Procedures for the Analysis of Comparative Data Using Phylogenetically Independent Contrasts

@article{Garland1992ProceduresFT,
  title={Procedures for the Analysis of Comparative Data Using Phylogenetically Independent Contrasts},
  author={Theodore Garland and Paul H. Harvey and Anthony R. Ives},
  journal={Systematic Biology},
  year={1992},
  volume={41},
  pages={18-32}
}
We discuss and clarify several aspects of applying Felsenstein's (1985, Am. Nat. 125: 1n15) procedures to test for correlated evolution of continuous traits. This is one of several available comparative methods that maps data for phenotypic traits onto an existing phylogenetic tree (derived from independent information). Application of Felsenstein's method does not require an entirely dichotomous topology. It also does not require an assumption of gradual, clocklike character evolution, as… 

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