Fig. 6

Habitat suitability predicted from the gradient boosted model and spatial accuracy maps for whales in the Southeast Asia region (May–October). Shown is a continuous (0–1) relative habitat suitability; b thresholded suitable habitat (pink) and validated suitable habitat (red; suitable habitat restricted to areas with spatial AUC and, spatial Kappa > 0.4) overlaid with geomorphologic features [40], c spatial distribution of model accuracy (spatial Kappa) and d spatial distribution of model accuracy (spatial AUC). Black dotted contours represent the 200 m bathymetry (shelf break). There is a large overlap of validated (red) and thresholded (pink) suitable habitat across the region (b) thus the pink polygon is not fully visible