Bias-corrected Pearson estimating functions for Taylor’s power law applied to benthic macrofauna data

Bent Jørgensen, Clarice G.B. Demétrio, Erik Kristensen, Gary Thomas Banta, Hans Christian Petersen, Matthieu Delfosse

Publikation: Bidrag til tidsskriftTidsskriftartikelpeer review

Abstract

Estimation of Taylor’s power law for species abundance data may be performed by linear regression of the log empirical variances on the log means, but this method suffers from a problem of bias for sparse data. We show that the bias may be reduced by using a bias-corrected Pearson estimating function. Furthermore, we investigate a more general regression model allowing for site-specific covariates. This method may be efficiently implemented using a Newton scoring algorithm, with standard errors calculated from the inverse Godambe information matrix. The method is applied to a set of biomass data for benthic macrofauna from two Danish estuaries.
OriginalsprogEngelsk
TidsskriftStatistics & Probability Letters
Vol/bind81
Udgave nummer7
Sider (fra-til)749-758
Antal sider10
ISSN0167-7152
DOI
StatusUdgivet - 2011

Emneord

  • population
  • bentisk fauna

Citer dette