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Shark mandible evolution reveals patterns of trophic and habitat-mediated diversification
Environmental controls of species diversity represent a central research focus in evolutionary biology. In the marine realm, sharks are widely distributed, occupying mainly higher trophic levels and varied dietary preferences, mirrored by several morphological traits and behaviours. Recent comparati...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10167336/ https://www.ncbi.nlm.nih.gov/pubmed/37156994 http://dx.doi.org/10.1038/s42003-023-04882-3 |
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author | López-Romero, Faviel A. Stumpf, Sebastian Kamminga, Pepijn Böhmer, Christine Pradel, Alan Brazeau, Martin D. Kriwet, Jürgen |
author_facet | López-Romero, Faviel A. Stumpf, Sebastian Kamminga, Pepijn Böhmer, Christine Pradel, Alan Brazeau, Martin D. Kriwet, Jürgen |
author_sort | López-Romero, Faviel A. |
collection | PubMed |
description | Environmental controls of species diversity represent a central research focus in evolutionary biology. In the marine realm, sharks are widely distributed, occupying mainly higher trophic levels and varied dietary preferences, mirrored by several morphological traits and behaviours. Recent comparative phylogenetic studies revealed that sharks present a fairly uneven diversification across habitats, from reefs to deep-water. We show preliminary evidence that morphological diversification (disparity) in the feeding system (mandibles) follows these patterns, and we tested hypotheses linking these patterns to morphological specialisation. We conducted a 3D geometric morphometric analysis and phylogenetic comparative methods on 145 specimens representing 90 extant shark species using computed tomography models. We explored how rates of morphological evolution in the jaw correlate with habitat, size, diet, trophic level, and taxonomic order. Our findings show a relationship between disparity and environment, with higher rates of morphological evolution in reef and deep-water habitats. Deep-water species display highly divergent morphologies compared to other sharks. Strikingly, evolutionary rates of jaw disparity are associated with diversification in deep water, but not in reefs. The environmental heterogeneity of the offshore water column exposes the importance of this parameter as a driver of diversification at least in the early part of clade history. |
format | Online Article Text |
id | pubmed-10167336 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-101673362023-05-10 Shark mandible evolution reveals patterns of trophic and habitat-mediated diversification López-Romero, Faviel A. Stumpf, Sebastian Kamminga, Pepijn Böhmer, Christine Pradel, Alan Brazeau, Martin D. Kriwet, Jürgen Commun Biol Article Environmental controls of species diversity represent a central research focus in evolutionary biology. In the marine realm, sharks are widely distributed, occupying mainly higher trophic levels and varied dietary preferences, mirrored by several morphological traits and behaviours. Recent comparative phylogenetic studies revealed that sharks present a fairly uneven diversification across habitats, from reefs to deep-water. We show preliminary evidence that morphological diversification (disparity) in the feeding system (mandibles) follows these patterns, and we tested hypotheses linking these patterns to morphological specialisation. We conducted a 3D geometric morphometric analysis and phylogenetic comparative methods on 145 specimens representing 90 extant shark species using computed tomography models. We explored how rates of morphological evolution in the jaw correlate with habitat, size, diet, trophic level, and taxonomic order. Our findings show a relationship between disparity and environment, with higher rates of morphological evolution in reef and deep-water habitats. Deep-water species display highly divergent morphologies compared to other sharks. Strikingly, evolutionary rates of jaw disparity are associated with diversification in deep water, but not in reefs. The environmental heterogeneity of the offshore water column exposes the importance of this parameter as a driver of diversification at least in the early part of clade history. Nature Publishing Group UK 2023-05-08 /pmc/articles/PMC10167336/ /pubmed/37156994 http://dx.doi.org/10.1038/s42003-023-04882-3 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article López-Romero, Faviel A. Stumpf, Sebastian Kamminga, Pepijn Böhmer, Christine Pradel, Alan Brazeau, Martin D. Kriwet, Jürgen Shark mandible evolution reveals patterns of trophic and habitat-mediated diversification |
title | Shark mandible evolution reveals patterns of trophic and habitat-mediated diversification |
title_full | Shark mandible evolution reveals patterns of trophic and habitat-mediated diversification |
title_fullStr | Shark mandible evolution reveals patterns of trophic and habitat-mediated diversification |
title_full_unstemmed | Shark mandible evolution reveals patterns of trophic and habitat-mediated diversification |
title_short | Shark mandible evolution reveals patterns of trophic and habitat-mediated diversification |
title_sort | shark mandible evolution reveals patterns of trophic and habitat-mediated diversification |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10167336/ https://www.ncbi.nlm.nih.gov/pubmed/37156994 http://dx.doi.org/10.1038/s42003-023-04882-3 |
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