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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crcansciencepubl:10.1139/as-2020-0044 2023-12-17T10:22:55+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. 2022 http://dx.doi.org/10.1139/as-2020-0044 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2020-0044 https://cdnsciencepub.com/doi/pdf/10.1139/as-2020-0044 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Arctic Science volume 8, issue 3, page 744-766 ISSN 2368-7460 2368-7460 General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science journal-article 2022 crcansciencepubl https://doi.org/10.1139/as-2020-0044 2023-11-19T13:39:40Z 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. Article in Journal/Newspaper Arctic Arctic Dryas octopetala Canadian Science Publishing (via Crossref) Arctic Arctic Science |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
spellingShingle |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science 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 |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
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. |
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 |
Canadian Science Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1139/as-2020-0044 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2020-0044 https://cdnsciencepub.com/doi/pdf/10.1139/as-2020-0044 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Dryas octopetala |
genre_facet |
Arctic Arctic Dryas octopetala |
op_source |
Arctic Science volume 8, issue 3, page 744-766 ISSN 2368-7460 2368-7460 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/as-2020-0044 |
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Arctic Science |
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1785554506051747840 |