Dear all, I'm currently describing phenotypic divergence patterns of several traits within a radiated genus (5 species). Several comparative studies suggest to take into account the phylogenetic relationships among the species by means of PIC or PLGS etc. for which I agree But before applying these methods I guess I should first detect whether there is Phylogenetic signal (PS)in the data and if not then I suppose I can use classic statistical methods (correct me if my reasoning is wrong)
Hence I calculated Blombergs K statistics with Picante and almost all traits have K values<1 i.e. no PS (but no p values < 0.05) hence my question concerns about the accuracy of this statistic in a small data set (N=5) Blomberg et. al. 2003 (Evolution) mentioned that it is practically impossible to get a statistical significant result if N<7 Hence, can I put confidence in this statistic? Sincerely greetings, Charlotte Drs. Charlotte De Busschere Ghent University Biology Department Terrestrial Ecology Unit Ledeganckstraat 35 B-9000 Gent Belgium tel:++32 (0)92645039 http://www.ecology.ugent.be/terec/personal.php?pers=cd _______________________________________________ R-sig-phylo mailing list R-sig-phylo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-phylo
