A comparison of the strength of biodiversity effects across multiple functions

Allan, Eric; Weisser, Wolfgang W.; Fischer, Markus; Schulze, Ernst-Detlef; Weigelt, Alexandra; Roscher, Christiane; Baade, Jussi; Barnard, Romain L.; Beßler, Holger; Buchmann, Nina; Ebeling, Anne; Eisenhauer, Nico; Engels, Christof; Fergus, Alexander J.F.; Gleixner, Gerd; Gubsch, Marlén; Halle, Stefan; Klein, Alexandra M.; Kertscher, Ilona; Kuu, Annely; ... (2013). A comparison of the strength of biodiversity effects across multiple functions. Oecologia, 173(1), pp. 223-237. Berlin: Springer Berlin Heidelberg 10.1007/s00442-012-2589-0

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In order to predict which ecosystem functions are most at risk from biodiversity loss, meta-analyses have generalised results from biodiversity experiments over different sites and ecosystem types. In contrast, comparing the strength of biodiversity effects across a large number of ecosystem processes measured in a single experiment permits more direct comparisons. Here, we present an analysis of 418 separate measures of 38 ecosystem processes. Overall, 45 % of processes were significantly affected by plant species richness, suggesting that, while diversity affects a large number of processes not all respond to biodiversity. We therefore compared the strength of plant diversity effects between different categories of ecosystem processes, grouping processes according to the year of measurement, their biogeochemical cycle, trophic level and compartment (above- or belowground) and according to whether they were measures of biodiversity or other ecosystem processes, biotic or abiotic and static or dynamic. Overall, and for several individual processes, we found that biodiversity effects became stronger over time. Measures of the carbon cycle were also affected more strongly by plant species richness than were the measures associated with the nitrogen cycle. Further, we found greater plant species richness effects on measures of biodiversity than on other processes. The differential effects of plant diversity on the various types of ecosystem processes indicate that future research and political effort should shift from a general debate about whether biodiversity loss impairs ecosystem functions to focussing on the specific functions of interest and ways to preserve them individually or in combination.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)
10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Community Ecology
08 Faculty of Science > Institute of Geography
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Plant Ecology
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Biodiversity

UniBE Contributor:

Allan, Eric; Fischer, Markus; Buchmann, Nina and Wilcke, Wolfgang

Subjects:

500 Science > 580 Plants (Botany)
500 Science > 570 Life sciences; biology
500 Science > 590 Animals (Zoology)

ISSN:

0029-8549

Publisher:

Springer Berlin Heidelberg

Funders:

[4] Swiss National Science Foundation

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

06 Dec 2013 23:56

Last Modified:

01 Sep 2018 02:31

Publisher DOI:

10.1007/s00442-012-2589-0

BORIS DOI:

10.7892/boris.38655

URI:

https://boris.unibe.ch/id/eprint/38655

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