Testate amoeba as palaeohydrological indicators in the permafrost peatlands of north‐east European Russia and Finnish Lapland
ABSTRACT To explore the use of testate amoeba for investigating the impacts of climate change on permafrost peatland hydrology, we established a new modern training set from Arctic permafrost peatlands in north‐east European Russia and Finnish Lapland. Ordination analyses showed that water‐table dep...
Published in: | Journal of Quaternary Science |
---|---|
Main Authors: | , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2017
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/jqs.2970 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2970 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2970 |
id |
crwiley:10.1002/jqs.2970 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/jqs.2970 2024-06-23T07:50:02+00:00 Testate amoeba as palaeohydrological indicators in the permafrost peatlands of north‐east European Russia and Finnish Lapland Zhang, Hui Amesbury, Matthew J. Ronkainen, Tiina Charman, Dan J. Gallego‐Sala, Angela V. VÄliranta, Minna China Scholarship Council 2017 http://dx.doi.org/10.1002/jqs.2970 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2970 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2970 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 32, issue 7, page 976-988 ISSN 0267-8179 1099-1417 journal-article 2017 crwiley https://doi.org/10.1002/jqs.2970 2024-06-04T06:44:41Z ABSTRACT To explore the use of testate amoeba for investigating the impacts of climate change on permafrost peatland hydrology, we established a new modern training set from Arctic permafrost peatlands in north‐east European Russia and Finnish Lapland. Ordination analyses showed that water‐table depth (WTD) was the most important control on testate amoeba distribution. We developed a new testate amoeba‐based WTD transfer function and thoroughly tested it. We found that our transfer function had strong predictive power. The best‐performing model was based on tolerance‐downweighted weighted averaging with inverse deshrinking ( R 2 = 0.77, RMSEP = 5.62 cm with leave‐one‐out cross validation). The new transfer function was applied to a short peat core from Arctic Russia and revealed two major hydrological shifts, which could be validated against plant macrofossil data. We also compared our model to another two models from more temperate peatlands. Comparison of the different testate amoeba datasets suggests that testate amoeba ecohydrological relationships are similar for permafrost peatlands to those in more temperate regions, but there are some differences that suggest a need for training datasets that are fully representative of permafrost peatlands. Article in Journal/Newspaper Arctic Climate change permafrost Lapland Wiley Online Library Arctic Journal of Quaternary Science 32 7 976 988 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT To explore the use of testate amoeba for investigating the impacts of climate change on permafrost peatland hydrology, we established a new modern training set from Arctic permafrost peatlands in north‐east European Russia and Finnish Lapland. Ordination analyses showed that water‐table depth (WTD) was the most important control on testate amoeba distribution. We developed a new testate amoeba‐based WTD transfer function and thoroughly tested it. We found that our transfer function had strong predictive power. The best‐performing model was based on tolerance‐downweighted weighted averaging with inverse deshrinking ( R 2 = 0.77, RMSEP = 5.62 cm with leave‐one‐out cross validation). The new transfer function was applied to a short peat core from Arctic Russia and revealed two major hydrological shifts, which could be validated against plant macrofossil data. We also compared our model to another two models from more temperate peatlands. Comparison of the different testate amoeba datasets suggests that testate amoeba ecohydrological relationships are similar for permafrost peatlands to those in more temperate regions, but there are some differences that suggest a need for training datasets that are fully representative of permafrost peatlands. |
author2 |
China Scholarship Council |
format |
Article in Journal/Newspaper |
author |
Zhang, Hui Amesbury, Matthew J. Ronkainen, Tiina Charman, Dan J. Gallego‐Sala, Angela V. VÄliranta, Minna |
spellingShingle |
Zhang, Hui Amesbury, Matthew J. Ronkainen, Tiina Charman, Dan J. Gallego‐Sala, Angela V. VÄliranta, Minna Testate amoeba as palaeohydrological indicators in the permafrost peatlands of north‐east European Russia and Finnish Lapland |
author_facet |
Zhang, Hui Amesbury, Matthew J. Ronkainen, Tiina Charman, Dan J. Gallego‐Sala, Angela V. VÄliranta, Minna |
author_sort |
Zhang, Hui |
title |
Testate amoeba as palaeohydrological indicators in the permafrost peatlands of north‐east European Russia and Finnish Lapland |
title_short |
Testate amoeba as palaeohydrological indicators in the permafrost peatlands of north‐east European Russia and Finnish Lapland |
title_full |
Testate amoeba as palaeohydrological indicators in the permafrost peatlands of north‐east European Russia and Finnish Lapland |
title_fullStr |
Testate amoeba as palaeohydrological indicators in the permafrost peatlands of north‐east European Russia and Finnish Lapland |
title_full_unstemmed |
Testate amoeba as palaeohydrological indicators in the permafrost peatlands of north‐east European Russia and Finnish Lapland |
title_sort |
testate amoeba as palaeohydrological indicators in the permafrost peatlands of north‐east european russia and finnish lapland |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1002/jqs.2970 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2970 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2970 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change permafrost Lapland |
genre_facet |
Arctic Climate change permafrost Lapland |
op_source |
Journal of Quaternary Science volume 32, issue 7, page 976-988 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.2970 |
container_title |
Journal of Quaternary Science |
container_volume |
32 |
container_issue |
7 |
container_start_page |
976 |
op_container_end_page |
988 |
_version_ |
1802640793317408768 |