Diversity, ecology, and community structure of the terrestrial diatom flora from Ulu Peninsula (James Ross Island, NE Antarctic Peninsula)
Abstract: 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 (Mari...
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ftunivantwerpen:c:irua:188038 2024-09-30T14:26:27+00:00 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 https://hdl.handle.net/10067/1880380151162165141 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1007/S00300-022-03038-Z info:eu-repo/semantics/altIdentifier/isi/000784279000001 info:eu-repo/semantics/closedAccess 0722-4060 Polar biology Chemistry Biology info:eu-repo/semantics/article 2022 ftunivantwerpen https://doi.org/10.1007/S00300-022-03038-Z 2024-09-10T04:06:36Z Abstract: 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. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Polar Biology Ross Island IRUA - Institutional Repository van de Universiteit Antwerpen Antarctic The Antarctic Antarctic Peninsula Ross Island Ulu Peninsula ENVELOPE(-57.963,-57.963,-63.918,-63.918) Polar Biology 45 5 873 894 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Chemistry Biology |
spellingShingle |
Chemistry Biology 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) |
topic_facet |
Chemistry Biology |
description |
Abstract: 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 |
Article in Journal/Newspaper |
author |
Chattova, Barbora Cahova, Tereza Pinseel, Eveline Kopalova, Katerina Kohler, Tyler J. Hrbacek, Filip Van de Vijver, Bart Nyvlt, Daniel |
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://hdl.handle.net/10067/1880380151162165141 |
long_lat |
ENVELOPE(-57.963,-57.963,-63.918,-63.918) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Ross Island Ulu Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Ross Island Ulu Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Polar Biology Ross Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Polar Biology Ross Island |
op_source |
0722-4060 Polar biology |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/S00300-022-03038-Z info:eu-repo/semantics/altIdentifier/isi/000784279000001 |
op_rights |
info:eu-repo/semantics/closedAccess |
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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1811646786553511936 |