Plant responses to climatic extremes: Within-species variation equals among-species variation

Beitrag in einer Fachzeitschrift

Details zur Publikation

Autorinnen und Autoren: Malyshev AV, Khan MASA, Beierkuhnlein C, Steinbauer M, Henry HAL, Jentsch A, Dengler J, Willner E, Kreyling J
Zeitschrift: Global Change Biology
Verlag: Blackwell Publishing Ltd
Jahr der Veröffentlichung: 2016
Band: 22
Heftnummer: 1
Seitenbereich: 449-464
ISSN: 1354-1013
Sprache: Englisch


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).

FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Steinbauer, Manuel Prof. Dr.
Professur für System-Paläobiologie

Einrichtungen weiterer Autorinnen und Autoren

Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK) / Leibniz Institute of Plant Genetics and Crop Plant Research
Universität Bayreuth
Universität Greifswald
Western University


Malyshev, A.V., Khan, M.A.S.A., Beierkuhnlein, C., Steinbauer, M., Henry, H.A.L., Jentsch, A.,... Kreyling, J. (2016). Plant responses to climatic extremes: Within-species variation equals among-species variation. Global Change Biology, 22(1), 449-464.

Malyshev, Andrey V., et al. "Plant responses to climatic extremes: Within-species variation equals among-species variation." Global Change Biology 22.1 (2016): 449-464.


Zuletzt aktualisiert 2018-11-11 um 20:50