Fig. 5

Habitat suitability predicted from the gradient boosted model and spatial accuracy maps for whales displaying foraging behaviour in southern Australia (January–July, November–December). 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 AU and spatial Kappa > 0.4) overlaid with geomorphologic features [32], 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), and canyons are outlined in light grey. There is a large overlap of validated (red) and thresholded (pink) suitable habitat on the shelf and slope (b) thus the pink polygon is not fully visible