Comment on "A Keystone Mutualism Drives Pattern in a Power Function"

Author:

Alonso David1,Pascual Mercedes1

Affiliation:

1. Ecology and Evolutionary Biology, University of Michigan, 830 North University Avenue, Ann Arbor, MI 48109–1048, USA.

Abstract

Vandermeer and Perfecto (Reports, 17 February 2006, p. 1000) reported a general power law pattern in the distribution of a common agricultural pest. However, there is an exact analytical solution for the expected cluster distribution under the proposed null model of density-independent growth in a patchy landscape. Reanalysis of the data shows that the system is not in a critical state but confirms the importance of a mutualism.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference17 articles.

1. A Keystone Mutualism Drives Pattern in a Power Function

2. Notice that δ is an effective per capita loss rate including actual death and emigration and that λ is not a per capita rate but the total number of immigrants entering the subpopulation per unit time.

3. ON SOME MODES OF POPULATION GROWTH LEADING TO R. A. FISHER'S LOGARITHMIC SERIES DISTRIBUTION

4. Comparing Classical Community Models: Theoretical Consequences for Patterns of Diversity

5. D. W. Purves, S. W. Pacala, in Biotic Interactions in the Tropics, D. Burslem, M. Pinard, S. Hartley, Eds. (Cambridge Univ. Press, Cambridge, 2006), pp. 107–138.

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