DOI: 10.1111/gcb.13114
论文题名: Plant responses to climatic extremes: Within-species variation equals among-species variation
作者: Malyshev A.V. ; Arfin Khan M.A.S. ; Beierkuhnlein C. ; Steinbauer M.J. ; Henry H.A.L. ; Jentsch A. ; Dengler J. ; Willner E. ; Kreyling J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2016
卷: 22, 期: 1 起始页码: 449
结束页码: 464
语种: 英语
英文关键词: Disturbance
; Extreme climatic events
; Genetic diversity
; Inter-specific variation
; Intraspecific variation
; Niche models
; Provenance
Scopus关键词: biodiversity
; climate effect
; disturbance
; drought
; frost
; global warming
; interspecific variation
; intraspecific variation
; niche
; Arrhenatherum elatius
; Poaceae
; carbon
; chlorophyll
; nitrogen
; adaptation
; biodiversity
; biomass
; climate change
; comparative study
; drought
; ecotype
; genetic variation
; genetics
; metabolism
; physiology
; plant
; plant development
; plant root
; temperature
; Adaptation, Physiological
; Biodiversity
; Biomass
; Carbon
; Chlorophyll
; Climate Change
; Droughts
; Ecotype
; Genetic Variation
; Nitrogen
; Plant Development
; Plant Roots
; Plants
; Temperature
英文摘要: Within-species and among-species differences in growth responses to a changing climate have been well documented, yet the relative magnitude of within-species vs. among-species variation has remained largely unexplored. This missing comparison impedes our ability to make general predictions of biodiversity change and to project future species distributions using models. We present a direct comparison of among- versus within-species variation in response to three of the main stresses anticipated with climate change: drought, warming, and frost. Two earlier experiments had experimentally induced (i) summer drought and (ii) spring frost for four common European grass species and their ecotypes from across Europe. To supplement existing data, a third experiment was carried out, to compare variation among species from different functional groups to within-species variation. Here, we simulated (iii) winter warming plus frost for four grasses, two nonleguminous, and two leguminous forbs, in addition to eleven European ecotypes of the widespread grass Arrhenatherum elatius. For each experiment, we measured: (i) C/N ratio and biomass, (ii) chlorophyll content and biomass, and (iii) plant greenness, root 15N uptake, and live and dead tissue mass. Using coefficients of variation (CVs) for each experiment and response parameter, a total of 156 within- vs. among-species comparisons were conducted, comparing within-species variation in each of four species with among-species variation for each seed origin (five countries). Of the six significant differences, within-species CVs were higher than among-species CVs in four cases. Partitioning of variance within each treatment in two of the three experiments showed that within-species variability (ecotypes) could explain an additional 9% of response variation after accounting for the among-species variation. Our observation that within-species variation was generally as high as among-species variation emphasizes the importance of including both within- and among-species variability in ecological theory (e.g., the insurance hypothesis) and for practical applications (e.g., biodiversity conservation). © 2016 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61535
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Experimental Plant Ecology, Institute of Botany and Landscape Ecology, Greifswald University, Soldmannstrasse 15, Greifswald, Germany; Disturbance Ecology, BayCEER, University of Bayreuth, Bayreuth, Germany; Department of Forestry and Environmental Science, Shahjalal University of Science and Technology, Sylhet, Bangladesh; Biogeography, BayCEER, University of Bayreuth, Bayreuth, Germany; Department of Biology, University of Western Ontario, London, ON, Canada; Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Genebank, Satellite Collections North, Malchow/Poel, Germany; Plant Ecology, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
Recommended Citation:
Malyshev A.V.,Arfin Khan M.A.S.,Beierkuhnlein C.,et al. Plant responses to climatic extremes: Within-species variation equals among-species variation[J]. Global Change Biology,2016-01-01,22(1)