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      Biodiversity and ecosystem functioning in naturally assembled communities

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      Biological Reviews

      Wiley

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          Quantifying the evidence for biodiversity effects on ecosystem functioning and services.

          Concern is growing about the consequences of biodiversity loss for ecosystem functioning, for the provision of ecosystem services, and for human well being. Experimental evidence for a relationship between biodiversity and ecosystem process rates is compelling, but the issue remains contentious. Here, we present the first rigorous quantitative assessment of this relationship through meta-analysis of experimental work spanning 50 years to June 2004. We analysed 446 measures of biodiversity effects (252 in grasslands), 319 of which involved primary producer manipulations or measurements. Our analyses show that: biodiversity effects are weaker if biodiversity manipulations are less well controlled; effects of biodiversity change on processes are weaker at the ecosystem compared with the community level and are negative at the population level; productivity-related effects decline with increasing number of trophic links between those elements manipulated and those measured; biodiversity effects on stability measures ('insurance' effects) are not stronger than biodiversity effects on performance measures. For those ecosystem services which could be assessed here, there is clear evidence that biodiversity has positive effects on most. Whilst such patterns should be further confirmed, a precautionary approach to biodiversity management would seem prudent in the meantime.
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            Benefits of plant diversity to ecosystems: immediate, filter and founder effects

             J. P. Grime (1998)
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              Vive la différence: plant functional diversity matters to ecosystem processes

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                Author and article information

                Journal
                Biological Reviews
                Biol Rev
                Wiley
                1464-7931
                1469-185X
                February 06 2019
                February 06 2019
                Affiliations
                [1 ]Systematic Botany and Functional Biodiversity, Institute of BiologyLeipzig University Johannisallee 21‐23, 04103 Leipzig Germany
                Article
                10.1111/brv.12499
                © 2019

                http://doi.wiley.com/10.1002/tdm_license_1.1

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