Widespread synchrony in phosphorus concentrations in northern lakes linked to winter temperature and summer precipitation
In recent years, unexplained declines in lake total phosphorus (TP) concentrations have been observed at northern latitudes (> 42°N latitude) where most of the world's lakes are found. We compiled data from 389 lakes in Fennoscandia and eastern North America to investigate the effects of cli...
Published in: | Limnology and Oceanography Letters |
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Online Access: | https://doi.org/10.1002/lol2.10318 |
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fteawag:oai:dora:eawag_30279 2023-09-05T13:19:21+02:00 Widespread synchrony in phosphorus concentrations in northern lakes linked to winter temperature and summer precipitation Isles, Peter D.F. Creed, Irena F. Hessen, Dag O. Kortelainen, Pirkko Paterson, Michael Pomati, Francesco Rusak, James A. Vuorenmaa, Jussi Bergström, Ann Kristin 2023 https://doi.org/10.1002/lol2.10318 eng eng Wiley Limnology and Oceanography Letters--Limnol. Oceanogr. Lett.--journals:6471--2378-2242 eawag:30279 doi:10.1002/lol2.10318 scopus: 2-s2.0-85149478137 journal id: journals:6471 e-issn: 2378-2242 ut: 000943056500001 Journal Article Text 2023 fteawag https://doi.org/10.1002/lol2.10318 2023-08-13T23:51:38Z In recent years, unexplained declines in lake total phosphorus (TP) concentrations have been observed at northern latitudes (> 42°N latitude) where most of the world's lakes are found. We compiled data from 389 lakes in Fennoscandia and eastern North America to investigate the effects of climate on lake TP concentrations. Synchrony in year-to-year variability is an indicator of climatic influences on lake TP, because other major influences on nutrients (e.g., land use change) are not likely to affect all lakes in the same year. We identified significant synchrony in lake TP both within and among different geographic regions. Using a bootstrapped random forest analysis, we identified winter temperature as the most important factor controlling annual TP, followed by summer precipitation. In Fennoscandia, TP was negatively correlated with the winter East Atlantic Pattern, which is associated with regionally warmer winters. Our results suggest that, in the absence of other overriding factors, lake TP and productivity may decline with continued winter warming in northern lakes. Article in Journal/Newspaper Fennoscandia DORA Eawag Limnology and Oceanography Letters |
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Open Polar |
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language |
English |
description |
In recent years, unexplained declines in lake total phosphorus (TP) concentrations have been observed at northern latitudes (> 42°N latitude) where most of the world's lakes are found. We compiled data from 389 lakes in Fennoscandia and eastern North America to investigate the effects of climate on lake TP concentrations. Synchrony in year-to-year variability is an indicator of climatic influences on lake TP, because other major influences on nutrients (e.g., land use change) are not likely to affect all lakes in the same year. We identified significant synchrony in lake TP both within and among different geographic regions. Using a bootstrapped random forest analysis, we identified winter temperature as the most important factor controlling annual TP, followed by summer precipitation. In Fennoscandia, TP was negatively correlated with the winter East Atlantic Pattern, which is associated with regionally warmer winters. Our results suggest that, in the absence of other overriding factors, lake TP and productivity may decline with continued winter warming in northern lakes. |
format |
Article in Journal/Newspaper |
author |
Isles, Peter D.F. Creed, Irena F. Hessen, Dag O. Kortelainen, Pirkko Paterson, Michael Pomati, Francesco Rusak, James A. Vuorenmaa, Jussi Bergström, Ann Kristin |
spellingShingle |
Isles, Peter D.F. Creed, Irena F. Hessen, Dag O. Kortelainen, Pirkko Paterson, Michael Pomati, Francesco Rusak, James A. Vuorenmaa, Jussi Bergström, Ann Kristin Widespread synchrony in phosphorus concentrations in northern lakes linked to winter temperature and summer precipitation |
author_facet |
Isles, Peter D.F. Creed, Irena F. Hessen, Dag O. Kortelainen, Pirkko Paterson, Michael Pomati, Francesco Rusak, James A. Vuorenmaa, Jussi Bergström, Ann Kristin |
author_sort |
Isles, Peter D.F. |
title |
Widespread synchrony in phosphorus concentrations in northern lakes linked to winter temperature and summer precipitation |
title_short |
Widespread synchrony in phosphorus concentrations in northern lakes linked to winter temperature and summer precipitation |
title_full |
Widespread synchrony in phosphorus concentrations in northern lakes linked to winter temperature and summer precipitation |
title_fullStr |
Widespread synchrony in phosphorus concentrations in northern lakes linked to winter temperature and summer precipitation |
title_full_unstemmed |
Widespread synchrony in phosphorus concentrations in northern lakes linked to winter temperature and summer precipitation |
title_sort |
widespread synchrony in phosphorus concentrations in northern lakes linked to winter temperature and summer precipitation |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1002/lol2.10318 |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_relation |
Limnology and Oceanography Letters--Limnol. Oceanogr. Lett.--journals:6471--2378-2242 eawag:30279 doi:10.1002/lol2.10318 scopus: 2-s2.0-85149478137 journal id: journals:6471 e-issn: 2378-2242 ut: 000943056500001 |
op_doi |
https://doi.org/10.1002/lol2.10318 |
container_title |
Limnology and Oceanography Letters |
_version_ |
1776200148911652864 |