A Comparative Method

@article{Bell1989ACM,
  title={A Comparative Method},
  author={Graham Bell},
  journal={The American Naturalist},
  year={1989},
  volume={133},
  pages={553 - 571}
}
  • G. Bell
  • Published 1 April 1989
  • Biology
  • The American Naturalist
The main methodological problem of comparative biology is to distinguish between effects attributable to ancestry and those attributable to function. The nested analysis of variance addresses this problem by partitioning variance and covariance between taxonomic levels. The estimation of variance components and the derived intraclass correlation coefficient can be used to describe the overall increase in variation through time and the relation between variances at different taxonomic levels… Expand
METHODS FOR THE ANALYSIS OF COMPARATIVE DATA IN EVOLUTIONARY BIOLOGY
  • M. Lynch
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 1991
TLDR
Methods are presented for the estimation of phylogenywide means of characters, the variance‐covariance structure of the components of taxon‐specific means, and the mean phenotypes of ancestral taxa and it is argued that the covarianceructure of phylogenetic effects provides a description of a macroevolutionary pattern. Expand
Comparative Analyses of Phylogenetic Effects in the Life-History Patterns of Iguanid Reptiles
TLDR
With the exception of clutch size, the results show that the phylogenetic effect on the life-history traits is largely attributable to correlation with body size, and residual variation in the remaining traits may in part represent species-specific responses to unique ecological selective regimes. Expand
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  • Biology, Medicine
  • American journal of physical anthropology
  • 1994
TLDR
Analysis of two data sets, using taxonomy to define levels of the nested hierarchy, suggests that it has been common for published studies of interspecific allometry to severely overestimate the number of degrees of freedom. Expand
Spatial autocorrelation, phylogenetic constraints, and the causes of sexual dimorphism in primates
TLDR
It is concluded that, even in terms of the analysis by Cheverud and co-workers (1985), phylogenetic inertia is not the primary reason for body size dimorphism. Expand
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TLDR
A new and generic approach is proposed that expresses the topological properties of the phylogenetic tree via an orthonormal basis, which is further used to decompose the trait variance and propose four complementary test statistics to be computed from orthogram values that help to diagnose both the intensity and the nature of phylogenetic dependence. Expand
Lineage‐dependent rates of evolutionary diversification: analysis of bivariate ellipses
TLDR
Ellipse analysis can provide a more detailed characterization of trait evolution than other comparative methods, taking advantage of the additional information provided by the shape and, in some cases, the dimensions of the bivariate ellipse. Expand
Applications of phylogenetically independent contrasts : a mixed progress report
TLDR
It is argued that it is premature at this point to insist upon particular phylogenetically based approaches to comparative analysis, even though pressure is mounting to reject conventional practices of calculating regressions and correlations from trait values of taxa in favor of PICs. Expand
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TLDR
Statistics and a null model for estimating phylogenetic effects in comparative data are proposed and a model-independent measure of autocorrelation (Moran's I) is applied for estimating whether cross-taxonomic trait variation is related to phylogeny. Expand
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TLDR
Any (continuous) trait that is inherited from ancestors is appropriate for analysis, regardless of the mechanism of inheritance (e.g., genetic or cultural), according to Felsenstein's method. Expand
AN EIGENVECTOR METHOD FOR ESTIMATING PHYLOGENETIC INERTIA
TLDR
It is concluded that PVR can be a useful alternative to an autoregressive method in comparative data analysis and is more efficient at smaller sample sizes and when level of phylogenetic inertia is low. Expand
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