Technical Comments

Comment on “Plant diversity increases with the strength of negative density dependence at the global scale”

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Science  25 May 2018:
Vol. 360, Issue 6391, eaar4685
DOI: 10.1126/science.aar4685


LaManna et al. (Reports, 30 June 2017, p. 1389) found higher conspecific negative density dependence in tree communities at lower latitudes, yielding a possible mechanistic explanation for the latitudinal diversity gradient. We show that their results are artifacts of a selective data transformation and a forced zero intercept in their fitted model. A corrected analysis shows no latitudinal trend.

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