Tab. 2 in Is coexistence between non-native and native Erythrinidae species mediated by niche differentiation or environmental filtering? A case study in the upper Paraná River floodplain

Tab. 2. Pearson’s correlation coefficients (r) obtained among the ecomorphological indices for axes 1 and 3 of the principal components analysis (PCA) applied to the correlation matrix formed by 19 indices describing nonnative (H. mbigua and H. unitaeniatus) and native (Hoplias sp. B and H. cf. malabaricus) Erythrinidae species. At the lower level, the eigenvalues predicted by the broken-stick model and the proportions of the accumulated and explained variability are described. The indices with higher correlation values (in bold) were selected for interpretation. Ecomorphological indicesPCA axesr PC 1r PC 3Aspect ratio of anal fin-0.32-0.15Aspect ratio of caudal fin-0.32-0.06Aspect ratio of pectoral fin-0.27-0.20Aspect ratio of pelvic fin-0.31-0.05Compression index-0.080.26Compression index of caudal peduncle-0.250.31Depression index0.230.12Eye position0.28-0.14Relative area of dorsal fin0.320.23Relative area of eye0.300.22Relative height of anal fin0.12-0.34Relative height of body-0.020.38Relative height of caudal peduncle-0.25-0.14Relative height of dorsal fin0.16-0.25Relative height of head-0.250.07Relative length of caudal peduncle-0.070.25Relative length of head-0.010.34Relative width of caudal peduncle0.17-0.29Relative width of head-0.170.14Predicted eigenvalue: broken-stick3.552.05Eigenvalue5.322.20Explained variability (%)28.0111.56Accumulated variability (%)28.0139.56