Deciphering the effect of climate change and separating the influence of confounding factors in sediment core records using additive models
We describe a new approach to modeling sediment core records, one that uses additive models (AMs) incorporating a serial correlation structure to model residual autocorrelation. Species assemblages, for example, are reduced to ordination axis scores that capture major changes in the data through tim...
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crwiley:10.4319/lo.2009.54.6_part_2.2529 2024-09-09T19:59:40+00:00 Deciphering the effect of climate change and separating the influence of confounding factors in sediment core records using additive models Simpsona, Gavin L. Anderson, N. J. 2009 http://dx.doi.org/10.4319/lo.2009.54.6_part_2.2529 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2009.54.6_part_2.2529 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2009.54.6_part_2.2529 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 54, issue 6part2, page 2529-2541 ISSN 0024-3590 1939-5590 journal-article 2009 crwiley https://doi.org/10.4319/lo.2009.54.6_part_2.2529 2024-08-13T04:14:57Z We describe a new approach to modeling sediment core records, one that uses additive models (AMs) incorporating a serial correlation structure to model residual autocorrelation. Species assemblages, for example, are reduced to ordination axis scores that capture major changes in the data through time. Each set of axis scores is then modeled using an AM, where covariates represent forcing variables (e.g., tree‐ring‐inferred temperature or proxies for atmospheric deposition) and/or trend and, where necessary, periodic components. The effect of forcing variables on species composition through time can be determined via the contribution each covariate makes to the fitted model, which can be used to separate effects due to competing forcing variables. We illustrate the approach using data from Kassjön, northern Sweden, and Loch Coire Fionnaraich, northwest Scotland. Article in Journal/Newspaper Northern Sweden Wiley Online Library Limnology and Oceanography 54 6part2 2529 2541 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
We describe a new approach to modeling sediment core records, one that uses additive models (AMs) incorporating a serial correlation structure to model residual autocorrelation. Species assemblages, for example, are reduced to ordination axis scores that capture major changes in the data through time. Each set of axis scores is then modeled using an AM, where covariates represent forcing variables (e.g., tree‐ring‐inferred temperature or proxies for atmospheric deposition) and/or trend and, where necessary, periodic components. The effect of forcing variables on species composition through time can be determined via the contribution each covariate makes to the fitted model, which can be used to separate effects due to competing forcing variables. We illustrate the approach using data from Kassjön, northern Sweden, and Loch Coire Fionnaraich, northwest Scotland. |
format |
Article in Journal/Newspaper |
author |
Simpsona, Gavin L. Anderson, N. J. |
spellingShingle |
Simpsona, Gavin L. Anderson, N. J. Deciphering the effect of climate change and separating the influence of confounding factors in sediment core records using additive models |
author_facet |
Simpsona, Gavin L. Anderson, N. J. |
author_sort |
Simpsona, Gavin L. |
title |
Deciphering the effect of climate change and separating the influence of confounding factors in sediment core records using additive models |
title_short |
Deciphering the effect of climate change and separating the influence of confounding factors in sediment core records using additive models |
title_full |
Deciphering the effect of climate change and separating the influence of confounding factors in sediment core records using additive models |
title_fullStr |
Deciphering the effect of climate change and separating the influence of confounding factors in sediment core records using additive models |
title_full_unstemmed |
Deciphering the effect of climate change and separating the influence of confounding factors in sediment core records using additive models |
title_sort |
deciphering the effect of climate change and separating the influence of confounding factors in sediment core records using additive models |
publisher |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.4319/lo.2009.54.6_part_2.2529 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2009.54.6_part_2.2529 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2009.54.6_part_2.2529 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Limnology and Oceanography volume 54, issue 6part2, page 2529-2541 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.2009.54.6_part_2.2529 |
container_title |
Limnology and Oceanography |
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54 |
container_issue |
6part2 |
container_start_page |
2529 |
op_container_end_page |
2541 |
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1809930765145735168 |