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Table 1 The relationship between depth and skeletal element dimension according to PGLS significance tests

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

Linear Measurement Minimum Depth Maximum Depth Collection Depth
df Coefficient p-value AIC df Coefficient p-value AIC df Coefficient p-value AIC
Maxilla Length 35 -0.0172885 0.2025 -58.78 34 0.0222065 0.4061 -55.11 35 0.0200694 0.2731 -58.32
Maxilla Width 35 -0.0511695 0.1018 -0.898 34 -0.0106798 0.8589 0.302 35 0.0088989 0.8358 1.939
Premaxilla Ascending Process 35 -0.0222041 0.1755 -45.66 34 -0.0264503 0.3911 -45.40 35 -0.0048768 0.8273 -43.74
Premaxilla Length 35 -0.0085254 0.5687 -51.25 34 0.0427720 0.1133 -55.37 35 0.0252946 0.2043 -52.63
Dentary (dfl) 35 -0.0251871 **0.0432 -66.08 34 0.0162499 0.5072 -60.88 35 0.0122456 0.4772 -62.22
Dentary (vfl) 35 -0.0351275 *0.0707 -34.50 34 -0.0247770 0.5171 -30.60 35 -0.0138015 0.6060 -31.27
Anguloarticular Length 35 -0.0172143 0.2267 -55.30 34 -0.0044229 0.8711 -53.40 35 0.0088911 0.6458 -53.96
Neurocranium Length 35 -0.0197188 0.2555 -41.42 34 -0.1045617 **0.0007 -51.15 35 -0.0408159 *0.0760 -43.41
Suborbital Length 22 -0.0619564 **0.0010 -23.56 21 -0.1357821 **0.0002 -25.07 22 -0.0799057 **0.0002 -27.42
Suborbital Width 35 -0.0141958 0.3037 -57.27 34 0.0321298 0.2320 -55.12 35 0.0099389 0.5947 -56.44
Pectoral Girdle Length 35 -0.0024060 0.8177 -76.27 34 -0.0115989 0.5655 -74.01 35 0.0099849 0.4756 -76.76
Maximum Disk Width 21 -0.0025815 0.9245 -8.805 21 -0.0927278 *0.0572 -12.90 21 -0.0250137 0.4963 -9.320
  1. Specimen collection depth, species minimum depth, and species maximum depth (in meters) were tested independently. Dentary linear measurements are shown for dorsal fork length (dfl) and ventral fork length (vfl). 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. Estimated regression coefficient and Akaike information criteria (AIC) are reported for each model. The depth metric with the lowest AIC value for each bone appears in bold type