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dc.contributor.authorRayback, S.A.
dc.contributor.authorShrestha, K.B.
dc.contributor.authorHofgaard, Annika
dc.identifier.citationDendrochronologia. 2017, 44 193-202.nb_NO
dc.description.abstractTrees 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.nb_NO
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.subjectAbies spectabilisnb_NO
dc.subjectCassiope fastigiatanb_NO
dc.subjectForest-tundra ecotonenb_NO
dc.titleGrowth variable-specific moisture and temperature limitations in co-occuring alpine tree and shrub species, central Himalayas, Nepalnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.subject.nsiVDP::Zoologiske og botaniske fag: 480nb_NO
dc.subject.nsiVDP::Zoology and botany: 480nb_NO
dc.relation.projectNorges forskningsråd: 176065nb_NO
dc.relation.projectAndre: University of Vermontnb_NO
dc.relation.projectAndre: The Grolle Olsens Fundnb_NO
dc.relation.projectNorges forskningsråd: 160022nb_NO
dc.relation.projectEgen institusjon: University of Bergennb_NO
dc.relation.projectAndre: European Cooperation in Science and Technologynb_NO
cristin.unitnameAvdeling for terrestrisk økologi

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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal