Reproductive strategy as a piece of the biogeographic puzzle: a case study using Antarctic sea stars (Echinodermata, Asteroidea)
Aim: To describe and analyse asteroid biogeographic patterns in the Southern Ocean (SO) and test whether reproductive strategy (brooder versus broadcaster) can explain distribution patterns at the scale of the entire class. We hypothesize that brooding and broadcasting species display different biog...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/249408 2023-05-15T13:58:15+02:00 Reproductive strategy as a piece of the biogeographic puzzle: a case study using Antarctic sea stars (Echinodermata, Asteroidea) Moreau, Camille Saucède, Thomas Jossart, Quentin Aguera Garcia, Antonio Brayard, Arnaud Danis, Bruno 2017-04 No full-text files http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/249408 en eng uri/info:doi/10.1111/jbi.12965 uri/info:scp/85013377883 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/249408 Journal of biogeography, 44 (4 Evolution des espèces Ecologie Antarctica benthos biogeographic barrier Echinodermata invertebrate regionalization reproductive mode sea stars Southern Ocean info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2017 ftunivbruxelles 2022-06-12T21:52:12Z Aim: To describe and analyse asteroid biogeographic patterns in the Southern Ocean (SO) and test whether reproductive strategy (brooder versus broadcaster) can explain distribution patterns at the scale of the entire class. We hypothesize that brooding and broadcasting species display different biogeographic patterns. Location: Southern Ocean, south of 45 °S. Methods: Over 14,000 asteroid occurrences are analysed using bootstrapped spanning network (BSN), non-metrical multidimensional scaling (nMDS) and clustering to uncover the spatial structure of faunal similarities among 25 bioregions. Results: Main biogeographic patterns are congruent with previous works based on other taxa and highlight the isolation of New Zealand, the high richness in the Scotia Arc area particularly of brooding species, an East/West Antarctic differentiation, and the faunal affinities between South America and sub-Antarctic Islands. Asteroids show lower endemism levels than previously reported with 29% of species occurring in Antarctica only. In particular, asteroids from Tierra del Fuego showed affinities with those of West Antarctica at the species level, suggesting a recent mixing of assemblages. Biogeographic patterns are highly linked to reproductive strategy. Patterns also differ according to the taxonomic level, revealing the underlying role of historical factors. Main conclusions: Patterns of sea star biogeography are consistent with results obtained for other marine groups and are strongly linked to reproductive strategy. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean West Antarctica Tierra del Fuego DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic Southern Ocean West Antarctica New Zealand |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Evolution des espèces Ecologie Antarctica benthos biogeographic barrier Echinodermata invertebrate regionalization reproductive mode sea stars Southern Ocean |
spellingShingle |
Evolution des espèces Ecologie Antarctica benthos biogeographic barrier Echinodermata invertebrate regionalization reproductive mode sea stars Southern Ocean Moreau, Camille Saucède, Thomas Jossart, Quentin Aguera Garcia, Antonio Brayard, Arnaud Danis, Bruno Reproductive strategy as a piece of the biogeographic puzzle: a case study using Antarctic sea stars (Echinodermata, Asteroidea) |
topic_facet |
Evolution des espèces Ecologie Antarctica benthos biogeographic barrier Echinodermata invertebrate regionalization reproductive mode sea stars Southern Ocean |
description |
Aim: To describe and analyse asteroid biogeographic patterns in the Southern Ocean (SO) and test whether reproductive strategy (brooder versus broadcaster) can explain distribution patterns at the scale of the entire class. We hypothesize that brooding and broadcasting species display different biogeographic patterns. Location: Southern Ocean, south of 45 °S. Methods: Over 14,000 asteroid occurrences are analysed using bootstrapped spanning network (BSN), non-metrical multidimensional scaling (nMDS) and clustering to uncover the spatial structure of faunal similarities among 25 bioregions. Results: Main biogeographic patterns are congruent with previous works based on other taxa and highlight the isolation of New Zealand, the high richness in the Scotia Arc area particularly of brooding species, an East/West Antarctic differentiation, and the faunal affinities between South America and sub-Antarctic Islands. Asteroids show lower endemism levels than previously reported with 29% of species occurring in Antarctica only. In particular, asteroids from Tierra del Fuego showed affinities with those of West Antarctica at the species level, suggesting a recent mixing of assemblages. Biogeographic patterns are highly linked to reproductive strategy. Patterns also differ according to the taxonomic level, revealing the underlying role of historical factors. Main conclusions: Patterns of sea star biogeography are consistent with results obtained for other marine groups and are strongly linked to reproductive strategy. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Moreau, Camille Saucède, Thomas Jossart, Quentin Aguera Garcia, Antonio Brayard, Arnaud Danis, Bruno |
author_facet |
Moreau, Camille Saucède, Thomas Jossart, Quentin Aguera Garcia, Antonio Brayard, Arnaud Danis, Bruno |
author_sort |
Moreau, Camille |
title |
Reproductive strategy as a piece of the biogeographic puzzle: a case study using Antarctic sea stars (Echinodermata, Asteroidea) |
title_short |
Reproductive strategy as a piece of the biogeographic puzzle: a case study using Antarctic sea stars (Echinodermata, Asteroidea) |
title_full |
Reproductive strategy as a piece of the biogeographic puzzle: a case study using Antarctic sea stars (Echinodermata, Asteroidea) |
title_fullStr |
Reproductive strategy as a piece of the biogeographic puzzle: a case study using Antarctic sea stars (Echinodermata, Asteroidea) |
title_full_unstemmed |
Reproductive strategy as a piece of the biogeographic puzzle: a case study using Antarctic sea stars (Echinodermata, Asteroidea) |
title_sort |
reproductive strategy as a piece of the biogeographic puzzle: a case study using antarctic sea stars (echinodermata, asteroidea) |
publishDate |
2017 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/249408 |
geographic |
Antarctic Southern Ocean West Antarctica New Zealand |
geographic_facet |
Antarctic Southern Ocean West Antarctica New Zealand |
genre |
Antarc* Antarctic Antarctica Southern Ocean West Antarctica Tierra del Fuego |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean West Antarctica Tierra del Fuego |
op_source |
Journal of biogeography, 44 (4 |
op_relation |
uri/info:doi/10.1111/jbi.12965 uri/info:scp/85013377883 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/249408 |
_version_ |
1766266442286628864 |