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Science 5 November 2004:
Vol. 306. no. 5698, pp. 1019 - 1020
DOI: 10.1126/science.1101865
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Reports

Biodiversity Effects on Soil Processes Explained by Interspecific Functional Dissimilarity

D. A. Heemsbergen,1,2 M. P. Berg,1 M. Loreau,3 J. R. van Hal,2 J. H. Faber,2 H. A. Verhoef1*

The loss of biodiversity can have significant impacts on ecosystem functioning, but the mechanisms involved lack empirical confirmation. Using soil microcosms, we show experimentally that functional dissimilarity among detritivorous species, not species number, drives community compositional effects on leaf litter mass loss and soil respiration, two key soil ecosystem processes. These experiments confirm theoretical predictions that biodiversity effects on ecosystem functioning can be predicted by the degree of functional differences among species.

1 Vrije Universiteit, Institute of Ecological Science, Department of Animal Ecology, de Boelelaan 1085, 1081 HV Amsterdam, Netherlands.
2 Alterra, Wageningen University and Research Centre, P.O. Box 47, 6700 AA Wageningen, Netherlands.
3 Laboratoire d'Ecologie, Ecole Normale Supérieure, 46 rue d'Ulm, 75230 Paris Cedex 05, France.

* To whom correspondence should be addressed. E-mail: herman.verhoef{at}ecology.falw.vu.nl

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Average functional distinctness as a measure of the composition of assemblages.
P. J. Somerfield, K. R. Clarke, R. M. Warwick, and N. K. Dulvy (2008)
ICES J. Mar. Sci. 65, 1462-1468
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Science. ISSN 0036-8075 (print), 1095-9203 (online)