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dc.contributor.authorCui, Haijun
dc.contributor.authorTöpper, Joachim Paul
dc.contributor.authorYang, Yan
dc.contributor.authorVandvik, Vigdis
dc.contributor.authorWang, Genxu
dc.description.abstractClimate warming poses considerable challenges for alpine plant species, especially for competitively inferior ones with resource-conservative adaptations to cold climates. The Himalayas are warming at rates considerably faster than the global average, so it is particularly important to assess how and through which mechanisms alpine plant species are affected there. We employed a demographic approach in a climate change experiment, where vegetation turfs were transplanted reciprocally between the central parts of the study species’ (Viola biflora L. var. rockiana) range and the warmer range margin, with a temperature difference of ca. 1 C. In addition, turfs were also transplanted outside the range to warmer habitats, simulating two different scenarios of climate warming, C1 and C4 C. Transplanting to warmer sites negatively impacted population growth rates (l), survival and clonality, but did not affect growth and fecundity, while the productivity of the plant community increased. The reciprocal transplants to the colder habitat showed the opposite effects, for both V. biflora and the plant community, indicating plastic responses of the study species, driven by changes in plant–plant competition. However, the leaf traits underlying the modeled population growth rates were origin-site specific and not affected by the climate-change treatments over the study period, suggesting local adaptation of growth form to competition in the warmer range margin, and to climate adversity in the colder range center. The transplants outside the present species’ range showed consistently stronger reductions in population growth rate and survival, with mortality of 90–100% in the C4 C treatment. This illustrates that climatic changes beyond species’ present climatic ranges pose a serious risk for range contraction and extinction for Himalayan alpine species in the near future. As V. biflora seems mostly limited by competition under warming, its persistence in a future climate may become increasingly dependent on keeping competitive effects from the surrounding community low, for instance by management interventions like grazing and mowing.nb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.subjectclimate changenb_NO
dc.subjectreciprocal transplant experimentnb_NO
dc.subjectaltitudinal gradientnb_NO
dc.subjectpopulation growth ratenb_NO
dc.subjectvital ratenb_NO
dc.subjectViola biflora var. rockiananb_NO
dc.subjectleaf traitsnb_NO
dc.titlePlastic Population Effects and Conservative Leaf Traits in a Reciprocal Transplant Experiment Simulating Climate Warming in the Himalayasnb_NO
dc.title.alternativePlastic Population Effects and Conservative Leaf Traits in a Reciprocal Transplant Experiment Simulating Climate Warming in the Himalayasnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.rights.holderCopyright © 2018 Cui, Töpper, Yang, Vandvik and Wang.nb_NO
dc.subject.nsiVDP::Zoologiske og botaniske fag: 480nb_NO
dc.subject.nsiVDP::Zoology and botany: 480nb_NO
dc.source.journalFrontiers in Plant Sciencenb_NO
dc.relation.projectAndre: Norwegian Center for International Cooperation in Educationnb_NO

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal