Taxonomic and biogeographical analysis of diatom assemblages from historic bryophyte samples from Campbell Island (sub-Antarctic)
Background and aims – The past two decades, the non-marine diatom flora in the sub-Aantarctic region has been intensively revised. Historic collections provide excellent tools for answering taxonomic, community-related, and biogeographical questions. This study analysed the moss-inhabiting diatom fl...
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Meise Botanic Garden
2022
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Online Access: | https://doi.org/10.5091/plecevo.84543 https://doaj.org/article/1e05f0c659f747ff9a45b69f081fd122 |
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ftdoajarticles:oai:doaj.org/article:1e05f0c659f747ff9a45b69f081fd122 2024-01-07T09:38:39+01:00 Taxonomic and biogeographical analysis of diatom assemblages from historic bryophyte samples from Campbell Island (sub-Antarctic) Charlotte Goeyers Dale H. Vitt Bart Van de Vijver 2022-03-01T00:00:00Z https://doi.org/10.5091/plecevo.84543 https://doaj.org/article/1e05f0c659f747ff9a45b69f081fd122 EN eng Meise Botanic Garden https://plecevo.eu/article/84543/download/pdf/ https://plecevo.eu/article/84543/download/xml/ https://plecevo.eu/article/84543/ https://doaj.org/toc/2032-3921 doi:10.5091/plecevo.84543 2032-3921 https://doaj.org/article/1e05f0c659f747ff9a45b69f081fd122 Plant Ecology and Evolution, Vol 155, Iss 1, Pp 107-122 (2022) Antarctic realm bryophytes Campbell Island diat Plant ecology QK900-989 article 2022 ftdoajarticles https://doi.org/10.5091/plecevo.84543 2023-12-10T01:52:09Z Background and aims – The past two decades, the non-marine diatom flora in the sub-Aantarctic region has been intensively revised. Historic collections provide excellent tools for answering taxonomic, community-related, and biogeographical questions. This study analysed the moss-inhabiting diatom flora from sub-Antarctic Campbell Island in samples collected in 1969–1970 and retrieved from the British Antarctic Survey herbarium (Cambridge, UK). With this study we attempt to expand our, till now sparse, knowledge on the moss-inhabiting diatom flora in the southern Pacific Ocean.Material and methods – In total, the diatom composition in 32 moss samples has been analysed using Light Microscopy (LM) and Scanning Electron Microscopy (SEM). A biogeographical analysis and community analysis of the Campbell Island diatom flora were conducted.Key results – Analysis of the Campbell Island diatom flora revealed the presence of 141 taxa belonging to 45 genera. The species composition in the dominant genera Planothidium, Humidophila, and Psammothidium, the presence of Epithemia, Rhopalodia, Cocconeis, uncommon in the sub-Antarctic region, and many unidentified taxa point to the uniqueness of the Campbell Island diatom flora. The biogeographical analysis showed an overall low similarity with the other sub-Antarctic and the Maritime Antarctic islands. Four different diatom assemblages were distinguished following the community analysis. Moisture level and habitat type seem to be the main factors shaping the Campbell Island diatom assemblages.Conclusion – The results of the Campbell Island diatom analysis highlight the importance of historic herbarium material. Since the examined flora is largely composed of unknown (presumably new) species, it is vital to analyse additional (historic) samples to complete the assessment of the moss diatom assemblages from Campbell Island. Article in Journal/Newspaper Antarc* Antarctic British Antarctic Survey Directory of Open Access Journals: DOAJ Articles Antarctic Campbell Island ENVELOPE(169.500,169.500,-52.500,-52.500) Pacific Plant Ecology and Evolution 155 1 107 122 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctic realm bryophytes Campbell Island diat Plant ecology QK900-989 |
spellingShingle |
Antarctic realm bryophytes Campbell Island diat Plant ecology QK900-989 Charlotte Goeyers Dale H. Vitt Bart Van de Vijver Taxonomic and biogeographical analysis of diatom assemblages from historic bryophyte samples from Campbell Island (sub-Antarctic) |
