Additional File 1.
Principal component analyses on raw data and phylogenetically independent contrasts of love-dart and reproductive morphology data. The independent contrasts are based on the raw data and the three alternative trees (see Methods), namely BI or ML with and without consideration of five cases of phylogenetic uncertainty. The ML tree topologies with and without phylogenetic uncertainty were identical. The table shows the eigenvectors for each variable in the different principal components (PC). These vectors are a measure for the weight of the variable in the PC. The eigenvalue and % variance are given for each PC. These values express how much of the total variance in the data is explained by that PC.
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Koene and Schulenburg BMC Evolutionary Biology 2005 5:25 doi:10.1186/1471-2148-5-25