Plant Diversity and Productivity Experiments in European Grasslands

Author:

Hector A.1,Schmid B.2,Beierkuhnlein C.3,Caldeira M. C.4,Diemer M.2,Dimitrakopoulos P. G.5,Finn J. A.6,Freitas H.4,Giller P. S.6,Good J.6,Harris R.6,Högberg P.7,Huss-Danell K.8,Joshi J.2,Jumpponen A.78,Körner C.9,Leadley P. W.9,Loreau M.10,Minns A.1,Mulder C. P. H.78,O'Donovan G.6,Otway S. J.1,Pereira J. S.4,Prinz A.3,Read D. J.11,Scherer-Lorenzen M.12,Schulze E.-D.12,Siamantziouras A.-S. D.5,Spehn E. M.9,Terry A. C.11,Troumbis A. Y.5,Woodward F. I.11,Yachi S.10,Lawton J. H.1

Affiliation:

1. Natural Environmental Research Council (NERC) Centre for Population Biology, Imperial College at Silwood Park, Ascot, Berkshire, UK, GB-SL5 7PY.

2. Institut für Umweltwissenschaften, Universität Zürich, Winterthurerstrasse 190, Zürich, Switzerland, CH-8057.

3. Lehrstuhl Biogeographie, Universität Bayreuth, Bayreuth, Germany, D-95440.

4. Departmentos de Engenharia Florestal e de Botânica, Universidade Tecnica de Lisboa, Tapada da Ajuda, Lisboa, Portugal, PT-1399.

5. Biodiversity Conservation Laboratory, Department of Environmental Studies, University of the Aegean, Karadoni 17, Mytilene, Lesbos, Greece, GR-811 00.

6. Department of Zoology and Animal Ecology, University College Cork, Lee Maltings, Prospect Row, Cork, Ireland.

7. Department of Forest Ecology, Swedish University of Agricultural Sciences, Umeå, Sweden, SE-90183.

8. Crop Science Section, Department of Agricultural Research for Northern Sweden, Box 4097, Swedish University of Agricultural Sciences, Umeå, Sweden, SE-90403.

9. Institute of Botany, University of Basel, Schoenbeinstrasse 6, Basel, Switzerland, CH-4056.

10. Laboratoire d'Ecologie, UMR 7625, Ecole Normale Supérieure, 46 Rue d'Ulm, F-72530 Paris Cedex 05, France, FR-75230.

11. Department of Animal and Plant Sciences, University of Sheffield, South Yorkshire, U.K., GB-S10 2TN.

12. Max-Planck-Institute for Biogeochemistry, Postfach 10 01 64, Jena, Germany, D-07701.

Abstract

At eight European field sites, the impact of loss of plant diversity on primary productivity was simulated by synthesizing grassland communities with different numbers of plant species. Results differed in detail at each location, but there was an overall log-linear reduction of average aboveground biomass with loss of species. For a given number of species, communities with fewer functional groups were less productive. These diversity effects occurred along with differences associated with species composition and geographic location . Niche complementarity and positive species interactions appear to play a role in generating diversity-productivity relationships within sites in addition to sampling from the species pool.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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