A re-investigation of lake sediment diatoms from the Vestfold Hills, Antarctica, using an updated, fine-grained taxonomy
The non-marine diatom flora of the Antarctic continent is currently being revised as recent work within the Maritime and Sub-Antarctic regions has unveiled a number of new endemic species. The under reporting of endemic species is partially due to the historic ‘force-fitting’ of Antarctic species in...
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ftunivtasmania:oai:eprints.utas.edu.au:35027 2023-05-15T13:42:39+02:00 A re-investigation of lake sediment diatoms from the Vestfold Hills, Antarctica, using an updated, fine-grained taxonomy Bishop, J Kopalova, K Kohler, TJ van de Vijver, B Roberts, D McMinn, A Gibson, J 2020 https://eprints.utas.edu.au/35027/ unknown Taylor and Francis Bishop, J, Kopalova, K, Kohler, TJ, van de Vijver, B, Roberts, D, McMinn, A orcid:0000-0002-2133-3854 and Gibson, J 2020 , 'A re-investigation of lake sediment diatoms from the Vestfold Hills, Antarctica, using an updated, fine-grained taxonomy' , Diatom Research, vol. 35, no. 3 , pp. 231-254 , doi:10.1080/0269249X.2020.1794982 <http://dx.doi.org/10.1080/0269249X.2020.1794982>. Antarctica diatoms Vestfold Hills fine-grained taxonomy East Antarctica lake sediments Article PeerReviewed 2020 ftunivtasmania https://doi.org/10.1080/0269249X.2020.1794982 2021-10-04T22:19:00Z The non-marine diatom flora of the Antarctic continent is currently being revised as recent work within the Maritime and Sub-Antarctic regions has unveiled a number of new endemic species. The under reporting of endemic species is partially due to the historic ‘force-fitting’ of Antarctic species into European names. Within East Antarctica, the Vestfold Hills are an extensively studied area known for their diversity of lakes spanning a salinity gradient, for which Diatoms of the saline lakes of the Vestfold Hills, Antarctica by Roberts & McMinn (1999) has a primary identification resource for over two decades. To determine if improved taxonomic resolution alters the ecological interpretation of these lakes, 30 prepared lake sediment samples first examined by Roberts & McMinn (1999) were re-analysed using an updated, fine-grained taxonomic approach. Our analyses confirmed the role of salinity and alkalinity in structuring Vestfold Hills diatom communities. Thus, the increased taxonomic resolution did not change the original ecological interpretation. However, the revised flora of the Vestfold Hills features 37 species endemic to the Antarctic Region, including members of Luticola, Sabbea and Halamphora, among others. In total, 183 taxa across 38 genera were observed, in contrast to the 67 taxa reported in the original work. The revised flora, including a larger proportion of endemic species, may improve our understanding of the diatom community in general and has wider implications for both conservation and biodiversity estimates of Antarctica. More widely applied, these data can be incorporated into larger studies of Antarctic microbial biogeography and biodiversity. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica University of Tasmania: UTas ePrints Antarctic The Antarctic East Antarctica Vestfold Hills Vestfold Diatom Research 35 3 231 254 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
unknown |
topic |
Antarctica diatoms Vestfold Hills fine-grained taxonomy East Antarctica lake sediments |
spellingShingle |
Antarctica diatoms Vestfold Hills fine-grained taxonomy East Antarctica lake sediments Bishop, J Kopalova, K Kohler, TJ van de Vijver, B Roberts, D McMinn, A Gibson, J A re-investigation of lake sediment diatoms from the Vestfold Hills, Antarctica, using an updated, fine-grained taxonomy |
topic_facet |
Antarctica diatoms Vestfold Hills fine-grained taxonomy East Antarctica lake sediments |
description |
The non-marine diatom flora of the Antarctic continent is currently being revised as recent work within the Maritime and Sub-Antarctic regions has unveiled a number of new endemic species. The under reporting of endemic species is partially due to the historic ‘force-fitting’ of Antarctic species into European names. Within East Antarctica, the Vestfold Hills are an extensively studied area known for their diversity of lakes spanning a salinity gradient, for which Diatoms of the saline lakes of the Vestfold Hills, Antarctica by Roberts & McMinn (1999) has a primary identification resource for over two decades. To determine if improved taxonomic resolution alters the ecological interpretation of these lakes, 30 prepared lake sediment samples first examined by Roberts & McMinn (1999) were re-analysed using an updated, fine-grained taxonomic approach. Our analyses confirmed the role of salinity and alkalinity in structuring Vestfold Hills diatom communities. Thus, the increased taxonomic resolution did not change the original ecological interpretation. However, the revised flora of the Vestfold Hills features 37 species endemic to the Antarctic Region, including members of Luticola, Sabbea and Halamphora, among others. In total, 183 taxa across 38 genera were observed, in contrast to the 67 taxa reported in the original work. The revised flora, including a larger proportion of endemic species, may improve our understanding of the diatom community in general and has wider implications for both conservation and biodiversity estimates of Antarctica. More widely applied, these data can be incorporated into larger studies of Antarctic microbial biogeography and biodiversity. |
format |
Article in Journal/Newspaper |
author |
Bishop, J Kopalova, K Kohler, TJ van de Vijver, B Roberts, D McMinn, A Gibson, J |
author_facet |
Bishop, J Kopalova, K Kohler, TJ van de Vijver, B Roberts, D McMinn, A Gibson, J |
author_sort |
Bishop, J |
title |
A re-investigation of lake sediment diatoms from the Vestfold Hills, Antarctica, using an updated, fine-grained taxonomy |
title_short |
A re-investigation of lake sediment diatoms from the Vestfold Hills, Antarctica, using an updated, fine-grained taxonomy |
title_full |
A re-investigation of lake sediment diatoms from the Vestfold Hills, Antarctica, using an updated, fine-grained taxonomy |
title_fullStr |
A re-investigation of lake sediment diatoms from the Vestfold Hills, Antarctica, using an updated, fine-grained taxonomy |
title_full_unstemmed |
A re-investigation of lake sediment diatoms from the Vestfold Hills, Antarctica, using an updated, fine-grained taxonomy |
title_sort |
re-investigation of lake sediment diatoms from the vestfold hills, antarctica, using an updated, fine-grained taxonomy |
publisher |
Taylor and Francis |
publishDate |
2020 |
url |
https://eprints.utas.edu.au/35027/ |
geographic |
Antarctic The Antarctic East Antarctica Vestfold Hills Vestfold |
geographic_facet |
Antarctic The Antarctic East Antarctica Vestfold Hills Vestfold |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_relation |
Bishop, J, Kopalova, K, Kohler, TJ, van de Vijver, B, Roberts, D, McMinn, A orcid:0000-0002-2133-3854 and Gibson, J 2020 , 'A re-investigation of lake sediment diatoms from the Vestfold Hills, Antarctica, using an updated, fine-grained taxonomy' , Diatom Research, vol. 35, no. 3 , pp. 231-254 , doi:10.1080/0269249X.2020.1794982 <http://dx.doi.org/10.1080/0269249X.2020.1794982>. |
op_doi |
https://doi.org/10.1080/0269249X.2020.1794982 |
container_title |
Diatom Research |
container_volume |
35 |
container_issue |
3 |
container_start_page |
231 |
op_container_end_page |
254 |
_version_ |
1766170473937240064 |