Seven snail species hidden in one: Biogeographic diversity in an apparently widespread periwinkle in the Southern Ocean
Abstract Aim The Antarctic Circumpolar Current imparts significant structure to the Southern Ocean biota. The Antarctic Polar Front is a major barrier to dispersal, with separate species (or sometimes intraspecific clades) normally occurring either side of this feature. We examined the biogeographic...
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Online Access: | http://dx.doi.org/10.1111/jbi.14453 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.14453 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jbi.14453 |
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crwiley:10.1111/jbi.14453 2024-09-15T17:46:50+00:00 Seven snail species hidden in one: Biogeographic diversity in an apparently widespread periwinkle in the Southern Ocean González‐Wevar, Claudio A. Segovia, Nicolás I. Rosenfeld, Sebastián Maturana, Claudia S. Jeldres, Vanessa Pinochet, Ramona Saucède, Thomas Morley, Simon A. Brickle, Paul Wilson, Nerida G. Spencer, Hamish G. Poulin, Elie British Antarctic Survey Institut Polaire Français Paul Emile Victor Ferring ACE Foundation Universidad de Magallanes 2022 http://dx.doi.org/10.1111/jbi.14453 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.14453 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jbi.14453 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Biogeography volume 49, issue 8, page 1521-1534 ISSN 0305-0270 1365-2699 journal-article 2022 crwiley https://doi.org/10.1111/jbi.14453 2024-07-30T04:22:15Z Abstract Aim The Antarctic Circumpolar Current imparts significant structure to the Southern Ocean biota. The Antarctic Polar Front is a major barrier to dispersal, with separate species (or sometimes intraspecific clades) normally occurring either side of this feature. We examined the biogeographic structure of an apparent exception to this rule in a widespread genus of the Southern Ocean, the periwinkle snail, Laevilitorina. Location Southern Ocean. Taxon Littorinidae, Laevilitorininae, Laevilitorina . Methods Using 750 specimens from 16 Southern Ocean Laevilitorina populations across >8000 km, we analysed mitochondrial COI and nuclear 28S sequences to uncover the evolutionary history of these marine near‐shore snails. We utilized multi‐locus phylogenetic reconstructions, species‐delimitation analyses, divergence‐time estimations and geometric morphometrics. Results Molecular data revealed that the widespread nominal species L. caliginosa comprises seven species‐level clades, all supported by morphological data, whereas the Antarctic nominal species L. antarctica , L. claviformis and L. umbilicata are conspecific. Six “ caliginosa ” clades are restricted to southern South America, but one lineage extends from Antarctica to distant sub‐Antarctic islands on both sides of the APF. Geometric morphometrics also identified significant differences among these clades, but uncoupled from genetic differentiation. Main conclusions The apparent trans‐APF distribution of the poorly dispersing Laevilitorina caliginosa is largely illusory: this taxon consists of at least seven discrete species, only one of which has a trans‐APF distribution. Similar to most Laevilitorina species, the remaining six “ caliginosa ” clades are narrow endemics. Biogeographical patterns in Laevilitorina reflect the role of vicariance associated with geological processes together with recent long‐distance dispersal events. Laevilitorina originated near the Eocene/Oligocene boundary and diversified during the Miocene and the Pliocene. ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Wiley Online Library Journal of Biogeography 49 8 1521 1534 |
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Wiley Online Library |
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language |
English |
description |
Abstract Aim The Antarctic Circumpolar Current imparts significant structure to the Southern Ocean biota. The Antarctic Polar Front is a major barrier to dispersal, with separate species (or sometimes intraspecific clades) normally occurring either side of this feature. We examined the biogeographic structure of an apparent exception to this rule in a widespread genus of the Southern Ocean, the periwinkle snail, Laevilitorina. Location Southern Ocean. Taxon Littorinidae, Laevilitorininae, Laevilitorina . Methods Using 750 specimens from 16 Southern Ocean Laevilitorina populations across >8000 km, we analysed mitochondrial COI and nuclear 28S sequences to uncover the evolutionary history of these marine near‐shore snails. We utilized multi‐locus phylogenetic reconstructions, species‐delimitation analyses, divergence‐time estimations and geometric morphometrics. Results Molecular data revealed that the widespread nominal species L. caliginosa comprises seven species‐level clades, all supported by morphological data, whereas the Antarctic nominal species L. antarctica , L. claviformis and L. umbilicata are conspecific. Six “ caliginosa ” clades are restricted to southern South America, but one lineage extends from Antarctica to distant sub‐Antarctic islands on both sides of the APF. Geometric morphometrics also identified significant differences among these clades, but uncoupled from genetic differentiation. Main conclusions The apparent trans‐APF distribution of the poorly dispersing Laevilitorina caliginosa is largely illusory: this taxon consists of at least seven discrete species, only one of which has a trans‐APF distribution. Similar to most Laevilitorina species, the remaining six “ caliginosa ” clades are narrow endemics. Biogeographical patterns in Laevilitorina reflect the role of vicariance associated with geological processes together with recent long‐distance dispersal events. Laevilitorina originated near the Eocene/Oligocene boundary and diversified during the Miocene and the Pliocene. ... |
author2 |
British Antarctic Survey Institut Polaire Français Paul Emile Victor Ferring ACE Foundation Universidad de Magallanes |
format |
Article in Journal/Newspaper |
author |
González‐Wevar, Claudio A. Segovia, Nicolás I. Rosenfeld, Sebastián Maturana, Claudia S. Jeldres, Vanessa Pinochet, Ramona Saucède, Thomas Morley, Simon A. Brickle, Paul Wilson, Nerida G. Spencer, Hamish G. Poulin, Elie |
spellingShingle |
González‐Wevar, Claudio A. Segovia, Nicolás I. Rosenfeld, Sebastián Maturana, Claudia S. Jeldres, Vanessa Pinochet, Ramona Saucède, Thomas Morley, Simon A. Brickle, Paul Wilson, Nerida G. Spencer, Hamish G. Poulin, Elie Seven snail species hidden in one: Biogeographic diversity in an apparently widespread periwinkle in the Southern Ocean |
author_facet |
González‐Wevar, Claudio A. Segovia, Nicolás I. Rosenfeld, Sebastián Maturana, Claudia S. Jeldres, Vanessa Pinochet, Ramona Saucède, Thomas Morley, Simon A. Brickle, Paul Wilson, Nerida G. Spencer, Hamish G. Poulin, Elie |
author_sort |
González‐Wevar, Claudio A. |
title |
Seven snail species hidden in one: Biogeographic diversity in an apparently widespread periwinkle in the Southern Ocean |
title_short |
Seven snail species hidden in one: Biogeographic diversity in an apparently widespread periwinkle in the Southern Ocean |
title_full |
Seven snail species hidden in one: Biogeographic diversity in an apparently widespread periwinkle in the Southern Ocean |
title_fullStr |
Seven snail species hidden in one: Biogeographic diversity in an apparently widespread periwinkle in the Southern Ocean |
title_full_unstemmed |
Seven snail species hidden in one: Biogeographic diversity in an apparently widespread periwinkle in the Southern Ocean |
title_sort |
seven snail species hidden in one: biogeographic diversity in an apparently widespread periwinkle in the southern ocean |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1111/jbi.14453 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.14453 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jbi.14453 |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
Journal of Biogeography volume 49, issue 8, page 1521-1534 ISSN 0305-0270 1365-2699 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jbi.14453 |
container_title |
Journal of Biogeography |
container_volume |
49 |
container_issue |
8 |
container_start_page |
1521 |
op_container_end_page |
1534 |
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1810495244643336192 |