Moss-inhabiting diatom communities from Ile Amsterdam (TAAF, southern Indian Ocean)
International audience Background and aims - Despite the ongoing taxonomical revision of the entire (sub)-Antarctic diatom flora, our knowledge on the ecology and community associations of moss-inhabiting diatoms is still rather limited. In the present study, our research aim was to survey the diver...
Published in: | Plant Ecology and Evolution |
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Online Access: | https://doi.org/10.5091/plecevo.2021.1767 https://hal.archives-ouvertes.fr/hal-03216897/file/hal-03216897.pdf https://hal.archives-ouvertes.fr/hal-03216897 |
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fttriple:oai:gotriple.eu:10670/1.uovi7q 2023-05-15T13:35:24+02:00 Moss-inhabiting diatom communities from Ile Amsterdam (TAAF, southern Indian Ocean) Chattova, Barbora Lebouvier, Marc Syrovatka, Vit Van De Vijver, Bart Masaryk University Brno (MUNI) Ecosystèmes, biodiversité, évolution Rennes (ECOBIO) Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES) University of Antwerp (UA) Botanic Garden Meise French Polar Institute IPEV 136 ERASMUS scholarship 2021-01-01 https://doi.org/10.5091/plecevo.2021.1767 https://hal.archives-ouvertes.fr/hal-03216897/file/hal-03216897.pdf https://hal.archives-ouvertes.fr/hal-03216897 en eng HAL CCSD Botanic Garden Meise and Royal Botanical Society of Belgium hal-03216897 doi:10.5091/plecevo.2021.1767 10670/1.uovi7q https://hal.archives-ouvertes.fr/hal-03216897/file/hal-03216897.pdf https://hal.archives-ouvertes.fr/hal-03216897 other Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 2032-3913 EISSN: 2032-3921 Plant Ecology and Evolution Plant Ecology and Evolution, Botanic Garden Meise and Royal Botanical Society of Belgium, 2021, 154 (1), pp.63-79. ⟨10.5091/plecevo.2021.1767⟩ Bacillariophyta diatoms ecology mosses Ile Amsterdam southern Indian Ocean sub-Antarctic region geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.5091/plecevo.2021.1767 2023-01-22T16:40:22Z International audience Background and aims - Despite the ongoing taxonomical revision of the entire (sub)-Antarctic diatom flora, our knowledge on the ecology and community associations of moss-inhabiting diatoms is still rather limited. In the present study, our research aim was to survey the diversity together with the environmental factors structuring the epiphytic moss diatom communities on Ile Amsterdam (TAAF), a small volcanic island in the southern Indian Ocean. Material and methods - A morphology-based dataset and (physico)chemical measurements were used for the ecological and biogeographical analysis of moss-inhabiting diatom flora from Ile Amsterdam. In total, 148 moss samples were examined using light microscopy. Key results - The analysis revealed the presence of 125 diatom taxa belonging to 38 genera. The uniqueness of the Ile Amsterdam diatom flora is mainly reflected by the species composition of the dominant genera Pinnularia, Nitzschia, Humidophila, and Luticola, with a large number of unknown and often new species. This highly specific diatom flora, together with differences in the habitats sampled and the isolated position of the island, resulted in very low similarity values between Ile Amsterdam and the other islands of the Southern Ocean. From a biogeographical point of view, 40% of the taxa have a typical cosmopolitan distribution, whereas 22% of all observed species can be considered endemic to Ile Amsterdam, with another 17% species showing a restricted sub-Antarctic distribution. The NMDS analysis, based on a cluster dendrogram, divides the samples into six main groups. For each group, indicator species were determined. Both environmental data and diatom distributions indicate that apart from elevation, specific conductance, pH, and moisture are the major factors determining the structure of moss-inhabiting diatom communities on Ile Amsterdam. Conclusion - The isolated geographic position and unique climatological and geological features of the island shaped the presence of a unique ... Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Unknown Antarctic Indian Southern Ocean Plant Ecology and Evolution 154 1 63 79 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Bacillariophyta diatoms ecology mosses Ile Amsterdam southern Indian Ocean sub-Antarctic region geo envir |
spellingShingle |
