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000010922 084__ $$2WoS$$aPlant Sciences
000010922 084__ $$2WoS$$aEcology
000010922 1001_ $$0P:(DE-HGF)0$$aRoscher, C.$$b0
000010922 245__ $$aPlant resource-use characteristics as predictors for species contribution to community biomass in experimental grasslands
000010922 260__ $$aMünchen$$bElsevier$$c2011
000010922 300__ $$a1 - 13
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000010922 440_0 $$025347$$aPerspectives in plant ecoloy evolution and systematics$$v13$$y1
000010922 500__ $$aWe thank the many people who helped with the management of the experiment, establishment and maintenance of the "plant individual garden", plant and soil sampling and preparation for chemical analyses in particular Ulrike Wehmeier and the gardeners Steffen Eismann, Silke Hengelhaupt, Sylvia Junghans and Heike Scheffler. Ines Hilke and Sandra Matthaei conducted chemical analyses. The Jena Experiment is funded by the German Research Foundation (FOR 456) with additional support from the Friedrich Schiller University Jena and the Max Planck Society. We thank M.A. Huston and an anonymous reviewer for their valuable comments which helped to improve the manuscript.
000010922 520__ $$aIncreasing productivity of mixtures as compared to monocultures has been reported from numerous experimental studies, but so far the variable contribution of individual species to higher mixture productivity in biodiversity experiments is not well understood. To address this issue, we quantified the productivity of 60 species in monocultures and mixtures of varying species richness (2, 4, 8, 16, 60) and functional group number and composition (1, 2, 3,4; legumes, grasses, small herbs, tall herbs) and tested how species properties are related to species performance in mixtures in the third year after sowing. We analysed monoculture biomass, plant biomass from separately grown plant individuals (=estimate of plant growth rates), and the monoculture resource-use characteristics canopy height and structure (leaf area index) as indicators for light acquisition, and soil nitrate concentration (=estimate of depletion of plant available nitrogen) and biomass:N ratios (=estimate of biomass produced per unit plant N) as indicators for nitrogen acquisition and use. High monoculture productivity was related to different combinations of resource-use characteristics. The biomass of a species and its proportional contribution to mixture biomass correlated positively with species relative yields, suggesting that highly productive mixture species were most important for an overyielding of mixtures. Although monoculture biomass was a significant predictor for species performance in mixtures except for grasses, a combination of monoculture biomass, plant growth rates and resource-use traits associated with nutrient and light acquisition explained non-legume species performance best. Legume performance was best associated with their monoculture biomass and traits associated with light acquisition. In spite of the fact that high species performance in mixtures was associated with a species' competitive ability as represented by monoculture productivity, growth rates and resource-use traits, our results suggest that species uniqueness in resource acquisition strategies increases the chance for niche differentiation among overyielding species. (C) 2010 Elsevier GmbH. All rights reserved.
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000010922 65320 $$2Author$$aLight interception
000010922 65320 $$2Author$$aPlant height
000010922 65320 $$2Author$$aProductivity
000010922 65320 $$2Author$$aRelative yield
000010922 65320 $$2Author$$aSoil nitrate depletion
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000010922 7001_ $$0P:(DE-HGF)0$$aScherer-Lorenzen, M.$$b1
000010922 7001_ $$0P:(DE-HGF)0$$aSchumacher, J.$$b2
000010922 7001_ $$0P:(DE-Juel1)129409$$aTemperton, V. M.$$b3$$uFZJ
000010922 7001_ $$0P:(DE-HGF)0$$aBuchmann, N.$$b4
000010922 7001_ $$0P:(DE-HGF)0$$aSchulze, E.-D.$$b5
000010922 773__ $$0PERI:(DE-600)2038178-5$$a10.1016/j.ppees.2010.11.001$$gVol. 13, p. 1 - 13$$p1 - 13$$q13<1 - 13$$tPerspectives in plant ecology, evolution and systematics$$v13$$x1433-8319$$y2011
000010922 8567_ $$uhttp://dx.doi.org/10.1016/j.ppees.2010.11.001
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