Large-scale distribution analysis of Antarctic echinoids using ecological niche modelling
Understanding the factors that determine the distribution of taxa at various spatial scales is a crucial challenge in the context of global climate change. This holds particularly true for polar marine biota that are composed of both highly adapted and vulnerable faunas. We analysed the distribution...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/132471 2023-05-15T13:53:32+02:00 Large-scale distribution analysis of Antarctic echinoids using ecological niche modelling Pierrat, Benjamin Saucède, Thomas Laffont, Rémi De Ridder, Chantal Festeau, Alain David, Bruno 2012 No full-text files http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/132471 en eng http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/132471 Marine ecology. Progress series, 473 Ecologie [animale] Géologie et minéralogie Géochimie Géologie Biologie des milieux particuliers info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2012 ftunivbruxelles 2022-06-12T21:18:51Z Understanding the factors that determine the distribution of taxa at various spatial scales is a crucial challenge in the context of global climate change. This holds particularly true for polar marine biota that are composed of both highly adapted and vulnerable faunas. We analysed the distribution of 2 Antarctic echinoid species, Sterechinus antarcticus and S. neumayeri, at the scale of the entire Southern Ocean using 2 niche modelling procedures. The performance of distribution models was tested with regard to the known ecology of the species. The respective contributions of environmental parameters are discussed along with the putative roles played by biotic interactions and biogeographic processes. Depth was the parameter that contributed most to both distribution models, whereas sea ice coverage and sea surface temperature had significant contributions for S. neumayeri only. Suitability maps of the 2 species were mostly similar, with a few notable differences. The Campbell Plateau and Tasmania were predicted as suitable areas for S. antarcticus only, while S. neumayeri was restricted to the south of the Antarctic Polar Front. However, numerous sampling data attest that S. antarcticus is absent from the Campbell Plateau and from Tasmania. Different hypotheses are formulated to explain the mismatch between observed and modelled distribution data. They stress the putative roles played by both oceanographic barriers to dispersal (Antarctic Polar Front), biotic factors (species exclusion patterns) and biogeographic processes (ongoing dispersal). info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic antarcticus Sea ice Southern Ocean DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic Campbell Plateau ENVELOPE(171.000,171.000,-50.667,-50.667) Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Ecologie [animale] Géologie et minéralogie Géochimie Géologie Biologie des milieux particuliers |
spellingShingle |
Ecologie [animale] Géologie et minéralogie Géochimie Géologie Biologie des milieux particuliers Pierrat, Benjamin Saucède, Thomas Laffont, Rémi De Ridder, Chantal Festeau, Alain David, Bruno Large-scale distribution analysis of Antarctic echinoids using ecological niche modelling |
topic_facet |
Ecologie [animale] Géologie et minéralogie Géochimie Géologie Biologie des milieux particuliers |
description |
Understanding the factors that determine the distribution of taxa at various spatial scales is a crucial challenge in the context of global climate change. This holds particularly true for polar marine biota that are composed of both highly adapted and vulnerable faunas. We analysed the distribution of 2 Antarctic echinoid species, Sterechinus antarcticus and S. neumayeri, at the scale of the entire Southern Ocean using 2 niche modelling procedures. The performance of distribution models was tested with regard to the known ecology of the species. The respective contributions of environmental parameters are discussed along with the putative roles played by biotic interactions and biogeographic processes. Depth was the parameter that contributed most to both distribution models, whereas sea ice coverage and sea surface temperature had significant contributions for S. neumayeri only. Suitability maps of the 2 species were mostly similar, with a few notable differences. The Campbell Plateau and Tasmania were predicted as suitable areas for S. antarcticus only, while S. neumayeri was restricted to the south of the Antarctic Polar Front. However, numerous sampling data attest that S. antarcticus is absent from the Campbell Plateau and from Tasmania. Different hypotheses are formulated to explain the mismatch between observed and modelled distribution data. They stress the putative roles played by both oceanographic barriers to dispersal (Antarctic Polar Front), biotic factors (species exclusion patterns) and biogeographic processes (ongoing dispersal). info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Pierrat, Benjamin Saucède, Thomas Laffont, Rémi De Ridder, Chantal Festeau, Alain David, Bruno |
author_facet |
Pierrat, Benjamin Saucède, Thomas Laffont, Rémi De Ridder, Chantal Festeau, Alain David, Bruno |
author_sort |
Pierrat, Benjamin |
title |
Large-scale distribution analysis of Antarctic echinoids using ecological niche modelling |
title_short |
Large-scale distribution analysis of Antarctic echinoids using ecological niche modelling |
title_full |
Large-scale distribution analysis of Antarctic echinoids using ecological niche modelling |
title_fullStr |
Large-scale distribution analysis of Antarctic echinoids using ecological niche modelling |
title_full_unstemmed |
Large-scale distribution analysis of Antarctic echinoids using ecological niche modelling |
title_sort |
large-scale distribution analysis of antarctic echinoids using ecological niche modelling |
publishDate |
2012 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/132471 |
long_lat |
ENVELOPE(171.000,171.000,-50.667,-50.667) |
geographic |
Antarctic Campbell Plateau Southern Ocean The Antarctic |
geographic_facet |
Antarctic Campbell Plateau Southern Ocean The Antarctic |
genre |
Antarc* Antarctic antarcticus Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic antarcticus Sea ice Southern Ocean |
op_source |
Marine ecology. Progress series, 473 |
op_relation |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/132471 |
_version_ |
1766258722118565888 |