Bacillariophyta diatoms ecology mosses Ile Amsterdam southern Indian Ocean sub-Antarctic region geo envir Chattova, Barbora Lebouvier, Marc Syrovatka, Vit Van De Vijver, Bart Moss-inhabiting diatom communities from Ile Amsterdam (TAAF, southern Indian Ocean) |
topic_facet |
Bacillariophyta diatoms ecology mosses Ile Amsterdam southern Indian Ocean sub-Antarctic region geo envir |
description |
International audience Background and aims - Despite the ongoing taxonomical revision of the entire (sub)-Antarctic diatom flora, our knowledge on the ecology and community associations of moss-inhabiting diatoms is still rather limited. In the present study, our research aim was to survey the diversity together with the environmental factors structuring the epiphytic moss diatom communities on Ile Amsterdam (TAAF), a small volcanic island in the southern Indian Ocean. Material and methods - A morphology-based dataset and (physico)chemical measurements were used for the ecological and biogeographical analysis of moss-inhabiting diatom flora from Ile Amsterdam. In total, 148 moss samples were examined using light microscopy. Key results - The analysis revealed the presence of 125 diatom taxa belonging to 38 genera. The uniqueness of the Ile Amsterdam diatom flora is mainly reflected by the species composition of the dominant genera Pinnularia, Nitzschia, Humidophila, and Luticola, with a large number of unknown and often new species. This highly specific diatom flora, together with differences in the habitats sampled and the isolated position of the island, resulted in very low similarity values between Ile Amsterdam and the other islands of the Southern Ocean. From a biogeographical point of view, 40% of the taxa have a typical cosmopolitan distribution, whereas 22% of all observed species can be considered endemic to Ile Amsterdam, with another 17% species showing a restricted sub-Antarctic distribution. The NMDS analysis, based on a cluster dendrogram, divides the samples into six main groups. For each group, indicator species were determined. Both environmental data and diatom distributions indicate that apart from elevation, specific conductance, pH, and moisture are the major factors determining the structure of moss-inhabiting diatom communities on Ile Amsterdam. Conclusion - The isolated geographic position and unique climatological and geological features of the island shaped the presence of a unique ... |
author2 |
Masaryk University Brno (MUNI) Ecosystèmes, biodiversité, évolution Rennes (ECOBIO) Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES) University of Antwerp (UA) Botanic Garden Meise French Polar Institute IPEV 136 ERASMUS scholarship |
format |
Article in Journal/Newspaper |
author |
Chattova, Barbora Lebouvier, Marc Syrovatka, Vit Van De Vijver, Bart |
author_facet |
Chattova, Barbora Lebouvier, Marc Syrovatka, Vit Van De Vijver, Bart |
author_sort |
Chattova, Barbora |
title |
Moss-inhabiting diatom communities from Ile Amsterdam (TAAF, southern Indian Ocean) |
title_short |
Moss-inhabiting diatom communities from Ile Amsterdam (TAAF, southern Indian Ocean) |
title_full |
Moss-inhabiting diatom communities from Ile Amsterdam (TAAF, southern Indian Ocean) |
title_fullStr |
Moss-inhabiting diatom communities from Ile Amsterdam (TAAF, southern Indian Ocean) |
title_full_unstemmed |
Moss-inhabiting diatom communities from Ile Amsterdam (TAAF, southern Indian Ocean) |
title_sort |
moss-inhabiting diatom communities from ile amsterdam (taaf, southern indian ocean) |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://doi.org/10.5091/plecevo.2021.1767 https://hal.archives-ouvertes.fr/hal-03216897/file/hal-03216897.pdf https://hal.archives-ouvertes.fr/hal-03216897 |
geographic |
Antarctic Indian Southern Ocean |
geographic_facet |
Antarctic Indian Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 2032-3913 EISSN: 2032-3921 Plant Ecology and Evolution Plant Ecology and Evolution, Botanic Garden Meise and Royal Botanical Society of Belgium, 2021, 154 (1), pp.63-79. ⟨10.5091/plecevo.2021.1767⟩ |
op_relation |
hal-03216897 doi:10.5091/plecevo.2021.1767 10670/1.uovi7q https://hal.archives-ouvertes.fr/hal-03216897/file/hal-03216897.pdf https://hal.archives-ouvertes.fr/hal-03216897 |
op_rights |
other |
op_doi |
https://doi.org/10.5091/plecevo.2021.1767 |
container_title |
Plant Ecology and Evolution |
container_volume |
154 |
container_issue |
1 |
container_start_page |
63 |
op_container_end_page |
79 |
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1766065250941009920 |