Technical Comments

Response to Comments on “A Keystone Mutualism Drives Pattern in a Power Function”

Science  22 Sep 2006:
Vol. 313, Issue 5794, pp. 1739d
DOI: 10.1126/science.1129133

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The comments by Alonso and Pascual and by Pueyo and Jovani clarify the power law distribution of subpopulations of the scale insect Coccus viridis. The low density deviations are now seen as part of a negative binomial distribution and the high density deviations as resulting from a change in the parameters of the power law. Our biological conclusion that an ant mutualism modifies the form of the power law is thus strengthened.

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