Heightened sensitivity of a poorly buffered high arctic lake to late-Holocene climatic change
Abstract A diatom-based paleolimnological investigation was conducted on late Holocene sediments from a poorly buffered lake, informally named “Rock Basin Lake”, on Ellesmere Island, Arctic Canada. The fossil diatom record is unlike any other obtained thus far from high arctic regions, exhibiting dy...
Published in: | Quaternary Research |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2006
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1016/j.yqres.2006.02.001 http://api.elsevier.com/content/article/PII:S0033589406000135?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589406000135?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400027587 |
id |
crcambridgeupr:10.1016/j.yqres.2006.02.001 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1016/j.yqres.2006.02.001 2024-06-09T07:43:14+00:00 Heightened sensitivity of a poorly buffered high arctic lake to late-Holocene climatic change Michelutti, Neal Douglas, Marianne S.V. Wolfe, Alexander P. Smol, John P. 2006 http://dx.doi.org/10.1016/j.yqres.2006.02.001 http://api.elsevier.com/content/article/PII:S0033589406000135?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589406000135?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400027587 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 65, issue 3, page 421-430 ISSN 0033-5894 1096-0287 journal-article 2006 crcambridgeupr https://doi.org/10.1016/j.yqres.2006.02.001 2024-05-15T13:02:25Z Abstract A diatom-based paleolimnological investigation was conducted on late Holocene sediments from a poorly buffered lake, informally named “Rock Basin Lake”, on Ellesmere Island, Arctic Canada. The fossil diatom record is unlike any other obtained thus far from high arctic regions, exhibiting dynamic assemblage shifts over the entire ∼3300 yr sedimentary record. Multiple proxies (i.e., diatoms, pH reconstructions, biogenic silica, C / N ratios, total organic carbon) appear to sensitively track rapid limnological changes, which are associated with distinct climate intervals as inferred from other regional proxy records. The highly responsive nature of the diatom assemblages in Rock Basin Lake, relative to those recorded from nearby alkaline sites, appears to be related to this lake's limited ability to buffer changes in pH. The dynamic species responses suggest that the diatoms in Rock Basin Lake are faithfully tracking climatic changes, and that low-alkalinity lakes may provide the most sensitive diatom-based paleolimnological records from high arctic regions. Article in Journal/Newspaper Arctic Ellesmere Island Cambridge University Press Arctic Ellesmere Island Canada Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Basin Lake ENVELOPE(-71.750,-71.750,67.083,67.083) Quaternary Research 65 3 421 430 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract A diatom-based paleolimnological investigation was conducted on late Holocene sediments from a poorly buffered lake, informally named “Rock Basin Lake”, on Ellesmere Island, Arctic Canada. The fossil diatom record is unlike any other obtained thus far from high arctic regions, exhibiting dynamic assemblage shifts over the entire ∼3300 yr sedimentary record. Multiple proxies (i.e., diatoms, pH reconstructions, biogenic silica, C / N ratios, total organic carbon) appear to sensitively track rapid limnological changes, which are associated with distinct climate intervals as inferred from other regional proxy records. The highly responsive nature of the diatom assemblages in Rock Basin Lake, relative to those recorded from nearby alkaline sites, appears to be related to this lake's limited ability to buffer changes in pH. The dynamic species responses suggest that the diatoms in Rock Basin Lake are faithfully tracking climatic changes, and that low-alkalinity lakes may provide the most sensitive diatom-based paleolimnological records from high arctic regions. |
format |
Article in Journal/Newspaper |
author |
Michelutti, Neal Douglas, Marianne S.V. Wolfe, Alexander P. Smol, John P. |
spellingShingle |
Michelutti, Neal Douglas, Marianne S.V. Wolfe, Alexander P. Smol, John P. Heightened sensitivity of a poorly buffered high arctic lake to late-Holocene climatic change |
author_facet |
Michelutti, Neal Douglas, Marianne S.V. Wolfe, Alexander P. Smol, John P. |
author_sort |
Michelutti, Neal |
title |
Heightened sensitivity of a poorly buffered high arctic lake to late-Holocene climatic change |
title_short |
Heightened sensitivity of a poorly buffered high arctic lake to late-Holocene climatic change |
title_full |
Heightened sensitivity of a poorly buffered high arctic lake to late-Holocene climatic change |
title_fullStr |
Heightened sensitivity of a poorly buffered high arctic lake to late-Holocene climatic change |
title_full_unstemmed |
Heightened sensitivity of a poorly buffered high arctic lake to late-Holocene climatic change |
title_sort |
heightened sensitivity of a poorly buffered high arctic lake to late-holocene climatic change |
publisher |
Cambridge University Press (CUP) |
publishDate |
2006 |
url |
http://dx.doi.org/10.1016/j.yqres.2006.02.001 http://api.elsevier.com/content/article/PII:S0033589406000135?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589406000135?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400027587 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) ENVELOPE(-71.750,-71.750,67.083,67.083) |
geographic |
Arctic Ellesmere Island Canada Arctic Lake Basin Lake |
geographic_facet |
Arctic Ellesmere Island Canada Arctic Lake Basin Lake |
genre |
Arctic Ellesmere Island |
genre_facet |
Arctic Ellesmere Island |
op_source |
Quaternary Research volume 65, issue 3, page 421-430 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/j.yqres.2006.02.001 |
container_title |
Quaternary Research |
container_volume |
65 |
container_issue |
3 |
container_start_page |
421 |
op_container_end_page |
430 |
_version_ |
1801371984859234304 |