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...
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ftslunivuppsala:oai:pub.epsilon.slu.se:29807 2023-05-15T14:14:39+02:00 Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure Baillargeon, Natalie Pold, Grace Natali, Susan M. Sistla, Seeta A. 2022 application/pdf https://pub.epsilon.slu.se/29807/ https://pub.epsilon.slu.se/29807/1/baillargeon-n-et-al-20221123.pdf en eng eng https://pub.epsilon.slu.se/29807/1/baillargeon-n-et-al-20221123.pdf Baillargeon, Natalie and Pold, Grace and Natali, Susan M. and Sistla, Seeta A. (2022). Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure. Arctic, Antarctic, and Alpine Research. 54 :1 , 525-536 [Research article] Physical Geography Climate Research Research article NonPeerReviewed 2022 ftslunivuppsala 2022-12-01T17:13:50Z 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 Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive Arctic Yukon |
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Open Polar |
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Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
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ftslunivuppsala |
language |
English |
topic |
Physical Geography Climate Research |
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Physical Geography Climate Research Baillargeon, Natalie Pold, Grace Natali, Susan M. Sistla, Seeta A. Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure |
topic_facet |
Physical Geography Climate Research |
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 |
Baillargeon, Natalie Pold, Grace Natali, Susan M. Sistla, Seeta A. |
author_facet |
Baillargeon, Natalie Pold, Grace Natali, Susan M. Sistla, Seeta A. |
author_sort |
Baillargeon, Natalie |
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 |
publishDate |
2022 |
url |
https://pub.epsilon.slu.se/29807/ https://pub.epsilon.slu.se/29807/1/baillargeon-n-et-al-20221123.pdf |
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_relation |
https://pub.epsilon.slu.se/29807/1/baillargeon-n-et-al-20221123.pdf Baillargeon, Natalie and Pold, Grace and Natali, Susan M. and Sistla, Seeta A. (2022). Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure. Arctic, Antarctic, and Alpine Research. 54 :1 , 525-536 [Research article] |
_version_ |
1766286999132569600 |