Comment on "On the regulation of populations of mammals, birds, fish, and insects" II.
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.
Ross
Joshua V
JV
Department of Mathematics, University of Queensland, St. Lucia, QLD 4072, Australia. jvr@maths.uq.edu.au
D000818:Animals; D001717:Birds; D003247:Conservation of Natural Resources; D017753:Ecosystem; D005399:Fishes; D007313:Insecta; D016015:Logistic Models; D008322:Mammals; D008433:Mathematics; D008954:Models, Biological; D011156:Population Density; D011157:Population Dynamics; D011158:Population Growth; D012044:Regression Analysis