Dynamic diatom response to changing climate 0–1.2 Ma at Lake El'gygytgyn, Far East Russian Arctic
The Lake El'gygytgyn sediment record contains an abundant diatom flora through most intervals of the lake's history, providing a means to create and test hypotheses concerning the lake's response to changing climates. The 0–1.2 Ma core interval is characterized by shifts in the domina...
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ftdoajarticles:oai:doaj.org/article:0482b11b810d45858df632b2055762ac 2023-05-15T15:05:33+02:00 Dynamic diatom response to changing climate 0–1.2 Ma at Lake El'gygytgyn, Far East Russian Arctic J. A. Snyder M. V. Cherepanova A. Bryan 2013-06-01T00:00:00Z https://doi.org/10.5194/cp-9-1309-2013 https://doaj.org/article/0482b11b810d45858df632b2055762ac EN eng Copernicus Publications http://www.clim-past.net/9/1309/2013/cp-9-1309-2013.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-9-1309-2013 1814-9324 1814-9332 https://doaj.org/article/0482b11b810d45858df632b2055762ac Climate of the Past, Vol 9, Iss 3, Pp 1309-1319 (2013) Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 article 2013 ftdoajarticles https://doi.org/10.5194/cp-9-1309-2013 2022-12-31T13:09:49Z The Lake El'gygytgyn sediment record contains an abundant diatom flora through most intervals of the lake's history, providing a means to create and test hypotheses concerning the lake's response to changing climates. The 0–1.2 Ma core interval is characterized by shifts in the dominant planktonic genera and events of exceptional concentration and diversity. Warm interglacial intervals have enhanced concentration and diversity of the plankton. This response is most extreme during exceptional events corresponding to marine isotope stages (MIS) 11 and 31. Diatom concentration and diversity also increase during some cold intervals (e.g., MIS 2), suggesting conditions of lake circulation and nutrient cycling promoting diatom production during these events. Short intervals of low plankton concentration accompanied by shifts in the dominant genus of the lake suggest conditions during certain cold events generate a severe impact on plankton production. The absence of these events during extended intervals of low summer insolation variability suggests a muted cold-event response of the lake system linked to regional climate. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Climate of the Past 9 3 1309 1319 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
spellingShingle |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 J. A. Snyder M. V. Cherepanova A. Bryan Dynamic diatom response to changing climate 0–1.2 Ma at Lake El'gygytgyn, Far East Russian Arctic |
topic_facet |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
description |
The Lake El'gygytgyn sediment record contains an abundant diatom flora through most intervals of the lake's history, providing a means to create and test hypotheses concerning the lake's response to changing climates. The 0–1.2 Ma core interval is characterized by shifts in the dominant planktonic genera and events of exceptional concentration and diversity. Warm interglacial intervals have enhanced concentration and diversity of the plankton. This response is most extreme during exceptional events corresponding to marine isotope stages (MIS) 11 and 31. Diatom concentration and diversity also increase during some cold intervals (e.g., MIS 2), suggesting conditions of lake circulation and nutrient cycling promoting diatom production during these events. Short intervals of low plankton concentration accompanied by shifts in the dominant genus of the lake suggest conditions during certain cold events generate a severe impact on plankton production. The absence of these events during extended intervals of low summer insolation variability suggests a muted cold-event response of the lake system linked to regional climate. |
format |
Article in Journal/Newspaper |
author |
J. A. Snyder M. V. Cherepanova A. Bryan |
author_facet |
J. A. Snyder M. V. Cherepanova A. Bryan |
author_sort |
J. A. Snyder |
title |
Dynamic diatom response to changing climate 0–1.2 Ma at Lake El'gygytgyn, Far East Russian Arctic |
title_short |
Dynamic diatom response to changing climate 0–1.2 Ma at Lake El'gygytgyn, Far East Russian Arctic |
title_full |
Dynamic diatom response to changing climate 0–1.2 Ma at Lake El'gygytgyn, Far East Russian Arctic |
title_fullStr |
Dynamic diatom response to changing climate 0–1.2 Ma at Lake El'gygytgyn, Far East Russian Arctic |
title_full_unstemmed |
Dynamic diatom response to changing climate 0–1.2 Ma at Lake El'gygytgyn, Far East Russian Arctic |
title_sort |
dynamic diatom response to changing climate 0–1.2 ma at lake el'gygytgyn, far east russian arctic |
publisher |
Copernicus Publications |
publishDate |
2013 |
url |
https://doi.org/10.5194/cp-9-1309-2013 https://doaj.org/article/0482b11b810d45858df632b2055762ac |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Climate of the Past, Vol 9, Iss 3, Pp 1309-1319 (2013) |
op_relation |
http://www.clim-past.net/9/1309/2013/cp-9-1309-2013.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-9-1309-2013 1814-9324 1814-9332 https://doaj.org/article/0482b11b810d45858df632b2055762ac |
op_doi |
https://doi.org/10.5194/cp-9-1309-2013 |
container_title |
Climate of the Past |
container_volume |
9 |
container_issue |
3 |
container_start_page |
1309 |
op_container_end_page |
1319 |
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1766337229962084352 |