Hello Christy, My R package *convevol* may do exactly what you want it to do - this package can perform two different types of tests for convergence, both of which utilize phylogenies and can employ full data sets (of Procrustes coordinates or any other kind of continuous data). The two tests are described here:
Stayton, C.T. 2015. The definition, recognition, and interpretation of convergent evolution, and two new measures for quantifying and assessing the significance of convergence. Evolution 69:2140-2153. This is my first package, so if you encounter any trouble or maybe want to make any changes to customize the tests to your data or questions, please don't hesitate to contact me! Cheers, Tristan On Wed, Jan 27, 2016 at 12:40 AM, Christy Hipsley < chips...@museum.vic.gov.au> wrote: > Dear All, > > I'm working with a 3D GM data set and am looking for a specific test of > convergence that also accounts for phylogeny. After some searching it's > still not clear to me what is appropriate - so far I only see programs that > use reduced PC axes as continuous characters, but nothing that uses the > full Procrustes coordinates. I've applied a phylogenetic ANOVA in Geomorph > to at least show that after accounting for phylogeny, morphological shape > is significantly different among ecological groups (in this clade several > unrelated lineages occur in the same ecological niche). > > Does anyone know of a method for testing for convergence across a > phylogeny using the full shape data or is it always using PC scores? What > about using scores from a CVA instead, since they are specifically > addressing the question of differences among the a priori ecological groups > (and PCA does not)? Could those be mapped onto a phylogeny and modelled in > terms of BM vs OU, to test if that morphological change is adaptive? > > Any advice on these analyses would be appreciated. I'm aware of the > package Surface but I'm not convinced that is right for my system. > > My shape data has a significant phylogenetic signal and I suspect that one > ecological group in particular is highly convergent. > > > Thanks for any help! > > Christy > > School of BioSciences > University of Melbourne > Parkville VIC 3010, Australia > Email: chips...@unimelb.edu.au > > -- > MORPHMET may be accessed via its webpage at http://www.morphometrics.org > --- > You received this message because you are subscribed to the Google Groups > "MORPHMET" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to morphmet+unsubscr...@morphometrics.org. > -- C. Tristan Stayton Associate Professor of Biology Bucknell University Lewisburg, PA 17837 Office: 570-577-3272 -- MORPHMET may be accessed via its webpage at http://www.morphometrics.org --- You received this message because you are subscribed to the Google Groups "MORPHMET" group. To unsubscribe from this group and stop receiving emails from it, send an email to morphmet+unsubscr...@morphometrics.org.
