Radial growth of subarctic tree and shrub species: relationships with climate and association with the greening of the forest-tundra ecotone of subarctic Québec, Canada
Climate change has resulted in a widespread increase in primary productivity in northern regions. This “greening” can alter terrestrial ecosystems dynamics and trigger positive climate feedbacks, but often exhibits spatial heterogeneity. Few studies have focused on the differential responses of plan...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
2023
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Online Access: | http://dx.doi.org/10.1139/as-2023-0030 https://cdnsciencepub.com/doi/pdf/10.1139/AS-2023-0030 |
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crcansciencepubl:10.1139/as-2023-0030 2023-12-17T10:22:41+01:00 Radial growth of subarctic tree and shrub species: relationships with climate and association with the greening of the forest-tundra ecotone of subarctic Québec, Canada Labrecque-Foy, Julie-Pascale Gaspard, Anna Simard, Martin Boudreau, Stephane 2023 http://dx.doi.org/10.1139/as-2023-0030 https://cdnsciencepub.com/doi/pdf/10.1139/AS-2023-0030 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Arctic Science ISSN 2368-7460 General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science journal-article 2023 crcansciencepubl https://doi.org/10.1139/as-2023-0030 2023-11-19T13:39:31Z Climate change has resulted in a widespread increase in primary productivity in northern regions. This “greening” can alter terrestrial ecosystems dynamics and trigger positive climate feedbacks, but often exhibits spatial heterogeneity. Few studies have focused on the differential responses of plant functional groups to warming as a potential driver of heterogeneity in greening rates. Our objective was to determine if climate-growth relationships are species-specific, and if they can explain the heterogeneity of the subarctic greening rates. We compared climate-growth relationships and associations to NDVI of the dominant tree (Picea mariana) and shrub (Betula glandulosa) species at two locations in the forest-tundra ecotone in Nunavik (Québec, Canada). Correlation coefficients of the climate-growth relationship varied between species and locations, being higher for P. mariana and at the northernmost location. The lower association between NDVI and P. mariana radial growth at the northernmost location appeared to be compensated by a stronger association between NDVI and B. glandulosa radial growth. Our results show that response to climate varies spatially and between species, both of which could potentially be used to explain the heterogeneity of subarctic greening rates. This improved understanding of the species-specific response to climate change will help predict forthcoming changes in primary productivity and their potential positive feedback on climate change. Article in Journal/Newspaper Arctic Subarctic Tundra Nunavik Canadian Science Publishing (via Crossref) Canada Nunavik Arctic Science |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
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General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science Labrecque-Foy, Julie-Pascale Gaspard, Anna Simard, Martin Boudreau, Stephane Radial growth of subarctic tree and shrub species: relationships with climate and association with the greening of the forest-tundra ecotone of subarctic Québec, Canada |
topic_facet |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
description |
Climate change has resulted in a widespread increase in primary productivity in northern regions. This “greening” can alter terrestrial ecosystems dynamics and trigger positive climate feedbacks, but often exhibits spatial heterogeneity. Few studies have focused on the differential responses of plant functional groups to warming as a potential driver of heterogeneity in greening rates. Our objective was to determine if climate-growth relationships are species-specific, and if they can explain the heterogeneity of the subarctic greening rates. We compared climate-growth relationships and associations to NDVI of the dominant tree (Picea mariana) and shrub (Betula glandulosa) species at two locations in the forest-tundra ecotone in Nunavik (Québec, Canada). Correlation coefficients of the climate-growth relationship varied between species and locations, being higher for P. mariana and at the northernmost location. The lower association between NDVI and P. mariana radial growth at the northernmost location appeared to be compensated by a stronger association between NDVI and B. glandulosa radial growth. Our results show that response to climate varies spatially and between species, both of which could potentially be used to explain the heterogeneity of subarctic greening rates. This improved understanding of the species-specific response to climate change will help predict forthcoming changes in primary productivity and their potential positive feedback on climate change. |
format |
Article in Journal/Newspaper |
author |
Labrecque-Foy, Julie-Pascale Gaspard, Anna Simard, Martin Boudreau, Stephane |
author_facet |
Labrecque-Foy, Julie-Pascale Gaspard, Anna Simard, Martin Boudreau, Stephane |
author_sort |
Labrecque-Foy, Julie-Pascale |
title |
Radial growth of subarctic tree and shrub species: relationships with climate and association with the greening of the forest-tundra ecotone of subarctic Québec, Canada |
title_short |
Radial growth of subarctic tree and shrub species: relationships with climate and association with the greening of the forest-tundra ecotone of subarctic Québec, Canada |
title_full |
Radial growth of subarctic tree and shrub species: relationships with climate and association with the greening of the forest-tundra ecotone of subarctic Québec, Canada |
title_fullStr |
Radial growth of subarctic tree and shrub species: relationships with climate and association with the greening of the forest-tundra ecotone of subarctic Québec, Canada |
title_full_unstemmed |
Radial growth of subarctic tree and shrub species: relationships with climate and association with the greening of the forest-tundra ecotone of subarctic Québec, Canada |
title_sort |
radial growth of subarctic tree and shrub species: relationships with climate and association with the greening of the forest-tundra ecotone of subarctic québec, canada |
publisher |
Canadian Science Publishing |
publishDate |
2023 |
url |
http://dx.doi.org/10.1139/as-2023-0030 https://cdnsciencepub.com/doi/pdf/10.1139/AS-2023-0030 |
geographic |
Canada Nunavik |
geographic_facet |
Canada Nunavik |
genre |
Arctic Subarctic Tundra Nunavik |
genre_facet |
Arctic Subarctic Tundra Nunavik |
op_source |
Arctic Science ISSN 2368-7460 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/as-2023-0030 |
container_title |
Arctic Science |
_version_ |
1785551320373002240 |