Plant trait response of tundra shrubs to permafrost thaw and nutrient addition
Plant traits reflect growth strategies and trade-offs in response to environmental conditions. Because of climate warming, plant traits might change, altering ecosystem functions and vegetation-climate interactions. Despite important feedbacks of plant trait changes in tundra ecosystems with regiona...
Published in: | Biogeosciences |
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2020
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Online Access: | https://research.vu.nl/en/publications/071c8a49-fdac-4f40-8a69-635fbecfdb20 https://doi.org/10.5194/bg-17-4981-2020 https://hdl.handle.net/1871.1/071c8a49-fdac-4f40-8a69-635fbecfdb20 http://www.scopus.com/inward/record.url?scp=85093931427&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85093931427&partnerID=8YFLogxK |
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ftvuamstcris:oai:research.vu.nl:publications/071c8a49-fdac-4f40-8a69-635fbecfdb20 2024-10-13T14:05:42+00:00 Plant trait response of tundra shrubs to permafrost thaw and nutrient addition Iturrate-Garcia, Maitane Heijmans, Monique M.P.D. Cornelissen, L. Hans C. Schweingruber, Fritz H. Niklaus, Pascal A. Schaepman-Strub, Gabriela 2020-10-18 https://research.vu.nl/en/publications/071c8a49-fdac-4f40-8a69-635fbecfdb20 https://doi.org/10.5194/bg-17-4981-2020 https://hdl.handle.net/1871.1/071c8a49-fdac-4f40-8a69-635fbecfdb20 http://www.scopus.com/inward/record.url?scp=85093931427&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85093931427&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Iturrate-Garcia , M , Heijmans , M M P D , Cornelissen , L H C , Schweingruber , F H , Niklaus , P A & Schaepman-Strub , G 2020 , ' Plant trait response of tundra shrubs to permafrost thaw and nutrient addition ' , Biogeosciences , vol. 17 , no. 20 , pp. 4981-4998 . https://doi.org/10.5194/bg-17-4981-2020 /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action article 2020 ftvuamstcris https://doi.org/10.5194/bg-17-4981-2020 2024-10-03T00:23:17Z Plant traits reflect growth strategies and trade-offs in response to environmental conditions. Because of climate warming, plant traits might change, altering ecosystem functions and vegetation-climate interactions. Despite important feedbacks of plant trait changes in tundra ecosystems with regional climate, with a key role for shrubs, information on responses of shrub functional traits is limited. Here, we investigate the effects of experimentally increased permafrost thaw depth and (possibly thawassociated) soil nutrient availability on plant functional traits and strategies of Arctic shrubs in northeastern Siberia. We hypothesize that shrubs will generally shift their strategy from efficient conservation to faster acquisition of resources through adaptation of leaf and stem traits in a coordinated whole-plant fashion. To test this hypothesis, we ran a 4 year permafrost thaw and nutrient fertilization experiment with a fully factorial block design and six treatment combinations - permafrost thaw (control, unheated cable, heated cable) fertilization (no nutrient addition, nutrient addition). We measured 10 leaf and stem traits related to growth, defence and the resource economics spectrum in four shrub species (Betula nana, Salix pulchra, Ledum palustre and Vaccinium vitis-idaea), which were sampled in the experimental plots. The plant trait data were statistically analysed using linear mixed-effect models and principal component analysis (PCA). The response to increased permafrost thaw was not significant for most shrub traits. However, all shrubs responded to the fertilization treatment, despite decreased thaw depth and soil temperature in fertilized plots. Shrubs tended to grow taller but did not increase their stem density or bark thickness. We found a similar coordinated trait response for all four species at leaf and plant level; i.e. they shifted from a conservative towards a more acquisitive resource economy strategy upon fertilization. In accordance, results point towards a lower investment into ... Article in Journal/Newspaper Arctic Betula nana permafrost Tundra Siberia Vrije Universiteit Amsterdam (VU): Research Portal Arctic Biogeosciences 17 20 4981 4998 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action Iturrate-Garcia, Maitane Heijmans, Monique M.P.D. Cornelissen, L. Hans C. Schweingruber, Fritz H. Niklaus, Pascal A. Schaepman-Strub, Gabriela Plant trait response of tundra shrubs to permafrost thaw and nutrient addition |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
