bird.families {ape} | R Documentation |
Phylogeny of the Families of Birds From Sibley and Ahlquist
Description
This data set describes the phylogenetic relationships of the families of birds as reported by Sibley and Ahlquist (1990). Sibley and Ahlquist inferred this phylogeny from an extensive number of DNA/DNA hybridization experiments. The “tapestry” reported by these two authors (more than 1000 species out of the ca. 9000 extant bird species) generated a lot of debates.
The present tree is based on the relationships among families. A few
families were not included in the figures in Sibley and Ahlquist, and
thus are not included here as well. The branch lengths were calculated
from the values of \Delta T_{50}H
as found in Sibley
and Ahlquist (1990, figs. 354, 355, 356, and 369).
Usage
data(bird.families)
Format
The data are stored as an object of class "phylo"
which
structure is described in the help page of the function
read.tree
.
Source
Sibley, C. G. and Ahlquist, J. E. (1990) Phylogeny and classification of birds: a study in molecular evolution. New Haven: Yale University Press.
See Also
Examples
data(bird.families)
op <- par(cex = 0.3)
plot(bird.families)
par(op)