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On Fitting the Poisson Lognormal Distribution to Species-Abundance Data
M. G. Bulmer
Vol. 30, No. 1 (Mar., 1974), pp. 101-110
Published by: International Biometric Society
Stable URL: http://www.jstor.org/stable/2529621
Page Count: 10
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An extension of MacArthur's "broken stick" model is proposed to explain why species abundances should be lognormally distributed. A method of fitting the compound Poisson lognormal distribution by maximum likelihood is described; a computer program is available for performing the calculations. It is shown how the information theory measure of species diversity can be estimated from the parameters of the fitted distribution.
Biometrics © 1974 International Biometric Society