Growth variable-specific moisture and temperature limitations in co-occuring alpine tree and shrub species, central Himalayas, Nepal
Trees and shrubs found in the forest-tundra ecotone (FTE) are considered to be highly sensitive to climate change, but their response to climatic drivers is only partially understood. We use dendrochronological techniques to develop growth chronologies for co-occuning tree (Abies spectabilis, radial...
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ftninstnf:oai:brage.nina.no:11250/2446989 2023-05-15T18:40:20+02:00 Growth variable-specific moisture and temperature limitations in co-occuring alpine tree and shrub species, central Himalayas, Nepal Rayback, S.A. Shrestha, K.B. Hofgaard, Annika Himalayas 2017 application/pdf http://hdl.handle.net/11250/2446989 https://doi.org/10.1016/j.dendro.2017.06.001 eng eng Norges forskningsråd: 176065 Andre: University of Vermont Andre: The Grolle Olsens Fund Norges forskningsråd: 160022 Egen institusjon: University of Bergen Andre: European Cooperation in Science and Technology Dendrochronologia. 2017, 44 193-202. urn:issn:1125-7865 http://hdl.handle.net/11250/2446989 https://doi.org/10.1016/j.dendro.2017.06.001 cristin:1478505 Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no CC-BY-NC-ND 193-202 44 Dendrochronologia Abies spectabilis Cassiope fastigiata Dendroecology Forest-tundra ecotone VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Journal article Peer reviewed 2017 ftninstnf https://doi.org/10.1016/j.dendro.2017.06.001 2021-12-23T07:16:46Z Trees and shrubs found in the forest-tundra ecotone (FTE) are considered to be highly sensitive to climate change, but their response to climatic drivers is only partially understood. We use dendrochronological techniques to develop growth chronologies for co-occuning tree (Abies spectabilis, radial growth and height) and dwarf shrub ( Cassiope frutigiata, stem elongation and leaf number) species in central Himalaya, Nepal, in order to identify and compare climate drivers of growth (temperature, precipitation, moisture (SPEI)). Our results reveal growth variable-specific responses characterized by a predominant response to previous year and non-growing season climate, and to length of the monsoon season. Tree radial growth was significantly correlated with temperature during previous summer and non-growing season months, and moisture in the late monsoon (September). Tree height increment correlated with late-monsoon temperature and moisture in the previous post-monsoon. Shrub stem elongation mainly correlated with temperature and moisture conditions in previous year pre-monsoon (May), while leaf production correlated with moisture in previous pre-monsoon and monsoon periods, and precipitation in the late-monsoon. These results contribute new evidence that mid-latitude FTE tree and shrub species and individual growth variables are limited by unique climate drivers operational at different periods during and outside the monsoon season. Within the context of rising temperatures and increased precipitation variability in the Himalayas, moisture may become a more frequent stressor on tree and shrub growth. Consideration of climate and site variable interactions at alpine sites is important to detecting subtleties of growth response. Dendroecological studies of co-occurring tree and shrub species help to identify concomitant and disparate growth responses to climate drivers and in turn, provide information and insight into FTE changes in the Himalayas and elsewhere. acceptedVersion Article in Journal/Newspaper Tundra Norwegian Institute for Nature Research: Brage NINA Dendrochronologia 44 193 202 |
institution |
Open Polar |
collection |
Norwegian Institute for Nature Research: Brage NINA |
op_collection_id |
ftninstnf |
language |
English |
topic |
Abies spectabilis Cassiope fastigiata Dendroecology Forest-tundra ecotone VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
spellingShingle |
Abies spectabilis Cassiope fastigiata Dendroecology Forest-tundra ecotone VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Rayback, S.A. Shrestha, K.B. Hofgaard, Annika Growth variable-specific moisture and temperature limitations in co-occuring alpine tree and shrub species, central Himalayas, Nepal |
topic_facet |
Abies spectabilis Cassiope fastigiata Dendroecology Forest-tundra ecotone VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
description |
Trees and shrubs found in the forest-tundra ecotone (FTE) are considered to be highly sensitive to climate change, but their response to climatic drivers is only partially understood. We use dendrochronological techniques to develop growth chronologies for co-occuning tree (Abies spectabilis, radial growth and height) and dwarf shrub ( Cassiope frutigiata, stem elongation and leaf number) species in central Himalaya, Nepal, in order to identify and compare climate drivers of growth (temperature, precipitation, moisture (SPEI)). Our results reveal growth variable-specific responses characterized by a predominant response to previous year and non-growing season climate, and to length of the monsoon season. Tree radial growth was significantly correlated with temperature during previous summer and non-growing season months, and moisture in the late monsoon (September). Tree height increment correlated with late-monsoon temperature and moisture in the previous post-monsoon. Shrub stem elongation mainly correlated with temperature and moisture conditions in previous year pre-monsoon (May), while leaf production correlated with moisture in previous pre-monsoon and monsoon periods, and precipitation in the late-monsoon. These results contribute new evidence that mid-latitude FTE tree and shrub species and individual growth variables are limited by unique climate drivers operational at different periods during and outside the monsoon season. Within the context of rising temperatures and increased precipitation variability in the Himalayas, moisture may become a more frequent stressor on tree and shrub growth. Consideration of climate and site variable interactions at alpine sites is important to detecting subtleties of growth response. Dendroecological studies of co-occurring tree and shrub species help to identify concomitant and disparate growth responses to climate drivers and in turn, provide information and insight into FTE changes in the Himalayas and elsewhere. acceptedVersion |
format |
Article in Journal/Newspaper |
author |
Rayback, S.A. Shrestha, K.B. Hofgaard, Annika |
author_facet |
Rayback, S.A. Shrestha, K.B. Hofgaard, Annika |
author_sort |
Rayback, S.A. |
title |
Growth variable-specific moisture and temperature limitations in co-occuring alpine tree and shrub species, central Himalayas, Nepal |
title_short |
Growth variable-specific moisture and temperature limitations in co-occuring alpine tree and shrub species, central Himalayas, Nepal |
title_full |
Growth variable-specific moisture and temperature limitations in co-occuring alpine tree and shrub species, central Himalayas, Nepal |
title_fullStr |
Growth variable-specific moisture and temperature limitations in co-occuring alpine tree and shrub species, central Himalayas, Nepal |
title_full_unstemmed |
Growth variable-specific moisture and temperature limitations in co-occuring alpine tree and shrub species, central Himalayas, Nepal |
title_sort |
growth variable-specific moisture and temperature limitations in co-occuring alpine tree and shrub species, central himalayas, nepal |
publishDate |
2017 |
url |
http://hdl.handle.net/11250/2446989 https://doi.org/10.1016/j.dendro.2017.06.001 |
op_coverage |
Himalayas |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
193-202 44 Dendrochronologia |
op_relation |
Norges forskningsråd: 176065 Andre: University of Vermont Andre: The Grolle Olsens Fund Norges forskningsråd: 160022 Egen institusjon: University of Bergen Andre: European Cooperation in Science and Technology Dendrochronologia. 2017, 44 193-202. urn:issn:1125-7865 http://hdl.handle.net/11250/2446989 https://doi.org/10.1016/j.dendro.2017.06.001 cristin:1478505 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.dendro.2017.06.001 |
container_title |
Dendrochronologia |
container_volume |
44 |
container_start_page |
193 |
op_container_end_page |
202 |
_version_ |
1766229645779271680 |