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A method for adjusting means and variances of comparative data for use in a phylogenetic analysis of variance
Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution. Stockholm University, Faculty of Science, Department of Zoology.
2006 (English)In: Evolutionary Ecology Research, ISSN 1522-0613, E-ISSN 1937-3791, Vol. 8, 975-995 p.Article in journal (Refereed) Published
Abstract [en]

Question: Is there a general method for applying an analysis of variance (ANOVA) to phylogenetic data sets that allows for the incorporation of any assumption of evolutionary model?

Mathematical method: I describe a method that enables the calculation of means and variances of the traits of monophyletically related species. These means and variances are calculated using evolutionary rates derived from estimated nodal values and can thus incorporate any assumption of evolutionary model. Furthermore, calculations of phylogenetically corrected mean squares are described through a worked example to show how these can be implemented into a complete-blocks ANOVA.

Key assumptions: The assumptions of this method are, as for all comparable methods, that the phylogeny is known without error and that estimated nodal values are correct. Since the method can utilize nodal values using any evolutionary model, the latter assumption can to a degree be circumvented.

Conclusions: I compare the presented method to alternative tests conceptually, but also using an idealized example and an example derived from the real world, to show the utility of the approach described herein.

Place, publisher, year, edition, pages
2006. Vol. 8, 975-995 p.
Keyword [en]
analysis of variance, comparative methods, independent contrasts, phylogenies
National Category
Biological Sciences
Research subject
Zoology
Identifiers
URN: urn:nbn:se:su:diva-32107OAI: oai:DiVA.org:su-32107DiVA: diva2:279470
Available from: 2009-12-03 Created: 2009-12-03 Last updated: 2017-12-12Bibliographically approved

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