Onset of autumn senescence in High Arctic plants shows similar patterns in natural and experimental snow depth gradients
Predicted changes in snow cover and temperature raise uncertainties about how the beginning and the end of the growing season will shift for Arctic plants. Snowmelt timing and temperature are known to affect the timing of bud burst, but their effects on autumn senescence are less clear. To address t...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/350095 2024-01-07T09:40:24+01:00 Onset of autumn senescence in High Arctic plants shows similar patterns in natural and experimental snow depth gradients Gehrmann, Friederike Ziegler, Camille Cooper, Elisabeth J. Plant Ecophysiology and Climate Change Group Organismal and Evolutionary Biology Research Programme 2022-10-24T14:16:02Z 23 application/pdf http://hdl.handle.net/10138/350095 eng eng Nrc research press 10.1139/as-2020-0044 Gehrmann , F , Ziegler , C & Cooper , E J 2022 , ' Onset of autumn senescence in High Arctic plants shows similar patterns in natural and experimental snow depth gradients ' , Arctic Science , vol. 8 , no. 3 , pp. 744-766 . https://doi.org/10.1139/as-2020-0044 RIS: urn:CD2DFDA7D06F43C1FECAC3BD6CF8A755 67a4914f-58bf-4ca2-8d59-c65b2f7e302c http://hdl.handle.net/10138/350095 000928440900009 cc_by openAccess info:eu-repo/semantics/openAccess 11831 Plant biology Article publishedVersion 2022 ftunivhelsihelda 2023-12-14T00:06:58Z Predicted changes in snow cover and temperature raise uncertainties about how the beginning and the end of the growing season will shift for Arctic plants. Snowmelt timing and temperature are known to affect the timing of bud burst, but their effects on autumn senescence are less clear. To address this, researchers have examined senescence under natural and experimental environmental gradients. However, these approaches address different aspects of plant responses and the extent to which they can be compared is poorly understood. In this study, we show that the effect of snowmelt timing on the timing of autumn senescence in High Arctic plants is the same between a natural and an experimental gradient in three out of four studied species. While the two approaches mostly produce comparable results, they give in combination greater insight into the phenological responses to predicted climate changes. We also showed that a short warming treatment in autumn delayed senescence by 3.5 days in Dryas octopetala L., which is a 10% extension of the growing season end for this species. Warming treatments have commonly been applied to the whole growing season, but here we show that even isolated autumn warming can be sufficient to affect plant senescence. Peer reviewed Article in Journal/Newspaper Arctic Arctic Dryas octopetala HELDA – University of Helsinki Open Repository Arctic Arctic Science 8 3 744 766 |
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Open Polar |
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HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
11831 Plant biology |
spellingShingle |
11831 Plant biology Gehrmann, Friederike Ziegler, Camille Cooper, Elisabeth J. Onset of autumn senescence in High Arctic plants shows similar patterns in natural and experimental snow depth gradients |
topic_facet |
11831 Plant biology |
description |
Predicted changes in snow cover and temperature raise uncertainties about how the beginning and the end of the growing season will shift for Arctic plants. Snowmelt timing and temperature are known to affect the timing of bud burst, but their effects on autumn senescence are less clear. To address this, researchers have examined senescence under natural and experimental environmental gradients. However, these approaches address different aspects of plant responses and the extent to which they can be compared is poorly understood. In this study, we show that the effect of snowmelt timing on the timing of autumn senescence in High Arctic plants is the same between a natural and an experimental gradient in three out of four studied species. While the two approaches mostly produce comparable results, they give in combination greater insight into the phenological responses to predicted climate changes. We also showed that a short warming treatment in autumn delayed senescence by 3.5 days in Dryas octopetala L., which is a 10% extension of the growing season end for this species. Warming treatments have commonly been applied to the whole growing season, but here we show that even isolated autumn warming can be sufficient to affect plant senescence. Peer reviewed |
author2 |
Plant Ecophysiology and Climate Change Group Organismal and Evolutionary Biology Research Programme |
format |
Article in Journal/Newspaper |
author |
Gehrmann, Friederike Ziegler, Camille Cooper, Elisabeth J. |
author_facet |
Gehrmann, Friederike Ziegler, Camille Cooper, Elisabeth J. |
author_sort |
Gehrmann, Friederike |
title |
Onset of autumn senescence in High Arctic plants shows similar patterns in natural and experimental snow depth gradients |
title_short |
Onset of autumn senescence in High Arctic plants shows similar patterns in natural and experimental snow depth gradients |
title_full |
Onset of autumn senescence in High Arctic plants shows similar patterns in natural and experimental snow depth gradients |
title_fullStr |
Onset of autumn senescence in High Arctic plants shows similar patterns in natural and experimental snow depth gradients |
title_full_unstemmed |
Onset of autumn senescence in High Arctic plants shows similar patterns in natural and experimental snow depth gradients |
title_sort |
onset of autumn senescence in high arctic plants shows similar patterns in natural and experimental snow depth gradients |
publisher |
Nrc research press |
publishDate |
2022 |
url |
http://hdl.handle.net/10138/350095 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Dryas octopetala |
genre_facet |
Arctic Arctic Dryas octopetala |
op_relation |
10.1139/as-2020-0044 Gehrmann , F , Ziegler , C & Cooper , E J 2022 , ' Onset of autumn senescence in High Arctic plants shows similar patterns in natural and experimental snow depth gradients ' , Arctic Science , vol. 8 , no. 3 , pp. 744-766 . https://doi.org/10.1139/as-2020-0044 RIS: urn:CD2DFDA7D06F43C1FECAC3BD6CF8A755 67a4914f-58bf-4ca2-8d59-c65b2f7e302c http://hdl.handle.net/10138/350095 000928440900009 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Arctic Science |
container_volume |
8 |
container_issue |
3 |
container_start_page |
744 |
op_container_end_page |
766 |
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1787421324432375808 |