Data from: Convergent evolution of phenotypic integration and its alignment with morphological diversification in Carribean Anolis ecomorphs

The adaptive landscape and the G-matrix are keys concepts for
understanding how quantitative characters evolve during adaptive
radiation. In particular, whether the adaptive landscape can drive
convergence of phenotypic integration (i.e., the pattern of phenotypic
variation and covariation summarized in the P-matrix) is not well studied.
We estimated and compared P for 19 morphological traits in eight species
of Caribbean Anolis lizards, finding that similarity in P among species
was not correlated with phylogenetic distance. However, greater similarity
in P among ecologically similar Anolis species (i.e., the trunk-ground
ecomorph) suggests the role of convergent natural selection. Despite this
convergence and relatively deep phylogenetic divergence, a large portion
of eigenstructure of P is retained among our 8 focal species. We also
analyzed P as an approximation of G to test for correspondence with the
pattern of phenotypic divergence in 21 Caribbean Anolis species. These
patterns of covariation were coincident, suggesting that either genetic
constraint has influenced the pattern of among-species divergence or,
alternatively, that the adaptive landscape has influenced both G and the
pattern of phenotypic divergence among species. We provide evidence for
convergent evolution of phenotypic integration for one class of Anolis
ecomorph, revealing yet another important dimension of evolutionary
convergence in this group.