Utility of Dendrochronology Crossdating Methods in the Development of Arctic Coralline Red Algae Clathromorphum compactum Growth Increment Chronology for Sea Ice Cover Reconstruction
Paleoclimate and paleoenvironmental reconstructions from increment-yielding archives strongly depend on precise age models. Like bivalves, corals, trees, and speleothems, the coralline alga Clathromorphum compactum produces annual growth increments and shows considerable promise as an environmental...
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2022
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ftdoajarticles:oai:doaj.org/article:84e5844dcfa64894ae16a6b7bbd87013 2023-05-15T14:56:46+02:00 Utility of Dendrochronology Crossdating Methods in the Development of Arctic Coralline Red Algae Clathromorphum compactum Growth Increment Chronology for Sea Ice Cover Reconstruction Natasha Leclerc Jochen Halfar Trevor J. Porter Bryan A. Black Steffen Hetzinger Meghan Zulian Alexandra Tsay 2022-06-01T00:00:00Z https://doi.org/10.3389/fmars.2022.923088 https://doaj.org/article/84e5844dcfa64894ae16a6b7bbd87013 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2022.923088/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.923088 https://doaj.org/article/84e5844dcfa64894ae16a6b7bbd87013 Frontiers in Marine Science, Vol 9 (2022) Coralline red algae Sea ice proxy crossdating sclerochronology growth increments dendrochronology Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2022 ftdoajarticles https://doi.org/10.3389/fmars.2022.923088 2022-12-31T02:53:34Z Paleoclimate and paleoenvironmental reconstructions from increment-yielding archives strongly depend on precise age models. Like bivalves, corals, trees, and speleothems, the coralline alga Clathromorphum compactum produces annual growth increments and shows considerable promise as an environmental archive for arctic and subarctic regions. Though their growth increment widths correlate with temperature and sea ice cover in high Arctic regions, existing timeseries have not been crossdated. In fact, previous studies have shown a lack of inter-sample correlation in non-crossdated timeseries suggesting possible age model dating errors. Here, we use dendrochronology crossdating techniques and COFECHA software to ensure and validate synchrony between C. compactum timeseries (<141 years) from three specimens collected near Beechey Island, Nunavut, Canada. Results showed that non-crossdated timeseries constructed by four coralline red algae researchers using annual increments of the same C. compactum samples were highly variable and showcase the likelihood of dating errors in non-crossdated timeseries. Crossdating improved inter-series correlations, and correlations to sea ice-related records, suggesting that at least three crossdated timeseries are required to isolate paleoclimate signals. Our findings suggest that future reconstructions with C. compactum should employ crossdating techniques to reduce dating errors and allow for more precise climate reconstructions.Lay AbstractLong-term environmental records provide a critical baseline to examine how humans have impacted Earth’s natural climate. An important piece to consider is sea ice’s role in natural climate variability because its brightness limits warming by reflecting solar irradiation back to space. However, instrumental records of sea ice rarely extend beyond the early satellite era (late 1970s), limiting our understanding of how sea ice affects natural climate variability in the preindustrial era. A lack of historical baseline prompted the development of ... Article in Journal/Newspaper Arctic Nunavut Sea ice Subarctic Directory of Open Access Journals: DOAJ Articles Arctic Beechey Island ENVELOPE(-91.851,-91.851,74.718,74.718) Canada Nunavut Frontiers in Marine Science 9 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Coralline red algae Sea ice proxy crossdating sclerochronology growth increments dendrochronology Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
Coralline red algae Sea ice proxy crossdating sclerochronology growth increments dendrochronology Science Q General. Including nature conservation geographical distribution QH1-199.5 Natasha Leclerc Jochen Halfar Trevor J. Porter Bryan A. Black Steffen Hetzinger Meghan Zulian Alexandra Tsay Utility of Dendrochronology Crossdating Methods in the Development of Arctic Coralline Red Algae Clathromorphum compactum Growth Increment Chronology for Sea Ice Cover Reconstruction |
