Warmer temperatures promote shrub radial growth but not cover in the central Canadian Arctic
We assessed the response of Salix richardsonii, a deciduous shrub, to climate change by determining the combination of climatic factors that regulated its growth over the past half-century. We tested whether increasing arctic temperatures promote shrub growth and increased cover. We analyzed fifty-f...
Published in: | Arctic, Antarctic, and Alpine Research |
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ftdoajarticles:oai:doaj.org/article:ccc883d94eb548a5a834d699d0a0c61a 2023-05-15T14:14:31+02:00 Warmer temperatures promote shrub radial growth but not cover in the central Canadian Arctic Robert W. Buchkowski Douglas W. Morris William D. Halliday Angélique Dupuch Clara Morrissette-Boileau Stéphane Boudreau 2020-01-01T00:00:00Z https://doi.org/10.1080/15230430.2020.1824558 https://doaj.org/article/ccc883d94eb548a5a834d699d0a0c61a EN eng Taylor & Francis Group http://dx.doi.org/10.1080/15230430.2020.1824558 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2020.1824558 https://doaj.org/article/ccc883d94eb548a5a834d699d0a0c61a Arctic, Antarctic, and Alpine Research, Vol 52, Iss 1, Pp 582-595 (2020) climate change dendrochronology response function salix richardsonii walker bay Environmental sciences GE1-350 Ecology QH540-549.5 article 2020 ftdoajarticles https://doi.org/10.1080/15230430.2020.1824558 2022-12-31T15:28:21Z We assessed the response of Salix richardsonii, a deciduous shrub, to climate change by determining the combination of climatic factors that regulated its growth over the past half-century. We tested whether increasing arctic temperatures promote shrub growth and increased cover. We analyzed fifty-four stems (out of seventy sampled) from S. richardsonii shrubs near the Walker Bay research station in Nunavut, Canada (68°21′ N, 108°05′ W) and surveyed shrub cover in 1996 and 2010. We measured annual growth rings, removed the age-related pattern, and used a response function analysis to explore the climate–growth relationship. The standardized chronology was positively associated with mean July temperature, corroborating other evidence that summer temperature is an important driver of shrub radial growth. Basal area increment revealed a long-term increase in radial growth, although it has stabilized this century. Surveys showed no significant increase in shrub cover at Walker Bay from 1996 to 2010. Our results support a growing body of evidence that increased shrub growth does not necessarily translate into a prolonged increase in shrub cover. Instead, we conclude that the heterogeneity of the arctic shrub response to climate change may be associated with variation in the proximate factors limiting recruitment such as water table saturation and herbivory. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Arctic Climate change Nunavut Walker Bay Directory of Open Access Journals: DOAJ Articles Arctic Canada Nunavut Walker Bay ENVELOPE(-60.700,-60.700,-62.633,-62.633) Arctic, Antarctic, and Alpine Research 52 1 582 595 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
climate change dendrochronology response function salix richardsonii walker bay Environmental sciences GE1-350 Ecology QH540-549.5 |
spellingShingle |
climate change dendrochronology response function salix richardsonii walker bay Environmental sciences GE1-350 Ecology QH540-549.5 Robert W. Buchkowski Douglas W. Morris William D. Halliday Angélique Dupuch Clara Morrissette-Boileau Stéphane Boudreau Warmer temperatures promote shrub radial growth but not cover in the central Canadian Arctic |
topic_facet |
climate change dendrochronology response function salix richardsonii walker bay Environmental sciences GE1-350 Ecology QH540-549.5 |
description |
We assessed the response of Salix richardsonii, a deciduous shrub, to climate change by determining the combination of climatic factors that regulated its growth over the past half-century. We tested whether increasing arctic temperatures promote shrub growth and increased cover. We analyzed fifty-four stems (out of seventy sampled) from S. richardsonii shrubs near the Walker Bay research station in Nunavut, Canada (68°21′ N, 108°05′ W) and surveyed shrub cover in 1996 and 2010. We measured annual growth rings, removed the age-related pattern, and used a response function analysis to explore the climate–growth relationship. The standardized chronology was positively associated with mean July temperature, corroborating other evidence that summer temperature is an important driver of shrub radial growth. Basal area increment revealed a long-term increase in radial growth, although it has stabilized this century. Surveys showed no significant increase in shrub cover at Walker Bay from 1996 to 2010. Our results support a growing body of evidence that increased shrub growth does not necessarily translate into a prolonged increase in shrub cover. Instead, we conclude that the heterogeneity of the arctic shrub response to climate change may be associated with variation in the proximate factors limiting recruitment such as water table saturation and herbivory. |
format |
Article in Journal/Newspaper |
author |
Robert W. Buchkowski Douglas W. Morris William D. Halliday Angélique Dupuch Clara Morrissette-Boileau Stéphane Boudreau |
author_facet |
Robert W. Buchkowski Douglas W. Morris William D. Halliday Angélique Dupuch Clara Morrissette-Boileau Stéphane Boudreau |
author_sort |
Robert W. Buchkowski |
title |
Warmer temperatures promote shrub radial growth but not cover in the central Canadian Arctic |
title_short |
Warmer temperatures promote shrub radial growth but not cover in the central Canadian Arctic |
title_full |
Warmer temperatures promote shrub radial growth but not cover in the central Canadian Arctic |
title_fullStr |
Warmer temperatures promote shrub radial growth but not cover in the central Canadian Arctic |
title_full_unstemmed |
Warmer temperatures promote shrub radial growth but not cover in the central Canadian Arctic |
title_sort |
warmer temperatures promote shrub radial growth but not cover in the central canadian arctic |
publisher |
Taylor & Francis Group |
publishDate |
2020 |
url |
https://doi.org/10.1080/15230430.2020.1824558 https://doaj.org/article/ccc883d94eb548a5a834d699d0a0c61a |
long_lat |
ENVELOPE(-60.700,-60.700,-62.633,-62.633) |
geographic |
Arctic Canada Nunavut Walker Bay |
geographic_facet |
Arctic Canada Nunavut Walker Bay |
genre |
Antarctic and Alpine Research Arctic Arctic Climate change Nunavut Walker Bay |
genre_facet |
Antarctic and Alpine Research Arctic Arctic Climate change Nunavut Walker Bay |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 52, Iss 1, Pp 582-595 (2020) |
op_relation |
http://dx.doi.org/10.1080/15230430.2020.1824558 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2020.1824558 https://doaj.org/article/ccc883d94eb548a5a834d699d0a0c61a |
op_doi |
https://doi.org/10.1080/15230430.2020.1824558 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
52 |
container_issue |
1 |
container_start_page |
582 |
op_container_end_page |
595 |
_version_ |
1766286941359177728 |