Biodiversity patterns of Arctic diatom assemblages in lakes and streams:Current reference conditions and historical context for biomonitoring
Comprehensive assessments of contemporary diatom distributions across the Arctic remain scarce. Furthermore, studies tracking species compositional differences across space and time, as well as diatom responses to climate warming, are mainly limited to paleolimnological studies due to a lack of rout...
Published in: | Freshwater Biology |
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Main Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2022
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Online Access: | https://curis.ku.dk/portal/da/publications/biodiversity-patterns-of-arctic-diatom-assemblages-in-lakes-and-streams(a497c914-7d1d-4a2e-89f1-1cef1df387ff).html https://doi.org/10.1111/fwb.13490 https://curis.ku.dk/ws/files/290256876/Biodiversity_patterns_of_Arctic_diatom_assemblages_in_lakes_and_streams.pdf |
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ftcopenhagenunip:oai:pure.atira.dk:publications/a497c914-7d1d-4a2e-89f1-1cef1df387ff 2024-06-09T07:42:33+00:00 Biodiversity patterns of Arctic diatom assemblages in lakes and streams:Current reference conditions and historical context for biomonitoring Kahlert, Maria Rühland, Kathleen M. Lavoie, Isabelle Keck, François Saulnier-Talbot, Emilie Bogan, Daniel Brua, Robert B. Campeau, Stéphane Christoffersen, Kirsten S. Culp, Joseph M. Karjalainen, Satu Maaria Lento, Jennifer Schneider, Susanne C. Shaftel, Rebecca Smol, John P. 2022 application/pdf https://curis.ku.dk/portal/da/publications/biodiversity-patterns-of-arctic-diatom-assemblages-in-lakes-and-streams(a497c914-7d1d-4a2e-89f1-1cef1df387ff).html https://doi.org/10.1111/fwb.13490 https://curis.ku.dk/ws/files/290256876/Biodiversity_patterns_of_Arctic_diatom_assemblages_in_lakes_and_streams.pdf eng eng info:eu-repo/semantics/openAccess Kahlert , M , Rühland , K M , Lavoie , I , Keck , F , Saulnier-Talbot , E , Bogan , D , Brua , R B , Campeau , S , Christoffersen , K S , Culp , J M , Karjalainen , S M , Lento , J , Schneider , S C , Shaftel , R & Smol , J P 2022 , ' Biodiversity patterns of Arctic diatom assemblages in lakes and streams : Current reference conditions and historical context for biomonitoring ' , Freshwater Biology , vol. 67 , no. 1 , pp. 116-140 . https://doi.org/10.1111/fwb.13490 circumpolar diatom biotypes environmental monitoring global warming paleolimnology article 2022 ftcopenhagenunip https://doi.org/10.1111/fwb.13490 2024-05-16T11:29:17Z Comprehensive assessments of contemporary diatom distributions across the Arctic remain scarce. Furthermore, studies tracking species compositional differences across space and time, as well as diatom responses to climate warming, are mainly limited to paleolimnological studies due to a lack of routine monitoring in lakes and streams across vast areas of the Arctic. The study aims to provide a spatial assessment of contemporary species distributions across the circum-Arctic, establish contemporary biodiversity patterns of diatom assemblages to use as reference conditions for future biomonitoring assessments, and determine pre-industrial baseline conditions to provide historical context for modern diatom distributions. Diatom assemblages were assessed using information from ongoing regulatory monitoring programmes, individual research projects, and from surface sediment layers obtained from lake cores. Pre-industrial baseline conditions as well as the nature, direction and magnitude of changes in diatom assemblages over the past c. 200 years were determined by comparing surface sediment samples (i.e. containing modern assemblages) with a sediment interval deposited prior to the onset of significant anthropogenic activities (i.e. containing pre-1850 assemblages), together with an examination of diatoms preserved in contiguous samples from dated sediment cores. We identified several biotypes with distinct diatom assemblages using contemporary diatom data from both lakes and streams, including a biotype typical for High Arctic regions. Differences in diatom assemblage composition across circum-Arctic regions were gradual rather than abrupt. Species richness was lowest in High Arctic regions compared to Low Arctic and sub-Arctic regions, and higher in lakes than in streams. Dominant diatom taxa were not endemic to the Arctic. Species richness in both lakes and streams reached maximum values between 60°N and 75°N but was highly variable, probably reflecting differences in local and regional environmental factors and ... Article in Journal/Newspaper Arctic Arctic Global warming University of Copenhagen: Research Arctic Freshwater Biology 67 1 116 140 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
circumpolar diatom biotypes environmental monitoring global warming paleolimnology |
spellingShingle |
circumpolar diatom biotypes environmental monitoring global warming paleolimnology Kahlert, Maria Rühland, Kathleen M. Lavoie, Isabelle Keck, François Saulnier-Talbot, Emilie Bogan, Daniel Brua, Robert B. Campeau, Stéphane Christoffersen, Kirsten S. Culp, Joseph M. Karjalainen, Satu Maaria Lento, Jennifer Schneider, Susanne C. Shaftel, Rebecca Smol, John P. Biodiversity patterns of Arctic diatom assemblages in lakes and streams:Current reference conditions and historical context for biomonitoring |