topic_facet |
Coralline red algae Sea ice proxy crossdating sclerochronology growth increments dendrochronology Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Paleoclimate and paleoenvironmental reconstructions from increment-yielding archives strongly depend on precise age models. Like bivalves, corals, trees, and speleothems, the coralline alga Clathromorphum compactum produces annual growth increments and shows considerable promise as an environmental archive for arctic and subarctic regions. Though their growth increment widths correlate with temperature and sea ice cover in high Arctic regions, existing timeseries have not been crossdated. In fact, previous studies have shown a lack of inter-sample correlation in non-crossdated timeseries suggesting possible age model dating errors. Here, we use dendrochronology crossdating techniques and COFECHA software to ensure and validate synchrony between C. compactum timeseries (<141 years) from three specimens collected near Beechey Island, Nunavut, Canada. Results showed that non-crossdated timeseries constructed by four coralline red algae researchers using annual increments of the same C. compactum samples were highly variable and showcase the likelihood of dating errors in non-crossdated timeseries. Crossdating improved inter-series correlations, and correlations to sea ice-related records, suggesting that at least three crossdated timeseries are required to isolate paleoclimate signals. Our findings suggest that future reconstructions with C. compactum should employ crossdating techniques to reduce dating errors and allow for more precise climate reconstructions.Lay AbstractLong-term environmental records provide a critical baseline to examine how humans have impacted Earth’s natural climate. An important piece to consider is sea ice’s role in natural climate variability because its brightness limits warming by reflecting solar irradiation back to space. However, instrumental records of sea ice rarely extend beyond the early satellite era (late 1970s), limiting our understanding of how sea ice affects natural climate variability in the preindustrial era. A lack of historical baseline prompted the development of ... |
format |
Article in Journal/Newspaper |
author |
Natasha Leclerc Jochen Halfar Trevor J. Porter Bryan A. Black Steffen Hetzinger Meghan Zulian Alexandra Tsay |
author_facet |
Natasha Leclerc Jochen Halfar Trevor J. Porter Bryan A. Black Steffen Hetzinger Meghan Zulian Alexandra Tsay |
author_sort |
Natasha Leclerc |
title |
Utility of Dendrochronology Crossdating Methods in the Development of Arctic Coralline Red Algae Clathromorphum compactum Growth Increment Chronology for Sea Ice Cover Reconstruction |
title_short |
Utility of Dendrochronology Crossdating Methods in the Development of Arctic Coralline Red Algae Clathromorphum compactum Growth Increment Chronology for Sea Ice Cover Reconstruction |
title_full |
Utility of Dendrochronology Crossdating Methods in the Development of Arctic Coralline Red Algae Clathromorphum compactum Growth Increment Chronology for Sea Ice Cover Reconstruction |
title_fullStr |
Utility of Dendrochronology Crossdating Methods in the Development of Arctic Coralline Red Algae Clathromorphum compactum Growth Increment Chronology for Sea Ice Cover Reconstruction |
title_full_unstemmed |
Utility of Dendrochronology Crossdating Methods in the Development of Arctic Coralline Red Algae Clathromorphum compactum Growth Increment Chronology for Sea Ice Cover Reconstruction |
title_sort |
utility of dendrochronology crossdating methods in the development of arctic coralline red algae clathromorphum compactum growth increment chronology for sea ice cover reconstruction |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmars.2022.923088 https://doaj.org/article/84e5844dcfa64894ae16a6b7bbd87013 |
long_lat |
ENVELOPE(-91.851,-91.851,74.718,74.718) |
geographic |
Arctic Beechey Island Canada Nunavut |
geographic_facet |
Arctic Beechey Island Canada Nunavut |
genre |
Arctic Nunavut Sea ice Subarctic |
genre_facet |
Arctic Nunavut Sea ice Subarctic |
op_source |
Frontiers in Marine Science, Vol 9 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2022.923088/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.923088 https://doaj.org/article/84e5844dcfa64894ae16a6b7bbd87013 |
op_doi |
https://doi.org/10.3389/fmars.2022.923088 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
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1766328847661268992 |