topic_facet |
Antarctic realm bryophytes Campbell Island diat Plant ecology QK900-989 |
description |
Background and aims – The past two decades, the non-marine diatom flora in the sub-Aantarctic region has been intensively revised. Historic collections provide excellent tools for answering taxonomic, community-related, and biogeographical questions. This study analysed the moss-inhabiting diatom flora from sub-Antarctic Campbell Island in samples collected in 1969–1970 and retrieved from the British Antarctic Survey herbarium (Cambridge, UK). With this study we attempt to expand our, till now sparse, knowledge on the moss-inhabiting diatom flora in the southern Pacific Ocean.Material and methods – In total, the diatom composition in 32 moss samples has been analysed using Light Microscopy (LM) and Scanning Electron Microscopy (SEM). A biogeographical analysis and community analysis of the Campbell Island diatom flora were conducted.Key results – Analysis of the Campbell Island diatom flora revealed the presence of 141 taxa belonging to 45 genera. The species composition in the dominant genera Planothidium, Humidophila, and Psammothidium, the presence of Epithemia, Rhopalodia, Cocconeis, uncommon in the sub-Antarctic region, and many unidentified taxa point to the uniqueness of the Campbell Island diatom flora. The biogeographical analysis showed an overall low similarity with the other sub-Antarctic and the Maritime Antarctic islands. Four different diatom assemblages were distinguished following the community analysis. Moisture level and habitat type seem to be the main factors shaping the Campbell Island diatom assemblages.Conclusion – The results of the Campbell Island diatom analysis highlight the importance of historic herbarium material. Since the examined flora is largely composed of unknown (presumably new) species, it is vital to analyse additional (historic) samples to complete the assessment of the moss diatom assemblages from Campbell Island. |
format |
Article in Journal/Newspaper |
author |
Charlotte Goeyers Dale H. Vitt Bart Van de Vijver |
author_facet |
Charlotte Goeyers Dale H. Vitt Bart Van de Vijver |
author_sort |
Charlotte Goeyers |
title |
Taxonomic and biogeographical analysis of diatom assemblages from historic bryophyte samples from Campbell Island (sub-Antarctic) |
title_short |
Taxonomic and biogeographical analysis of diatom assemblages from historic bryophyte samples from Campbell Island (sub-Antarctic) |
title_full |
Taxonomic and biogeographical analysis of diatom assemblages from historic bryophyte samples from Campbell Island (sub-Antarctic) |
title_fullStr |
Taxonomic and biogeographical analysis of diatom assemblages from historic bryophyte samples from Campbell Island (sub-Antarctic) |
title_full_unstemmed |
Taxonomic and biogeographical analysis of diatom assemblages from historic bryophyte samples from Campbell Island (sub-Antarctic) |
title_sort |
taxonomic and biogeographical analysis of diatom assemblages from historic bryophyte samples from campbell island (sub-antarctic) |
publisher |
Meise Botanic Garden |
publishDate |
2022 |
url |
https://doi.org/10.5091/plecevo.84543 https://doaj.org/article/1e05f0c659f747ff9a45b69f081fd122 |
long_lat |
ENVELOPE(169.500,169.500,-52.500,-52.500) |
geographic |
Antarctic Campbell Island Pacific |
geographic_facet |
Antarctic Campbell Island Pacific |
genre |
Antarc* Antarctic British Antarctic Survey |
genre_facet |
Antarc* Antarctic British Antarctic Survey |
op_source |
Plant Ecology and Evolution, Vol 155, Iss 1, Pp 107-122 (2022) |
op_relation |
https://plecevo.eu/article/84543/download/pdf/ https://plecevo.eu/article/84543/download/xml/ https://plecevo.eu/article/84543/ https://doaj.org/toc/2032-3921 doi:10.5091/plecevo.84543 2032-3921 https://doaj.org/article/1e05f0c659f747ff9a45b69f081fd122 |
op_doi |
https://doi.org/10.5091/plecevo.84543 |
container_title |
Plant Ecology and Evolution |
container_volume |
155 |
container_issue |
1 |
container_start_page |
107 |
op_container_end_page |
122 |
_version_ |
1787424716946931712 |