Comment on "On the Regulation of Populations of Mammals, Birds, Fish, and Insects" II
Joshua V. Ross
Sibly
et al. (Reports, 22 July 2005, p. 607) recently estimated
the relationship between population size and growth rate for
1780 time series of various species. I explain why some aspects
of their analysis are questionable and, therefore, why their
results and estimation procedure should be used with care.
Department of Mathematics, University of Queensland, St. Lucia, QLD 4072, Australia.
E-mail: jvr{at}maths.uq.edu.au