Diversity, ecology, and community structure of the terrestrial diatom flora from Ulu Peninsula (James Ross Island, NE Antarctic Peninsula)
Diatoms constitute an important and diverse component of terrestrial protist communities but remain poorly studied, especially in the Antarctic realm. Here, we investigated the diversity and community structure of the terrestrial diatom flora from the Ulu Peninsula, James Ross Island (Maritime Antar...
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ftinfoscience:oai:infoscience.epfl.ch:293967 2023-05-15T13:43:17+02:00 Diversity, ecology, and community structure of the terrestrial diatom flora from Ulu Peninsula (James Ross Island, NE Antarctic Peninsula) Chattova, Barbora Cahova, Tereza Pinseel, Eveline Kopalova, Katerina Kohler, Tyler J. Hrbacek, Filip van de Vijver, Bart Nyvlt, Daniel 2022-05-09T00:30:13Z https://doi.org/10.1007/s00300-022-03038-z http://infoscience.epfl.ch/record/293967 unknown doi:10.1007/s00300-022-03038-z isi:000784279000001 http://infoscience.epfl.ch/record/293967 http://infoscience.epfl.ch/record/293967 Text 2022 ftinfoscience https://doi.org/10.1007/s00300-022-03038-z 2023-02-13T23:09:59Z Diatoms constitute an important and diverse component of terrestrial protist communities but remain poorly studied, especially in the Antarctic realm. Here, we investigated the diversity and community structure of the terrestrial diatom flora from the Ulu Peninsula, James Ross Island (Maritime Antarctic Region) using a morphology-based dataset and physico-chemical measurements. A total of 97 taxa belonging to 27 genera was identified in 59 samples from terrestrial environments, including soils and rock walls. The flora was dominated by the genera Hantzschia, Luticola, and Humidophila. Eight distinct diatom assemblages could be distinguished and were mainly structured by differences in environmental characteristics such as vegetation coverage, moisture, conductivity, pH, and nutrient concentrations. In general, James Ross Island harboured a unique diatom flora as evidenced by very low similarity values with other (sub-)Antarctic localities. Only 16% of the taxa have a typical cosmopolitan distribution, whereas 70% showed a restricted Antarctic distribution, supporting previous indications of high species-level endemism in environments characterized by harsh abiotic conditions. In addition, several of the cosmopolitan species uncovered in this study might harbour substantial levels of hidden diversity, including endemic taxa, as previously revealed for the Pinnularia borealis species complex on James Ross Island. Taken together, the present study improves our knowledge and understanding of the diversity, ecology, and community structure of the terrestrial diatom flora of Ulu Peninsula and highlights that soils and wet rock walls represent important terrestrial habitats in this transitional zone between Maritime and Continental Antarctica. Text Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Ross Island EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) Antarctic Antarctic Peninsula Ross Island The Antarctic Ulu Peninsula ENVELOPE(-57.963,-57.963,-63.918,-63.918) Polar Biology 45 5 873 894 |
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Open Polar |
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EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) |
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ftinfoscience |
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unknown |
description |
Diatoms constitute an important and diverse component of terrestrial protist communities but remain poorly studied, especially in the Antarctic realm. Here, we investigated the diversity and community structure of the terrestrial diatom flora from the Ulu Peninsula, James Ross Island (Maritime Antarctic Region) using a morphology-based dataset and physico-chemical measurements. A total of 97 taxa belonging to 27 genera was identified in 59 samples from terrestrial environments, including soils and rock walls. The flora was dominated by the genera Hantzschia, Luticola, and Humidophila. Eight distinct diatom assemblages could be distinguished and were mainly structured by differences in environmental characteristics such as vegetation coverage, moisture, conductivity, pH, and nutrient concentrations. In general, James Ross Island harboured a unique diatom flora as evidenced by very low similarity values with other (sub-)Antarctic localities. Only 16% of the taxa have a typical cosmopolitan distribution, whereas 70% showed a restricted Antarctic distribution, supporting previous indications of high species-level endemism in environments characterized by harsh abiotic conditions. In addition, several of the cosmopolitan species uncovered in this study might harbour substantial levels of hidden diversity, including endemic taxa, as previously revealed for the Pinnularia borealis species complex on James Ross Island. Taken together, the present study improves our knowledge and understanding of the diversity, ecology, and community structure of the terrestrial diatom flora of Ulu Peninsula and highlights that soils and wet rock walls represent important terrestrial habitats in this transitional zone between Maritime and Continental Antarctica. |
format |
Text |
author |
Chattova, Barbora Cahova, Tereza Pinseel, Eveline Kopalova, Katerina Kohler, Tyler J. Hrbacek, Filip van de Vijver, Bart Nyvlt, Daniel |
spellingShingle |
Chattova, Barbora Cahova, Tereza Pinseel, Eveline Kopalova, Katerina Kohler, Tyler J. Hrbacek, Filip van de Vijver, Bart Nyvlt, Daniel Diversity, ecology, and community structure of the terrestrial diatom flora from Ulu Peninsula (James Ross Island, NE Antarctic Peninsula) |
author_facet |
Chattova, Barbora Cahova, Tereza Pinseel, Eveline Kopalova, Katerina Kohler, Tyler J. Hrbacek, Filip van de Vijver, Bart Nyvlt, Daniel |
author_sort |
Chattova, Barbora |
title |
Diversity, ecology, and community structure of the terrestrial diatom flora from Ulu Peninsula (James Ross Island, NE Antarctic Peninsula) |
title_short |
Diversity, ecology, and community structure of the terrestrial diatom flora from Ulu Peninsula (James Ross Island, NE Antarctic Peninsula) |
title_full |
Diversity, ecology, and community structure of the terrestrial diatom flora from Ulu Peninsula (James Ross Island, NE Antarctic Peninsula) |
title_fullStr |
Diversity, ecology, and community structure of the terrestrial diatom flora from Ulu Peninsula (James Ross Island, NE Antarctic Peninsula) |
title_full_unstemmed |
Diversity, ecology, and community structure of the terrestrial diatom flora from Ulu Peninsula (James Ross Island, NE Antarctic Peninsula) |
title_sort |
diversity, ecology, and community structure of the terrestrial diatom flora from ulu peninsula (james ross island, ne antarctic peninsula) |
publishDate |
2022 |
url |
https://doi.org/10.1007/s00300-022-03038-z http://infoscience.epfl.ch/record/293967 |
long_lat |
ENVELOPE(-57.963,-57.963,-63.918,-63.918) |
geographic |
Antarctic Antarctic Peninsula Ross Island The Antarctic Ulu Peninsula |
geographic_facet |
Antarctic Antarctic Peninsula Ross Island The Antarctic Ulu Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Ross Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Ross Island |
op_source |
http://infoscience.epfl.ch/record/293967 |
op_relation |
doi:10.1007/s00300-022-03038-z isi:000784279000001 http://infoscience.epfl.ch/record/293967 |
op_doi |
https://doi.org/10.1007/s00300-022-03038-z |
container_title |
Polar Biology |
container_volume |
45 |
container_issue |
5 |
container_start_page |
873 |
op_container_end_page |
894 |
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1766186715217657856 |