topic_facet |
circumpolar diatom biotypes environmental monitoring global warming paleolimnology |
description |
Comprehensive assessments of contemporary diatom distributions across the Arctic remain scarce. Furthermore, studies tracking species compositional differences across space and time, as well as diatom responses to climate warming, are mainly limited to paleolimnological studies due to a lack of routine monitoring in lakes and streams across vast areas of the Arctic. The study aims to provide a spatial assessment of contemporary species distributions across the circum-Arctic, establish contemporary biodiversity patterns of diatom assemblages to use as reference conditions for future biomonitoring assessments, and determine pre-industrial baseline conditions to provide historical context for modern diatom distributions. Diatom assemblages were assessed using information from ongoing regulatory monitoring programmes, individual research projects, and from surface sediment layers obtained from lake cores. Pre-industrial baseline conditions as well as the nature, direction and magnitude of changes in diatom assemblages over the past c. 200 years were determined by comparing surface sediment samples (i.e. containing modern assemblages) with a sediment interval deposited prior to the onset of significant anthropogenic activities (i.e. containing pre-1850 assemblages), together with an examination of diatoms preserved in contiguous samples from dated sediment cores. We identified several biotypes with distinct diatom assemblages using contemporary diatom data from both lakes and streams, including a biotype typical for High Arctic regions. Differences in diatom assemblage composition across circum-Arctic regions were gradual rather than abrupt. Species richness was lowest in High Arctic regions compared to Low Arctic and sub-Arctic regions, and higher in lakes than in streams. Dominant diatom taxa were not endemic to the Arctic. Species richness in both lakes and streams reached maximum values between 60°N and 75°N but was highly variable, probably reflecting differences in local and regional environmental factors and ... |
format |
Article in Journal/Newspaper |
author |
Kahlert, Maria Rühland, Kathleen M. Lavoie, Isabelle Keck, François Saulnier-Talbot, Emilie Bogan, Daniel Brua, Robert B. Campeau, Stéphane Christoffersen, Kirsten S. Culp, Joseph M. Karjalainen, Satu Maaria Lento, Jennifer Schneider, Susanne C. Shaftel, Rebecca Smol, John P. |
author_facet |
Kahlert, Maria Rühland, Kathleen M. Lavoie, Isabelle Keck, François Saulnier-Talbot, Emilie Bogan, Daniel Brua, Robert B. Campeau, Stéphane Christoffersen, Kirsten S. Culp, Joseph M. Karjalainen, Satu Maaria Lento, Jennifer Schneider, Susanne C. Shaftel, Rebecca Smol, John P. |
author_sort |
Kahlert, Maria |
title |
Biodiversity patterns of Arctic diatom assemblages in lakes and streams:Current reference conditions and historical context for biomonitoring |
title_short |
Biodiversity patterns of Arctic diatom assemblages in lakes and streams:Current reference conditions and historical context for biomonitoring |
title_full |
Biodiversity patterns of Arctic diatom assemblages in lakes and streams:Current reference conditions and historical context for biomonitoring |
title_fullStr |
Biodiversity patterns of Arctic diatom assemblages in lakes and streams:Current reference conditions and historical context for biomonitoring |
title_full_unstemmed |
Biodiversity patterns of Arctic diatom assemblages in lakes and streams:Current reference conditions and historical context for biomonitoring |
title_sort |
biodiversity patterns of arctic diatom assemblages in lakes and streams:current reference conditions and historical context for biomonitoring |
publishDate |
2022 |
url |
https://curis.ku.dk/portal/da/publications/biodiversity-patterns-of-arctic-diatom-assemblages-in-lakes-and-streams(a497c914-7d1d-4a2e-89f1-1cef1df387ff).html https://doi.org/10.1111/fwb.13490 https://curis.ku.dk/ws/files/290256876/Biodiversity_patterns_of_Arctic_diatom_assemblages_in_lakes_and_streams.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Global warming |
genre_facet |
Arctic Arctic Global warming |
op_source |
Kahlert , M , Rühland , K M , Lavoie , I , Keck , F , Saulnier-Talbot , E , Bogan , D , Brua , R B , Campeau , S , Christoffersen , K S , Culp , J M , Karjalainen , S M , Lento , J , Schneider , S C , Shaftel , R & Smol , J P 2022 , ' Biodiversity patterns of Arctic diatom assemblages in lakes and streams : Current reference conditions and historical context for biomonitoring ' , Freshwater Biology , vol. 67 , no. 1 , pp. 116-140 . https://doi.org/10.1111/fwb.13490 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/fwb.13490 |
container_title |
Freshwater Biology |
container_volume |
67 |
container_issue |
1 |
container_start_page |
116 |
op_container_end_page |
140 |
_version_ |
1801371355221852160 |