Inland diatoms from the McMurdo Dry Valleys and James Ross Island, Antarctica
Abstract: Diatom taxa present in the inland streams and lakes of the McMurdo Dry Valleys and James Ross Island, Antarctica, are presented in this paper. A total of nine taxa are illustrated, with descriptions of four new species (Luticola austroatlantica sp. nov., Luticola dolia sp. nov., Luticola l...
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ftunivantwerpen:c:irua:72072 2024-09-30T14:23:56+00:00 Inland diatoms from the McMurdo Dry Valleys and James Ross Island, Antarctica Esposito, R.M.M. Spaulding, S.A. McKnight, D.M. Van de Vijver, Bart Kopalová, Kateřina Lubinski, D. Hall, B. Whittaker, T. 2008 https://hdl.handle.net/10067/720720151162165141 eng eng info:eu-repo/semantics/closedAccess 1916-2790 Botany : an international journal for plant biology Biology info:eu-repo/semantics/article 2008 ftunivantwerpen 2024-09-10T04:06:32Z Abstract: Diatom taxa present in the inland streams and lakes of the McMurdo Dry Valleys and James Ross Island, Antarctica, are presented in this paper. A total of nine taxa are illustrated, with descriptions of four new species (Luticola austroatlantica sp. nov., Luticola dolia sp. nov., Luticola laeta sp. nov., Muelleria supra sp. nov.). In the perennially ice-covered lakes of the McMurdo Dry Valleys, diatoms are confined to benthic mats within the photic zone. In streams, diatoms are attached to benthic surfaces and within the microbial mat matrix. One species, L. austroatlantica, is found on James Ross Island, of the southern Atlantic archipelago, and the McMurdo Dry Valleys. The McMurdo Dry Valley populations are at the lower range of the size spectrum for the species. Streams flow for 610 weeks during the austral summer, when temperatures and solar radiation allow glacial ice to melt. The diatom flora of the region is characterized by species assemblages favored under harsh conditions, with naviculoid taxa as the dominant group and several major diatom groups conspicuously absent. Article in Journal/Newspaper Antarc* Antarctica James Ross Island McMurdo Dry Valleys Ross Island IRUA - Institutional Repository van de Universiteit Antwerpen Austral McMurdo Dry Valleys Ross Island |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Biology |
spellingShingle |
Biology Esposito, R.M.M. Spaulding, S.A. McKnight, D.M. Van de Vijver, Bart Kopalová, Kateřina Lubinski, D. Hall, B. Whittaker, T. Inland diatoms from the McMurdo Dry Valleys and James Ross Island, Antarctica |
topic_facet |
Biology |
description |
Abstract: Diatom taxa present in the inland streams and lakes of the McMurdo Dry Valleys and James Ross Island, Antarctica, are presented in this paper. A total of nine taxa are illustrated, with descriptions of four new species (Luticola austroatlantica sp. nov., Luticola dolia sp. nov., Luticola laeta sp. nov., Muelleria supra sp. nov.). In the perennially ice-covered lakes of the McMurdo Dry Valleys, diatoms are confined to benthic mats within the photic zone. In streams, diatoms are attached to benthic surfaces and within the microbial mat matrix. One species, L. austroatlantica, is found on James Ross Island, of the southern Atlantic archipelago, and the McMurdo Dry Valleys. The McMurdo Dry Valley populations are at the lower range of the size spectrum for the species. Streams flow for 610 weeks during the austral summer, when temperatures and solar radiation allow glacial ice to melt. The diatom flora of the region is characterized by species assemblages favored under harsh conditions, with naviculoid taxa as the dominant group and several major diatom groups conspicuously absent. |
format |
Article in Journal/Newspaper |
author |
Esposito, R.M.M. Spaulding, S.A. McKnight, D.M. Van de Vijver, Bart Kopalová, Kateřina Lubinski, D. Hall, B. Whittaker, T. |
author_facet |
Esposito, R.M.M. Spaulding, S.A. McKnight, D.M. Van de Vijver, Bart Kopalová, Kateřina Lubinski, D. Hall, B. Whittaker, T. |
author_sort |
Esposito, R.M.M. |
title |
Inland diatoms from the McMurdo Dry Valleys and James Ross Island, Antarctica |
title_short |
Inland diatoms from the McMurdo Dry Valleys and James Ross Island, Antarctica |
title_full |
Inland diatoms from the McMurdo Dry Valleys and James Ross Island, Antarctica |
title_fullStr |
Inland diatoms from the McMurdo Dry Valleys and James Ross Island, Antarctica |
title_full_unstemmed |
Inland diatoms from the McMurdo Dry Valleys and James Ross Island, Antarctica |
title_sort |
inland diatoms from the mcmurdo dry valleys and james ross island, antarctica |
publishDate |
2008 |
url |
https://hdl.handle.net/10067/720720151162165141 |
geographic |
Austral McMurdo Dry Valleys Ross Island |
geographic_facet |
Austral McMurdo Dry Valleys Ross Island |
genre |
Antarc* Antarctica James Ross Island McMurdo Dry Valleys Ross Island |
genre_facet |
Antarc* Antarctica James Ross Island McMurdo Dry Valleys Ross Island |
op_source |
1916-2790 Botany : an international journal for plant biology |
op_rights |
info:eu-repo/semantics/closedAccess |
_version_ |
1811639070729699328 |