Data from: The role of bryophytes for tree seedling responses to winter climate change: implications for the stress gradient hypothesis
1.When tree seedlings establish beyond the current tree line due to climate warming, they encounter existing vegetation, such as bryophytes that often dominate in arctic and alpine tundra. The stress gradient hypothesis (SGH) predicts that plant interactions in tundra become increasingly negative as...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:99490 2023-07-02T03:31:35+02:00 Data from: The role of bryophytes for tree seedling responses to winter climate change: implications for the stress gradient hypothesis Lett, Signe Wardle, David A. Nilsson, Marie-Charlotte Teuber, Laurenz M. Dorrepaal, Ellen 2017-11-07T23:20:30.000+01:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-26-r4z5 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:99490 unknown doi:10.5061/dryad.84397/1 doi:10.1111/1365-2745.12898 http://nbn-resolving.org/urn:nbn:nl:ui:13-26-r4z5 doi:10.5061/dryad.84397 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:99490 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2017 ftdans https://doi.org/10.5061/dryad.84397/110.1111/1365-2745.1289810.5061/dryad.84397 2023-06-13T13:25:43Z 1.When tree seedlings establish beyond the current tree line due to climate warming, they encounter existing vegetation, such as bryophytes that often dominate in arctic and alpine tundra. The stress gradient hypothesis (SGH) predicts that plant interactions in tundra become increasingly negative as climate warms and conditions become less harsh. However, for seedlings climate warming might not result in lower winter stress, if insulating snow cover is reduced. 2.We aimed to understand to if bryophytes facilitate seedling survival in a changing winter climate and if these effects of bryophytes on tree seedlings comply with the SGH along elevational gradients under contrasting snow conditions. 3.In the Swedish subarctic, we transplanted intact bryophyte cores covered by each of three bryophyte species and bryophyte-free control soil from above the tree line to two field common-garden sites, representing current and future tree line air temperature conditions (i.e. current tree line elevation and a lower, warmer, elevation below the tree line). We planted seedlings of Betula pubescens and Pinus sylvestris into these cores and subjected them to experimental manipulation of snow cover during one winter. 4.In agreement with the SGH, milder conditions caused by increased snow cover enhanced the generally negative or neutral effects of bryophytes on seedlings immediately after winter. Further, survival of P. sylvestris seedlings after one full year was higher at lower elevation, especially when snow cover was thinner. However, in contrast with the SGH, impacts of bryophytes on over-winter survival of seedlings did not differ between elevations, and impacts on survival of B. pubescens seedlings after one year was more negative at lower elevation. Bryophyte species differed in their effect on seedling survival after winter, but these differences were not related to their insulating capacity. 5.Synthesis: Our study demonstrates that interactions from bryophytes can modify the impacts of winter climate change on tree ... Other/Unknown Material Arctic Climate change Subarctic Tundra Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Arctic |
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Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
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Life sciences medicine and health care |
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Life sciences medicine and health care Lett, Signe Wardle, David A. Nilsson, Marie-Charlotte Teuber, Laurenz M. Dorrepaal, Ellen Data from: The role of bryophytes for tree seedling responses to winter climate change: implications for the stress gradient hypothesis |
topic_facet |
Life sciences medicine and health care |
description |
1.When tree seedlings establish beyond the current tree line due to climate warming, they encounter existing vegetation, such as bryophytes that often dominate in arctic and alpine tundra. The stress gradient hypothesis (SGH) predicts that plant interactions in tundra become increasingly negative as climate warms and conditions become less harsh. However, for seedlings climate warming might not result in lower winter stress, if insulating snow cover is reduced. 2.We aimed to understand to if bryophytes facilitate seedling survival in a changing winter climate and if these effects of bryophytes on tree seedlings comply with the SGH along elevational gradients under contrasting snow conditions. 3.In the Swedish subarctic, we transplanted intact bryophyte cores covered by each of three bryophyte species and bryophyte-free control soil from above the tree line to two field common-garden sites, representing current and future tree line air temperature conditions (i.e. current tree line elevation and a lower, warmer, elevation below the tree line). We planted seedlings of Betula pubescens and Pinus sylvestris into these cores and subjected them to experimental manipulation of snow cover during one winter. 4.In agreement with the SGH, milder conditions caused by increased snow cover enhanced the generally negative or neutral effects of bryophytes on seedlings immediately after winter. Further, survival of P. sylvestris seedlings after one full year was higher at lower elevation, especially when snow cover was thinner. However, in contrast with the SGH, impacts of bryophytes on over-winter survival of seedlings did not differ between elevations, and impacts on survival of B. pubescens seedlings after one year was more negative at lower elevation. Bryophyte species differed in their effect on seedling survival after winter, but these differences were not related to their insulating capacity. 5.Synthesis: Our study demonstrates that interactions from bryophytes can modify the impacts of winter climate change on tree ... |
author |
Lett, Signe Wardle, David A. Nilsson, Marie-Charlotte Teuber, Laurenz M. Dorrepaal, Ellen |
author_facet |
Lett, Signe Wardle, David A. Nilsson, Marie-Charlotte Teuber, Laurenz M. Dorrepaal, Ellen |
author_sort |
Lett, Signe |
title |
Data from: The role of bryophytes for tree seedling responses to winter climate change: implications for the stress gradient hypothesis |
title_short |
Data from: The role of bryophytes for tree seedling responses to winter climate change: implications for the stress gradient hypothesis |
title_full |
Data from: The role of bryophytes for tree seedling responses to winter climate change: implications for the stress gradient hypothesis |
title_fullStr |
Data from: The role of bryophytes for tree seedling responses to winter climate change: implications for the stress gradient hypothesis |
title_full_unstemmed |
Data from: The role of bryophytes for tree seedling responses to winter climate change: implications for the stress gradient hypothesis |
title_sort |
data from: the role of bryophytes for tree seedling responses to winter climate change: implications for the stress gradient hypothesis |
publishDate |
2017 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-26-r4z5 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:99490 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Subarctic Tundra |
genre_facet |
Arctic Climate change Subarctic Tundra |
op_relation |
doi:10.5061/dryad.84397/1 doi:10.1111/1365-2745.12898 http://nbn-resolving.org/urn:nbn:nl:ui:13-26-r4z5 doi:10.5061/dryad.84397 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:99490 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.84397/110.1111/1365-2745.1289810.5061/dryad.84397 |
_version_ |
1770270947873390592 |