ) and Burmeister's porpoise ( Phocoena spinipinnis ); and the oceanic spectacled porpoise ( Phocoena dioptrica ) and Dall's porpoise ( Phocoenoides dalli ). We evaluated the radiation of vertebral morphology, both in size and shape, using multivariate statistics. We supplemented data with samples of an early‐radiating delphinoid species, the narwhal ( Monodon monoceros ); and an early‐radiating delphinid species, the white‐beaked dolphin ( Lagenorhynchus albirostris ). Principal component analyses were used to map shape variation onto phylogenies, and phylogenetic constraints were investigated through permutation tests. We established links between vertebral morphology and movement patterns through biomechanical inferences from morphological presentations. We evidenced divergence in size between species with contrasting habitats, with coastal species tending to decrease in size from their estimated ancestral state, and oceanic species tending to increase in size. Regarding vertebral shape, coastal species had longer centra and shorter neural processes, but longer transverse processes, while oceanic species tended to have disk‐shaped vertebrae with longer neural processes. Within Phocoenidae, the absence of phylogenetic constraints in vertebral morphology suggests a high level of evolutionary lability. Overall, our results are in accordance with the hypothesis of speciation within the family from a coastal ancestor, through ... Article in Journal/Newspaper Lagenorhynchus albirostris Monodon monoceros narwhal* Phocoena dioptrica Phocoena phocoena Spectacled porpoise White-beaked dolphin Wiley Online Library Journal of Morphology 283 3 273 286 |
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Wiley Online Library |
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English |
description |
Abstract Vertebral morphology has profound biomechanical implications and plays an important role in adaptation to different habitats and foraging strategies for cetaceans. Extant porpoise species (Phocoenidae) display analogous evolutionary patterns in both hemispheres associated with convergent evolution to coastal versus oceanic environments. We employed 3D geometric morphometrics to study vertebral morphology in five porpoise species with contrasting habitats: the coastal Indo‐Pacific finless porpoise ( Neophocaena phocaenoides ); the mostly coastal harbor porpoise ( Phocoena phocoena ) and Burmeister's porpoise ( Phocoena spinipinnis ); and the oceanic spectacled porpoise ( Phocoena dioptrica ) and Dall's porpoise ( Phocoenoides dalli ). We evaluated the radiation of vertebral morphology, both in size and shape, using multivariate statistics. We supplemented data with samples of an early‐radiating delphinoid species, the narwhal ( Monodon monoceros ); and an early‐radiating delphinid species, the white‐beaked dolphin ( Lagenorhynchus albirostris ). Principal component analyses were used to map shape variation onto phylogenies, and phylogenetic constraints were investigated through permutation tests. We established links between vertebral morphology and movement patterns through biomechanical inferences from morphological presentations. We evidenced divergence in size between species with contrasting habitats, with coastal species tending to decrease in size from their estimated ancestral state, and oceanic species tending to increase in size. Regarding vertebral shape, coastal species had longer centra and shorter neural processes, but longer transverse processes, while oceanic species tended to have disk‐shaped vertebrae with longer neural processes. Within Phocoenidae, the absence of phylogenetic constraints in vertebral morphology suggests a high level of evolutionary lability. Overall, our results are in accordance with the hypothesis of speciation within the family from a coastal ancestor, through ... |
author2 |
Smithsonian Institution |
format |
Article in Journal/Newspaper |
author |
Marchesi, María Constanza Galatius, Anders Zaffino, Martina Coscarella, Mariano Alberto González‐José, Rolando |
spellingShingle |
Marchesi, María Constanza Galatius, Anders Zaffino, Martina Coscarella, Mariano Alberto González‐José, Rolando Vertebral morphology in extant porpoises: Radiation and functional implications |
author_facet |
Marchesi, María Constanza Galatius, Anders Zaffino, Martina Coscarella, Mariano Alberto González‐José, Rolando |
author_sort |
Marchesi, María Constanza |
title |
Vertebral morphology in extant porpoises: Radiation and functional implications |
title_short |
Vertebral morphology in extant porpoises: Radiation and functional implications |
title_full |
Vertebral morphology in extant porpoises: Radiation and functional implications |
title_fullStr |
Vertebral morphology in extant porpoises: Radiation and functional implications |
title_full_unstemmed |
Vertebral morphology in extant porpoises: Radiation and functional implications |
title_sort |
vertebral morphology in extant porpoises: radiation and functional implications |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/jmor.21441 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jmor.21441 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jmor.21441 https://onlinelibrary.wiley.com/doi/am-pdf/10.1002/jmor.21441 |
genre |
Lagenorhynchus albirostris Monodon monoceros narwhal* Phocoena dioptrica Phocoena phocoena Spectacled porpoise White-beaked dolphin |
genre_facet |
Lagenorhynchus albirostris Monodon monoceros narwhal* Phocoena dioptrica Phocoena phocoena Spectacled porpoise White-beaked dolphin |
op_source |
Journal of Morphology volume 283, issue 3, page 273-286 ISSN 0362-2525 1097-4687 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jmor.21441 |
container_title |
Journal of Morphology |
container_volume |
283 |
container_issue |
3 |
container_start_page |
273 |
op_container_end_page |
286 |
_version_ |
1810455345918640128 |