Technical Comments

Comment on “Worldwide evidence of a unimodal relationship between productivity and plant species richness”

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Science  04 Dec 2015:
Vol. 350, Issue 6265, pp. 1177
DOI: 10.1126/science.aad4836

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Abstract

Fraser et al. (Reports, 17 July 2015, p. 302) report that a hump-backed model describes the worldwide relationship between productivity and plant species richness in grassland communities. We reanalyze their data from a larger-scale perspective, using local species pool. This influences richness far more strongly than productivity, and, when this is taken into account, the hump-backed richness-productivity relationship disappears.

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