Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure
The Arctic is experiencing the greatest increase in average surface temperature globally, which is projected to amplify wildfire frequency and severity. Wildfire alters the biogeochemical characteristics of arctic ecosystems. However, the extent of these changes over time—particularly with regard to...
Published in: | Arctic, Antarctic, and Alpine Research |
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Language: | English |
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Taylor & Francis Group
2022
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Online Access: | https://doi.org/10.1080/15230430.2022.2121246 https://doaj.org/article/29de284d56534a4094bf5e983633c654 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:29de284d56534a4094bf5e983633c654 2023-05-15T14:14:22+02:00 Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure Natalie Baillargeon Grace Pold Susan M. Natali Seeta A. Sistla 2022-12-01 https://doi.org/10.1080/15230430.2022.2121246 https://doaj.org/article/29de284d56534a4094bf5e983633c654 en eng Taylor & Francis Group doi:10.1080/15230430.2022.2121246 1938-4246 1523-0430 https://doaj.org/article/29de284d56534a4094bf5e983633c654 undefined Arctic, Antarctic, and Alpine Research, Vol 54, Iss 1, Pp 525-536 (2022) Arctic tundra fire vegetation stoichiometry envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2022 fttriple https://doi.org/10.1080/15230430.2022.2121246 2023-01-22T19:11:31Z The Arctic is experiencing the greatest increase in average surface temperature globally, which is projected to amplify wildfire frequency and severity. Wildfire alters the biogeochemical characteristics of arctic ecosystems. However, the extent of these changes over time—particularly with regard to plant stoichiometries relative to community structure—is not well documented. Four years after the Yukon-Kuskokwim Delta, Alaska, experienced its largest fire season, aboveground plant and lichen biomass was harvested across a gradient of burn history: unburned (“reference”), 2015 burn (“recent burn”), and 1972 burn (“historic burn”) to assess the resilience of tundra plant communities to fire disturbance. Fire reduced aboveground biomass in the recent burn; early recovery was characterized by evergreen shrub and graminoid dominance. In the historic burn, aboveground biomass approached reference conditions despite a sustained reduction of lichen biomass. Although total plant and lichen carbon (C) and nitrogen (N) were reduced immediately following fire, N stocks recovered to a greater degree—reducing community-level C:N. Notably, at the species level, N enrichment was observed only in the recent burn. Yet, community restructuring persisted for decades following fire, reflecting a sustained reduction in N-poor lichens relative to more N-rich vascular plant species. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Arctic Kuskokwim Tundra Alaska Yukon Unknown Arctic Yukon Arctic, Antarctic, and Alpine Research 54 1 525 536 |
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Open Polar |
collection |
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op_collection_id |
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language |
English |
topic |
Arctic tundra fire vegetation stoichiometry envir geo |
spellingShingle |
Arctic tundra fire vegetation stoichiometry envir geo Natalie Baillargeon Grace Pold Susan M. Natali Seeta A. Sistla Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure |
topic_facet |
Arctic tundra fire vegetation stoichiometry envir geo |
description |
The Arctic is experiencing the greatest increase in average surface temperature globally, which is projected to amplify wildfire frequency and severity. Wildfire alters the biogeochemical characteristics of arctic ecosystems. However, the extent of these changes over time—particularly with regard to plant stoichiometries relative to community structure—is not well documented. Four years after the Yukon-Kuskokwim Delta, Alaska, experienced its largest fire season, aboveground plant and lichen biomass was harvested across a gradient of burn history: unburned (“reference”), 2015 burn (“recent burn”), and 1972 burn (“historic burn”) to assess the resilience of tundra plant communities to fire disturbance. Fire reduced aboveground biomass in the recent burn; early recovery was characterized by evergreen shrub and graminoid dominance. In the historic burn, aboveground biomass approached reference conditions despite a sustained reduction of lichen biomass. Although total plant and lichen carbon (C) and nitrogen (N) were reduced immediately following fire, N stocks recovered to a greater degree—reducing community-level C:N. Notably, at the species level, N enrichment was observed only in the recent burn. Yet, community restructuring persisted for decades following fire, reflecting a sustained reduction in N-poor lichens relative to more N-rich vascular plant species. |
format |
Article in Journal/Newspaper |
author |
Natalie Baillargeon Grace Pold Susan M. Natali Seeta A. Sistla |
author_facet |
Natalie Baillargeon Grace Pold Susan M. Natali Seeta A. Sistla |
author_sort |
Natalie Baillargeon |
title |
Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure |
title_short |
Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure |
title_full |
Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure |
title_fullStr |
Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure |
title_full_unstemmed |
Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure |
title_sort |
lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure |
publisher |
Taylor & Francis Group |
publishDate |
2022 |
url |
https://doi.org/10.1080/15230430.2022.2121246 https://doaj.org/article/29de284d56534a4094bf5e983633c654 |
geographic |
Arctic Yukon |
geographic_facet |
Arctic Yukon |
genre |
Antarctic and Alpine Research Arctic Arctic Kuskokwim Tundra Alaska Yukon |
genre_facet |
Antarctic and Alpine Research Arctic Arctic Kuskokwim Tundra Alaska Yukon |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 54, Iss 1, Pp 525-536 (2022) |
op_relation |
doi:10.1080/15230430.2022.2121246 1938-4246 1523-0430 https://doaj.org/article/29de284d56534a4094bf5e983633c654 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1080/15230430.2022.2121246 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
54 |
container_issue |
1 |
container_start_page |
525 |
op_container_end_page |
536 |
_version_ |
1766286872301010944 |