Biogeographic distributions and environmental controls of stream diatoms in the Canadian Arctic Archipelago
Streams are amongst the most sensitive ecosystems in Arctic regions to environmental change. Although diatoms are excellent indicators of environmental change, little information is available about stream diatom distributions across the vast Canadian High Arctic. We sampled 42 streams from nine isla...
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2009
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crcansciencepubl:10.1139/b09-001 2023-12-17T10:23:37+01:00 Biogeographic distributions and environmental controls of stream diatoms in the Canadian Arctic Archipelago Antoniades, Dermot Douglas, Marianne S.V. Smol, John P. 2009 http://dx.doi.org/10.1139/b09-001 http://www.nrcresearchpress.com/doi/full-xml/10.1139/B09-001 http://www.nrcresearchpress.com/doi/pdf/10.1139/B09-001 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Botany volume 87, issue 5, page 443-454 ISSN 1916-2790 1916-2804 Plant Science Ecology Ecology, Evolution, Behavior and Systematics journal-article 2009 crcansciencepubl https://doi.org/10.1139/b09-001 2023-11-19T13:38:23Z Streams are amongst the most sensitive ecosystems in Arctic regions to environmental change. Although diatoms are excellent indicators of environmental change, little information is available about stream diatom distributions across the vast Canadian High Arctic. We sampled 42 streams from nine islands in the Canadian Arctic Archipelago to study their diatom floras and evaluate the influences of biogeographic and environmental variables on species distributions. Highly divergent diatom communities were identified, with 100% species overturn between the most dissimilar communities. Taxa including Hannaea arcus (Ehrenberg) Patrick were characteristic of streams from all regions; other common taxa included Nitzschia perminuta (Grunow) Peragallo, Rossithidium petersenii (Hustedt) Round & Bukhtiyarova, Achnanthidium minutissimum (Kützing) Czarnecki, and Eucocconeis laevis (Østrup) H. Lange-Bertalot. Canonical correspondence analysis indicated that diatom assemblages were significantly related to differences in pH, temperature, latitude, and longitude, which together explained 14.7% of species variability. Analysis of similarities indicated that communities did not differ significantly between epilithic and epiphytic samples and that there were weak but significant differences between the diatom communities in our three regions. These data provide important baseline information for future biomonitoring efforts as well as for paleolimnological studies of past stream hydrology. Article in Journal/Newspaper Arctic Archipelago Arctic Canadian Arctic Archipelago Canadian Science Publishing (via Crossref) Arctic Canadian Arctic Archipelago Botany 87 5 443 454 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Plant Science Ecology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Plant Science Ecology Ecology, Evolution, Behavior and Systematics Antoniades, Dermot Douglas, Marianne S.V. Smol, John P. Biogeographic distributions and environmental controls of stream diatoms in the Canadian Arctic Archipelago |
topic_facet |
Plant Science Ecology Ecology, Evolution, Behavior and Systematics |
description |
Streams are amongst the most sensitive ecosystems in Arctic regions to environmental change. Although diatoms are excellent indicators of environmental change, little information is available about stream diatom distributions across the vast Canadian High Arctic. We sampled 42 streams from nine islands in the Canadian Arctic Archipelago to study their diatom floras and evaluate the influences of biogeographic and environmental variables on species distributions. Highly divergent diatom communities were identified, with 100% species overturn between the most dissimilar communities. Taxa including Hannaea arcus (Ehrenberg) Patrick were characteristic of streams from all regions; other common taxa included Nitzschia perminuta (Grunow) Peragallo, Rossithidium petersenii (Hustedt) Round & Bukhtiyarova, Achnanthidium minutissimum (Kützing) Czarnecki, and Eucocconeis laevis (Østrup) H. Lange-Bertalot. Canonical correspondence analysis indicated that diatom assemblages were significantly related to differences in pH, temperature, latitude, and longitude, which together explained 14.7% of species variability. Analysis of similarities indicated that communities did not differ significantly between epilithic and epiphytic samples and that there were weak but significant differences between the diatom communities in our three regions. These data provide important baseline information for future biomonitoring efforts as well as for paleolimnological studies of past stream hydrology. |
format |
Article in Journal/Newspaper |
author |
Antoniades, Dermot Douglas, Marianne S.V. Smol, John P. |
author_facet |
Antoniades, Dermot Douglas, Marianne S.V. Smol, John P. |
author_sort |
Antoniades, Dermot |
title |
Biogeographic distributions and environmental controls of stream diatoms in the Canadian Arctic Archipelago |
title_short |
Biogeographic distributions and environmental controls of stream diatoms in the Canadian Arctic Archipelago |
title_full |
Biogeographic distributions and environmental controls of stream diatoms in the Canadian Arctic Archipelago |
title_fullStr |
Biogeographic distributions and environmental controls of stream diatoms in the Canadian Arctic Archipelago |
title_full_unstemmed |
Biogeographic distributions and environmental controls of stream diatoms in the Canadian Arctic Archipelago |
title_sort |
biogeographic distributions and environmental controls of stream diatoms in the canadian arctic archipelago |
publisher |
Canadian Science Publishing |
publishDate |
2009 |
url |
http://dx.doi.org/10.1139/b09-001 http://www.nrcresearchpress.com/doi/full-xml/10.1139/B09-001 http://www.nrcresearchpress.com/doi/pdf/10.1139/B09-001 |
geographic |
Arctic Canadian Arctic Archipelago |
geographic_facet |
Arctic Canadian Arctic Archipelago |
genre |
Arctic Archipelago Arctic Canadian Arctic Archipelago |
genre_facet |
Arctic Archipelago Arctic Canadian Arctic Archipelago |
op_source |
Botany volume 87, issue 5, page 443-454 ISSN 1916-2790 1916-2804 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b09-001 |
container_title |
Botany |
container_volume |
87 |
container_issue |
5 |
container_start_page |
443 |
op_container_end_page |
454 |
_version_ |
1785559267127853056 |