Stream diatom assemblages in an Arctic catchment: diversity and relationship to ecosystem-scale primary production
We quantified benthic diatom diversity in streams in the Miellajokka catchment, about 200 km north of the Arctic circle in Sweden. Beta diversity among sites was related to local-scale environmental heterogeneity (occurring on the order of 1 km or less), and its magnitude was equal (Sørensen Index =...
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Format: | Article in Journal/Newspaper |
Language: | English French |
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Canadian Science Publishing
2021
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Online Access: | https://doi.org/10.1139/as-2020-0060 https://doaj.org/article/d5f371e477c6409e9eb7cc60ce1d4a06 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:d5f371e477c6409e9eb7cc60ce1d4a06 2023-05-15T14:22:22+02:00 Stream diatom assemblages in an Arctic catchment: diversity and relationship to ecosystem-scale primary production Breena Riley David Seekell 2021-09-01 https://doi.org/10.1139/as-2020-0060 https://doaj.org/article/d5f371e477c6409e9eb7cc60ce1d4a06 en fr eng fre Canadian Science Publishing doi:10.1139/as-2020-0060 2368-7460 https://doaj.org/article/d5f371e477c6409e9eb7cc60ce1d4a06 undefined Arctic Science, Vol 7, Iss 3, Pp 1-19 (2021) diatoms beta diversity environmental filtering gross primary production arctic rivers envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.1139/as-2020-0060 2023-01-22T17:21:06Z We quantified benthic diatom diversity in streams in the Miellajokka catchment, about 200 km north of the Arctic circle in Sweden. Beta diversity among sites was related to local-scale environmental heterogeneity (occurring on the order of 1 km or less), and its magnitude was equal (Sørensen Index = 0.62) to levels previously reported for rivers on regional environmental gradients across hundreds of kilometres of Arctic Fennoscandia. Species turnover was the dominant (77%) component of beta diversity in the Miellajokka catchment. Small, stress-tolerant taxa dominated the assemblages, and there were no clear patterns of functional class among sites. Site ordinates from non-metric dimensional scaling were most strongly correlated with flood frequency (r = 0.83) and water temperature (r = 0.89), which was higher in harsh tundra sites than below treeline. Additionally, site ordinates were correlated (r = 0.83) with ecosystem-scale gross primary production — indicative of a link between diatom diversity and ecosystem function. Our results advance understanding of patterns diatom diversity in Arctic streams by quantifying local-scale variation that is understudied in this region, and by identifying the consequences of this local-scale diversity for an ecosystem-scale process. Article in Journal/Newspaper Arctic Arctic Fennoscandia Tundra Unknown Arctic Arctic Science 7 4 762 780 |
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Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English French |
topic |
diatoms beta diversity environmental filtering gross primary production arctic rivers envir geo |
spellingShingle |
diatoms beta diversity environmental filtering gross primary production arctic rivers envir geo Breena Riley David Seekell Stream diatom assemblages in an Arctic catchment: diversity and relationship to ecosystem-scale primary production |
topic_facet |
diatoms beta diversity environmental filtering gross primary production arctic rivers envir geo |
description |
We quantified benthic diatom diversity in streams in the Miellajokka catchment, about 200 km north of the Arctic circle in Sweden. Beta diversity among sites was related to local-scale environmental heterogeneity (occurring on the order of 1 km or less), and its magnitude was equal (Sørensen Index = 0.62) to levels previously reported for rivers on regional environmental gradients across hundreds of kilometres of Arctic Fennoscandia. Species turnover was the dominant (77%) component of beta diversity in the Miellajokka catchment. Small, stress-tolerant taxa dominated the assemblages, and there were no clear patterns of functional class among sites. Site ordinates from non-metric dimensional scaling were most strongly correlated with flood frequency (r = 0.83) and water temperature (r = 0.89), which was higher in harsh tundra sites than below treeline. Additionally, site ordinates were correlated (r = 0.83) with ecosystem-scale gross primary production — indicative of a link between diatom diversity and ecosystem function. Our results advance understanding of patterns diatom diversity in Arctic streams by quantifying local-scale variation that is understudied in this region, and by identifying the consequences of this local-scale diversity for an ecosystem-scale process. |
format |
Article in Journal/Newspaper |
author |
Breena Riley David Seekell |
author_facet |
Breena Riley David Seekell |
author_sort |
Breena Riley |
title |
Stream diatom assemblages in an Arctic catchment: diversity and relationship to ecosystem-scale primary production |
title_short |
Stream diatom assemblages in an Arctic catchment: diversity and relationship to ecosystem-scale primary production |
title_full |
Stream diatom assemblages in an Arctic catchment: diversity and relationship to ecosystem-scale primary production |
title_fullStr |
Stream diatom assemblages in an Arctic catchment: diversity and relationship to ecosystem-scale primary production |
title_full_unstemmed |
Stream diatom assemblages in an Arctic catchment: diversity and relationship to ecosystem-scale primary production |
title_sort |
stream diatom assemblages in an arctic catchment: diversity and relationship to ecosystem-scale primary production |
publisher |
Canadian Science Publishing |
publishDate |
2021 |
url |
https://doi.org/10.1139/as-2020-0060 https://doaj.org/article/d5f371e477c6409e9eb7cc60ce1d4a06 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Fennoscandia Tundra |
genre_facet |
Arctic Arctic Fennoscandia Tundra |
op_source |
Arctic Science, Vol 7, Iss 3, Pp 1-19 (2021) |
op_relation |
doi:10.1139/as-2020-0060 2368-7460 https://doaj.org/article/d5f371e477c6409e9eb7cc60ce1d4a06 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1139/as-2020-0060 |
container_title |
Arctic Science |
container_volume |
7 |
container_issue |
4 |
container_start_page |
762 |
op_container_end_page |
780 |
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1766294973914808320 |