Technical Comments

Comment on "The Illusion of Invariant Quantities in Life Histories"

Science  14 Apr 2006:
Vol. 312, Issue 5771, pp. 198
DOI: 10.1126/science.1123679

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Nee et al. (Reports, 19 August 2005, p. 1236) used a null model to argue that life history invariants are illusions. We show that their results are largely inconsequential for life history theory because the authors confound two definitions of invariance, and rigorous analysis of their null model demonstrates that it does not match observed data.

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