Frost damage measured by electrolyte leakage in subarctic bryophytes increases with climate warming
Observed climate change in northern high latitudes is strongest in winter, but still relatively little is known about the effects of winter climate change on tundra ecosystems. Ongoing changes in winter climate and snow cover will change the intensity, duration and frequency of frost events. Bryophy...
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ftumeauniv:oai:DiVA.org:umu-218137 2024-05-19T07:27:19+00:00 Frost damage measured by electrolyte leakage in subarctic bryophytes increases with climate warming van Zuijlen, Kristel Kassel, Marlene Dorrepaal, Ellen Lett, Signe 2024 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-218137 https://doi.org/10.1111/1365-2745.14236 eng eng UmeÃ¥ universitet UmeÃ¥ universitet, Institutionen för ekologi, miljö och geovetenskap Swedish Museum of Natural History, Stockholm, Sweden; Swiss Federal Research Institute WSL, Birmensdorf, Switzerland State Institute for Environment Baden-Württemberg, Karlsruhe, Germany Department of Biology, Terrestrial Ecology Section, University of Copenhagen, Copenhagen, Denmark Journal of Ecology, 0022-0477, 2024, 112:2, s. 220-232 orcid:0000-0002-0523-2471 http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-218137 doi:10.1111/1365-2745.14236 ISI:001113739200001 Scopus 2-s2.0-85178954236 info:eu-repo/semantics/openAccess desiccation tolerance frost sensitivity mosses relative electrolyte leakage (REL) snow manipulation experiment tundra winter ecology Ecology Ekologi Article in journal info:eu-repo/semantics/article text 2024 ftumeauniv https://doi.org/10.1111/1365-2745.14236 2024-04-30T23:35:21Z Observed climate change in northern high latitudes is strongest in winter, but still relatively little is known about the effects of winter climate change on tundra ecosystems. Ongoing changes in winter climate and snow cover will change the intensity, duration and frequency of frost events. Bryophytes form a major component of northern ecosystems but their responses to winter climate changes are largely unknown. Here, we studied how changes in overall winter climate and snow regime affect frost damage in three common bryophyte taxa that differ in desiccation tolerance in a subarctic tundra ecosystem. We used a snow manipulation experiment where bryophyte cores were transplanted from just above the tree line to similar elevation (i.e. current cold climate) and lower elevation (i.e. near-future warmer climate scenario) in Abisko, Sweden. Here, we measured frost damage in shoots of Ptilidium ciliare, Hylocomium splendens and Sphagnum fuscum with the relative electrolyte leakage (REL) method, during late winter and spring in two consecutive years. We hypothesized that frost damage would be lower in a milder climate (low site) and higher under reduced snow cover and that taxa from moister habitats with assumed low desiccation tolerance would be more sensitive to lower temperature and thinner snow cover than those from drier and more exposed habitats. Contrary to our expectations, frost damage was highest at low elevation, while the effect of snow treatment differed across sites and taxa. At the high site, frost damage was reduced under snow addition in the taxon with the assumed lowest desiccation tolerance, S. fuscum. Surprisingly, frost damage increased with mean temperature in the bryophyte core of the preceding 14 days leading up to REL measurements and decreased with higher frost degree sums, that is, was highest in the milder climate at the low site. Synthesis Our results imply that climate warming in late winter and spring increases frost damage in bryophytes. Given the high abundance of bryophytes in tundra ... Article in Journal/Newspaper Abisko Subarctic Tundra Umeå University: Publications (DiVA) Journal of Ecology |
institution |
Open Polar |
collection |
Umeå University: Publications (DiVA) |
op_collection_id |
ftumeauniv |
language |
English |
topic |
desiccation tolerance frost sensitivity mosses relative electrolyte leakage (REL) snow manipulation experiment tundra winter ecology Ecology Ekologi |
spellingShingle |
desiccation tolerance frost sensitivity mosses relative electrolyte leakage (REL) snow manipulation experiment tundra winter ecology Ecology Ekologi van Zuijlen, Kristel Kassel, Marlene Dorrepaal, Ellen Lett, Signe Frost damage measured by electrolyte leakage in subarctic bryophytes increases with climate warming |
topic_facet |
desiccation tolerance frost sensitivity mosses relative electrolyte leakage (REL) snow manipulation experiment tundra winter ecology Ecology Ekologi |
description |
Observed climate change in northern high latitudes is strongest in winter, but still relatively little is known about the effects of winter climate change on tundra ecosystems. Ongoing changes in winter climate and snow cover will change the intensity, duration and frequency of frost events. Bryophytes form a major component of northern ecosystems but their responses to winter climate changes are largely unknown. Here, we studied how changes in overall winter climate and snow regime affect frost damage in three common bryophyte taxa that differ in desiccation tolerance in a subarctic tundra ecosystem. We used a snow manipulation experiment where bryophyte cores were transplanted from just above the tree line to similar elevation (i.e. current cold climate) and lower elevation (i.e. near-future warmer climate scenario) in Abisko, Sweden. Here, we measured frost damage in shoots of Ptilidium ciliare, Hylocomium splendens and Sphagnum fuscum with the relative electrolyte leakage (REL) method, during late winter and spring in two consecutive years. We hypothesized that frost damage would be lower in a milder climate (low site) and higher under reduced snow cover and that taxa from moister habitats with assumed low desiccation tolerance would be more sensitive to lower temperature and thinner snow cover than those from drier and more exposed habitats. Contrary to our expectations, frost damage was highest at low elevation, while the effect of snow treatment differed across sites and taxa. At the high site, frost damage was reduced under snow addition in the taxon with the assumed lowest desiccation tolerance, S. fuscum. Surprisingly, frost damage increased with mean temperature in the bryophyte core of the preceding 14 days leading up to REL measurements and decreased with higher frost degree sums, that is, was highest in the milder climate at the low site. Synthesis Our results imply that climate warming in late winter and spring increases frost damage in bryophytes. Given the high abundance of bryophytes in tundra ... |
format |
Article in Journal/Newspaper |
author |
van Zuijlen, Kristel Kassel, Marlene Dorrepaal, Ellen Lett, Signe |
author_facet |
van Zuijlen, Kristel Kassel, Marlene Dorrepaal, Ellen Lett, Signe |
author_sort |
van Zuijlen, Kristel |
title |
Frost damage measured by electrolyte leakage in subarctic bryophytes increases with climate warming |
title_short |
Frost damage measured by electrolyte leakage in subarctic bryophytes increases with climate warming |
title_full |
Frost damage measured by electrolyte leakage in subarctic bryophytes increases with climate warming |
title_fullStr |
Frost damage measured by electrolyte leakage in subarctic bryophytes increases with climate warming |
title_full_unstemmed |
Frost damage measured by electrolyte leakage in subarctic bryophytes increases with climate warming |
title_sort |
frost damage measured by electrolyte leakage in subarctic bryophytes increases with climate warming |
publisher |
Umeå universitet |
publishDate |
2024 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-218137 https://doi.org/10.1111/1365-2745.14236 |
genre |
Abisko Subarctic Tundra |
genre_facet |
Abisko Subarctic Tundra |
op_relation |
Journal of Ecology, 0022-0477, 2024, 112:2, s. 220-232 orcid:0000-0002-0523-2471 http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-218137 doi:10.1111/1365-2745.14236 ISI:001113739200001 Scopus 2-s2.0-85178954236 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/1365-2745.14236 |
container_title |
Journal of Ecology |
_version_ |
1799467250712838144 |