Divergent growth rates of alpine larch trees (Larix lyallii Parl.) in response to microenvironmental variability
In this study we explore radial growth rates and climatic responses of alpine larch trees (Larix lyallii Parl.) growing in high elevations of the northern Rocky Mountains of Montana, USA. We examine responses between two stands of alpine larch that are separated by less than one kilometer and are gr...
Published in: | Arctic, Antarctic, and Alpine Research |
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Language: | English |
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Taylor & Francis Group
2018
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Online Access: | https://doi.org/10.1080/15230430.2017.1415626 https://doaj.org/article/e19d865bc208462497ab40837a8be693 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:e19d865bc208462497ab40837a8be693 2023-05-15T14:14:19+02:00 Divergent growth rates of alpine larch trees (Larix lyallii Parl.) in response to microenvironmental variability Evan E. Montpellier Peter T. Soulé Paul A. Knapp J. Stephen Shelly 2018-01-01 https://doi.org/10.1080/15230430.2017.1415626 https://doaj.org/article/e19d865bc208462497ab40837a8be693 en eng Taylor & Francis Group 1523-0430 1938-4246 doi:10.1080/15230430.2017.1415626 https://doaj.org/article/e19d865bc208462497ab40837a8be693 undefined Arctic, Antarctic, and Alpine Research, Vol 50, Iss 1 (2018) alpine larch aspect divergence problem growth divergence montana envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.1080/15230430.2017.1415626 2023-01-22T19:25:28Z In this study we explore radial growth rates and climatic responses of alpine larch trees (Larix lyallii Parl.) growing in high elevations of the northern Rocky Mountains of Montana, USA. We examine responses between two stands of alpine larch that are separated by less than one kilometer and are growing at similar elevations, but with different aspects. Radial growth rates from trees sampled on the southern aspect of Trapper Peak (TPS) were largely controlled by January snow-water equivalent, while summer maximum temperature was the principal radial-growth driver for trees sampled on the northern aspect of Trapper Peak (TPN). Following the coldest summer (1993) in the century-long instrumental climate record, the radial growth at TPN became greater than at TPS and was the reverse of what occurred pre-1993. We posit that an upward trend in maximum summer temperature is preferentially benefitting the trees growing on the north-facing TPN site by extending the growing season and causing earlier snowmelt, and this has caused the growth rate divergence during the past two decades. As such, our study illustrates that the growth-divergence phenomenon noted in other high-elevation species, whereby macroenvironmental changes are eliciting responses at the microenvironmental level, occurs within stands of alpine larch growing in western Montana. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Unknown Arctic, Antarctic, and Alpine Research 50 1 |
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Open Polar |
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Unknown |
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language |
English |
topic |
alpine larch aspect divergence problem growth divergence montana envir geo |
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alpine larch aspect divergence problem growth divergence montana envir geo Evan E. Montpellier Peter T. Soulé Paul A. Knapp J. Stephen Shelly Divergent growth rates of alpine larch trees (Larix lyallii Parl.) in response to microenvironmental variability |
topic_facet |
alpine larch aspect divergence problem growth divergence montana envir geo |
description |
In this study we explore radial growth rates and climatic responses of alpine larch trees (Larix lyallii Parl.) growing in high elevations of the northern Rocky Mountains of Montana, USA. We examine responses between two stands of alpine larch that are separated by less than one kilometer and are growing at similar elevations, but with different aspects. Radial growth rates from trees sampled on the southern aspect of Trapper Peak (TPS) were largely controlled by January snow-water equivalent, while summer maximum temperature was the principal radial-growth driver for trees sampled on the northern aspect of Trapper Peak (TPN). Following the coldest summer (1993) in the century-long instrumental climate record, the radial growth at TPN became greater than at TPS and was the reverse of what occurred pre-1993. We posit that an upward trend in maximum summer temperature is preferentially benefitting the trees growing on the north-facing TPN site by extending the growing season and causing earlier snowmelt, and this has caused the growth rate divergence during the past two decades. As such, our study illustrates that the growth-divergence phenomenon noted in other high-elevation species, whereby macroenvironmental changes are eliciting responses at the microenvironmental level, occurs within stands of alpine larch growing in western Montana. |
format |
Article in Journal/Newspaper |
author |
Evan E. Montpellier Peter T. Soulé Paul A. Knapp J. Stephen Shelly |
author_facet |
Evan E. Montpellier Peter T. Soulé Paul A. Knapp J. Stephen Shelly |
author_sort |
Evan E. Montpellier |
title |
Divergent growth rates of alpine larch trees (Larix lyallii Parl.) in response to microenvironmental variability |
title_short |
Divergent growth rates of alpine larch trees (Larix lyallii Parl.) in response to microenvironmental variability |
title_full |
Divergent growth rates of alpine larch trees (Larix lyallii Parl.) in response to microenvironmental variability |
title_fullStr |
Divergent growth rates of alpine larch trees (Larix lyallii Parl.) in response to microenvironmental variability |
title_full_unstemmed |
Divergent growth rates of alpine larch trees (Larix lyallii Parl.) in response to microenvironmental variability |
title_sort |
divergent growth rates of alpine larch trees (larix lyallii parl.) in response to microenvironmental variability |
publisher |
Taylor & Francis Group |
publishDate |
2018 |
url |
https://doi.org/10.1080/15230430.2017.1415626 https://doaj.org/article/e19d865bc208462497ab40837a8be693 |
genre |
Antarctic and Alpine Research Arctic |
genre_facet |
Antarctic and Alpine Research Arctic |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 50, Iss 1 (2018) |
op_relation |
1523-0430 1938-4246 doi:10.1080/15230430.2017.1415626 https://doaj.org/article/e19d865bc208462497ab40837a8be693 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1080/15230430.2017.1415626 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
50 |
container_issue |
1 |
_version_ |
1766286844040839168 |