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Table 3 The relationship between depth skeletal element densities according to PGLS significance tests

From: Habitat influences skeletal morphology and density in the snailfishes (family Liparidae)

Density Minimum Depth Maximum Depth Collection Depth
df Coefficient p-value AIC df Coefficient p-value AIC df Coefficient p-value AIC
Vertebra 38 0.3390429 **0.0000 103.0 37 -0.1893747 0.1389 73.91 37 0.0433650 0.7516 117.9
Lower Jaw 38 0.1818685 **0.0001 57.47 37 -0.0336158 0.6948 45.32 37 0.0437742 0.5565 72.59
Disk Pterygiophore 20 -0.0706163 0.7052 48.64 20 -0.2065099 0.2467 47.27 19 -0.0884126 0.4296 47.14
Hypural Plate 15 -0.0435267 0.4954 17.39 15 0.0046979 0.9672 17.95 14 -0.0144411 0.8260 17.67
Otolith 11 -0.0815815 *0.0689 6.909 10 -0.1185474 0.5741 8.919 11 0.0596351 0.7592 11.06
  1. Specimen collection depth, species minimum depth, and species maximum depth (in meters) were tested independently. Total degrees of freedom (df) for each test are shown. Significant p-values below an alpha threshold of 0.05 are marked with two asterisks and bold type, those below the 0.1 alpha threshold are marked with a single asterisk and bold type. Akaike information criterion (AIC) values are reported for each model. The depth metric with the lowest AIC value for each bone appears in bold type