Skip to main content
. 2020 Feb 20;26(4):2181–2202. doi: 10.1111/gcb.14996

Table 2.

Model performance statistics generated using an ensemble modelling approach. The ability of the training data to predict the probability of presence was tested with different statistical metrics: area under the curve (AUC) of the receiver operating characteristic, kappa statistic, sensitivity (% true positives), specificity (% true negatives) and true skill statistic (TSS). Statistics were calculated using two thresholds: 10 percentile training presence logistic threshold (10th) and maximum sensitivity and specificity (MSS)

Group Species AUC Kappa Sensitivity Specificity TSS Thresholds
10th MSS 10th MSS 10th MSS 10th MSS 10th MSS
Scleractinian corals Lophelia pertusa 0.91 ± 0.08 0.51 ± 0.31 0.57 ± 0.25 0.90 0.88 ± 0.06 0.78 ± 0.18 0.85 ± 0.11 0.68 ± 0.18 0.72 ± 0.17 0.34 0.24
Madrepora oculata 0.92 ± 0.06 0.31 ± 0.22 0.41 ± 0.19 0.90 0.88 ± 0.09 0.77 ± 0.16 0.87 ± 0.07 0.66 ± 0.16 0.75 ± 0.14 0.31 0.20
Desmophyllum dianthus 0.95 ± 0.03 0.34 ± 0.14 0.39 ± 0.16 0.90 0.92 ± 0.07 0.85 ± 0.08 0.86 ± 0.09 0.74 ± 0.08 0.79 ± 0.08 0.33 0.22
Octocorals Acanthogorgia armata 0.92 ± 0.05 0.35 ± 0.29 0.43 ± 0.21 0.90 0.88 ± 0.06 0.77 ± 0.20 0.89 ± 0.07 0.66 ± 0.20 0.77 ± 0.12 0.26 0.18
Acanella arbuscula 0.88 ± 0.03 0.22 ± 0.20 0.49 ± 0.20 0.90 0.81 ± 0.07 0.60 ± 0.15 0.86 ± 0.10 0.50 ± 0.15 0.67 ± 0.10 0.32 0.19
Paragorgia arborea 0.95 ± 0.05 0.44 ± 0.18 0.50 ± 0.17 0.90 0.90 ± 0.06 0.86 ± 0.13 0.90 ± 0.09 0.76 ± 0.13 0.79 ± 0.12 0.36 0.23
Deep‐water fish Helicolenus dactylopterus 0.97 ± 0.03 0.81 ± 0.08 0.84 ± 0.08 0.90 0.96 ± 0.02 0.91 ± 0.08 0.88 ± 0.08 0.81 ± 0.08 0.84 ± 0.08 0.54 0.33
Sebastes mentella 0.94 ± 0.06 0.68 ± 0.22 0.67 ± 0.21 0.90 0.95 ± 0.03 0.85 ± 0.15 0.82 ± 0.15 0.75 ± 0.15 0.78 ± 0.13 0.63 0.50
Gadus morhua 0.94 ± 0.02 0.75 ± 0.01 0.79 ± 0.01 0.90 0.99 ± 0.01 0.86 ± 0.01 0.82 ± 0.02 0.76 ± 0.01 0.81 ± 0.01 0.74 0.60
Hippoglossoides platessoides 0.93 ± 0.01 0.75 ± 0.00 0.80 ± 0.03 0.90 0.97 ± 0.04 0.86 ± 0.00 0.84 ± 0.01 0.76 ± 0.00 0.81 ± 0.04 0.73 0.59
Reinhardtius hippoglossoides 0.87 ± 0.01 0.48 ± 0.05 0.52 ± 0.01 0.90 0.90 ± 0.08 0.68 ± 0.05 0.71 ± 0.06 0.58 ± 0.05 0.61 ± 0.02 0.61 0.54
Coryphaenoides rupestris 0.99 ± 0.01 0.88 ± 0.01 0.93 ± 0.03 0.90 0.97 ± 0.02 0.98 ± 0.01 0.96 ± 0.01 0.88 ± 0.01 0.93 ± 0.03 0.63 0.26