description |
Plant traits reflect growth strategies and trade-offs in response to environmental conditions. Because of climate warming, plant traits might change, altering ecosystem functions and vegetation-climate interactions. Despite important feedbacks of plant trait changes in tundra ecosystems with regional climate, with a key role for shrubs, information on responses of shrub functional traits is limited. Here, we investigate the effects of experimentally increased permafrost thaw depth and (possibly thawassociated) soil nutrient availability on plant functional traits and strategies of Arctic shrubs in northeastern Siberia. We hypothesize that shrubs will generally shift their strategy from efficient conservation to faster acquisition of resources through adaptation of leaf and stem traits in a coordinated whole-plant fashion. To test this hypothesis, we ran a 4 year permafrost thaw and nutrient fertilization experiment with a fully factorial block design and six treatment combinations - permafrost thaw (control, unheated cable, heated cable) fertilization (no nutrient addition, nutrient addition). We measured 10 leaf and stem traits related to growth, defence and the resource economics spectrum in four shrub species (Betula nana, Salix pulchra, Ledum palustre and Vaccinium vitis-idaea), which were sampled in the experimental plots. The plant trait data were statistically analysed using linear mixed-effect models and principal component analysis (PCA). The response to increased permafrost thaw was not significant for most shrub traits. However, all shrubs responded to the fertilization treatment, despite decreased thaw depth and soil temperature in fertilized plots. Shrubs tended to grow taller but did not increase their stem density or bark thickness. We found a similar coordinated trait response for all four species at leaf and plant level; i.e. they shifted from a conservative towards a more acquisitive resource economy strategy upon fertilization. In accordance, results point towards a lower investment into ... |
format |
Article in Journal/Newspaper |
author |
Iturrate-Garcia, Maitane Heijmans, Monique M.P.D. Cornelissen, L. Hans C. Schweingruber, Fritz H. Niklaus, Pascal A. Schaepman-Strub, Gabriela |
author_facet |
Iturrate-Garcia, Maitane Heijmans, Monique M.P.D. Cornelissen, L. Hans C. Schweingruber, Fritz H. Niklaus, Pascal A. Schaepman-Strub, Gabriela |
author_sort |
Iturrate-Garcia, Maitane |
title |
Plant trait response of tundra shrubs to permafrost thaw and nutrient addition |
title_short |
Plant trait response of tundra shrubs to permafrost thaw and nutrient addition |
title_full |
Plant trait response of tundra shrubs to permafrost thaw and nutrient addition |
title_fullStr |
Plant trait response of tundra shrubs to permafrost thaw and nutrient addition |
title_full_unstemmed |
Plant trait response of tundra shrubs to permafrost thaw and nutrient addition |
title_sort |
plant trait response of tundra shrubs to permafrost thaw and nutrient addition |
publishDate |
2020 |
url |
https://research.vu.nl/en/publications/071c8a49-fdac-4f40-8a69-635fbecfdb20 https://doi.org/10.5194/bg-17-4981-2020 https://hdl.handle.net/1871.1/071c8a49-fdac-4f40-8a69-635fbecfdb20 http://www.scopus.com/inward/record.url?scp=85093931427&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85093931427&partnerID=8YFLogxK |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Betula nana permafrost Tundra Siberia |
genre_facet |
Arctic Betula nana permafrost Tundra Siberia |
op_source |
Iturrate-Garcia , M , Heijmans , M M P D , Cornelissen , L H C , Schweingruber , F H , Niklaus , P A & Schaepman-Strub , G 2020 , ' Plant trait response of tundra shrubs to permafrost thaw and nutrient addition ' , Biogeosciences , vol. 17 , no. 20 , pp. 4981-4998 . https://doi.org/10.5194/bg-17-4981-2020 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-17-4981-2020 |
container_title |
Biogeosciences |
container_volume |
17 |
container_issue |
20 |
container_start_page |
4981 |
op_container_end_page |
4998 |
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1812811761737269248 |