Example dataset for the caper package
This is a comparative dataset on the evolution of shorebird egg size taken from Lislevand and Thomas (2006).
data(shorebird)
The datafile contains a phylogeny (shorebird.tree) of 71 shorebird species as a 'phylo' object from the ape library. The tip names are the binomial names of the species. The file also contains a data frame (shorebird.data) of 71 complete cases for those species. The data frame contains six variables:
The species binomial name.
The adult male mass body mass in grams.
The adult female mass body mass in grams.
The fresh egg mass in grams.
The mean clutch size
The mating system, as a three level factor: monogamous (MO), polygynous (PO) or polyandrous (PA).
Lislevand, T and Thomas, G. H. (2006) Limited male incubation ability and the evolution of egg size in shorebirds. Biology Letters 2, 206 - 208
crunch, pgls
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