Comment on "Conspecific negative density dependence and forest diversity".

Dickie, Ian A; Hurst, Jennifer M; Bellingham, Peter J · Science · 2012

editorial · Level V

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Abstract

Johnson and colleagues (Reports, 18 May 2012, p. 904) claim that conspecific negative density dependence is a pervasive mechanism driving forest diversity, especially for rare tree species. We show that their results are due to a statistical bias in their analysis caused by the exclusion of joint absences.

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