Climate-related morphological changes in Pantocsekiella (Mediophyceae) spanning 0-1.2 Ma in the Lake El’gygytgyn, northeastern Russia including Pantocsekiella elgygytgynensis sp. nov.
The distribution of diatom species and their evolutionary histories are largely a result of the complex feedback mechanisms in their environment. Arctic lakes are particularly sensitive to climate changes, and the species within these environments reflect these histories. The diatom genus Pantocseki...
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ftmagnoliapress:oai:ojs.mapress.com:article/40905 2023-05-15T14:50:56+02:00 Climate-related morphological changes in Pantocsekiella (Mediophyceae) spanning 0-1.2 Ma in the Lake El’gygytgyn, northeastern Russia including Pantocsekiella elgygytgynensis sp. nov. LUETHJE, MELINA SNYDER, JEFFREY 2021-01-05 application/pdf https://www.mapress.com/j/pt/article/view/phytotaxa.478.1.5 https://doi.org/10.11646/phytotaxa.478.1.5 eng eng Phytotaxa https://www.mapress.com/j/pt/article/view/phytotaxa.478.1.5/42379 https://www.mapress.com/j/pt/article/view/phytotaxa.478.1.5 doi:10.11646/phytotaxa.478.1.5 Copyright (c) 2021 Phytotaxa Phytotaxa; Vol 478, No 1: 5 January 2021; 67–91 1179-3163 1179-3155 10.11646/phytotaxa.478.1 Lindavia Cyclotella Thalassiosirales Stephanodiscaceae diatoms Lake El’gygytgyn Arctic ancient lakes Algae info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftmagnoliapress https://doi.org/10.11646/phytotaxa.478.1.5 https://doi.org/10.11646/phytotaxa.478.1 2021-01-12T17:55:51Z The distribution of diatom species and their evolutionary histories are largely a result of the complex feedback mechanisms in their environment. Arctic lakes are particularly sensitive to climate changes, and the species within these environments reflect these histories. The diatom genus Pantocsekiella is widespread and notably morphologically diverse. Valves from Pantocsekiella in the Arctic Lake El’gygytgyn spanning the last 1.2 Ma were analyzed using light and scanning electron microscopy to investigate how morphological transitions are related to known regional climate events. Quantitative and qualitative observations yielded a high degree of morphological diversity with multiple morphological shifts often associated with inferred extreme cold events. Principal components analysis (PCA) on quantitative morphological variables demonstrates a gradient in morphological variability through time, with a distinct morphology persisting uninterrupted from ~550-~230 ka warranting the establishment of a new species. Valve size within this interval responds to interglacial-glacial cycles, with the largest initial valves occurring during interglacials suggesting sensitivity to lake conditions related to climate. Article in Journal/Newspaper Arctic Magnolia press Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Phytotaxa 478 1 67 91 |
institution |
Open Polar |
collection |
Magnolia press |
op_collection_id |
ftmagnoliapress |
language |
English |
topic |
Lindavia Cyclotella Thalassiosirales Stephanodiscaceae diatoms Lake El’gygytgyn Arctic ancient lakes Algae |
spellingShingle |
Lindavia Cyclotella Thalassiosirales Stephanodiscaceae diatoms Lake El’gygytgyn Arctic ancient lakes Algae LUETHJE, MELINA SNYDER, JEFFREY Climate-related morphological changes in Pantocsekiella (Mediophyceae) spanning 0-1.2 Ma in the Lake El’gygytgyn, northeastern Russia including Pantocsekiella elgygytgynensis sp. nov. |
topic_facet |
Lindavia Cyclotella Thalassiosirales Stephanodiscaceae diatoms Lake El’gygytgyn Arctic ancient lakes Algae |
description |
The distribution of diatom species and their evolutionary histories are largely a result of the complex feedback mechanisms in their environment. Arctic lakes are particularly sensitive to climate changes, and the species within these environments reflect these histories. The diatom genus Pantocsekiella is widespread and notably morphologically diverse. Valves from Pantocsekiella in the Arctic Lake El’gygytgyn spanning the last 1.2 Ma were analyzed using light and scanning electron microscopy to investigate how morphological transitions are related to known regional climate events. Quantitative and qualitative observations yielded a high degree of morphological diversity with multiple morphological shifts often associated with inferred extreme cold events. Principal components analysis (PCA) on quantitative morphological variables demonstrates a gradient in morphological variability through time, with a distinct morphology persisting uninterrupted from ~550-~230 ka warranting the establishment of a new species. Valve size within this interval responds to interglacial-glacial cycles, with the largest initial valves occurring during interglacials suggesting sensitivity to lake conditions related to climate. |
format |
Article in Journal/Newspaper |
author |
LUETHJE, MELINA SNYDER, JEFFREY |
author_facet |
LUETHJE, MELINA SNYDER, JEFFREY |
author_sort |
LUETHJE, MELINA |
title |
Climate-related morphological changes in Pantocsekiella (Mediophyceae) spanning 0-1.2 Ma in the Lake El’gygytgyn, northeastern Russia including Pantocsekiella elgygytgynensis sp. nov. |
title_short |
Climate-related morphological changes in Pantocsekiella (Mediophyceae) spanning 0-1.2 Ma in the Lake El’gygytgyn, northeastern Russia including Pantocsekiella elgygytgynensis sp. nov. |
title_full |
Climate-related morphological changes in Pantocsekiella (Mediophyceae) spanning 0-1.2 Ma in the Lake El’gygytgyn, northeastern Russia including Pantocsekiella elgygytgynensis sp. nov. |
title_fullStr |
Climate-related morphological changes in Pantocsekiella (Mediophyceae) spanning 0-1.2 Ma in the Lake El’gygytgyn, northeastern Russia including Pantocsekiella elgygytgynensis sp. nov. |
title_full_unstemmed |
Climate-related morphological changes in Pantocsekiella (Mediophyceae) spanning 0-1.2 Ma in the Lake El’gygytgyn, northeastern Russia including Pantocsekiella elgygytgynensis sp. nov. |
title_sort |
climate-related morphological changes in pantocsekiella (mediophyceae) spanning 0-1.2 ma in the lake el’gygytgyn, northeastern russia including pantocsekiella elgygytgynensis sp. nov. |
publisher |
Phytotaxa |
publishDate |
2021 |
url |
https://www.mapress.com/j/pt/article/view/phytotaxa.478.1.5 https://doi.org/10.11646/phytotaxa.478.1.5 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Arctic Lake |
geographic_facet |
Arctic Arctic Lake |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Phytotaxa; Vol 478, No 1: 5 January 2021; 67–91 1179-3163 1179-3155 10.11646/phytotaxa.478.1 |
op_relation |
https://www.mapress.com/j/pt/article/view/phytotaxa.478.1.5/42379 https://www.mapress.com/j/pt/article/view/phytotaxa.478.1.5 doi:10.11646/phytotaxa.478.1.5 |
op_rights |
Copyright (c) 2021 Phytotaxa |
op_doi |
https://doi.org/10.11646/phytotaxa.478.1.5 https://doi.org/10.11646/phytotaxa.478.1 |
container_title |
Phytotaxa |
container_volume |
478 |
container_issue |
1 |
container_start_page |
67 |
op_container_end_page |
91 |
_version_ |
1766321985532461056 |