The GAMM predicted change in the proportion of Australian fur seals resting at the Kanowna Island study area in response to experimental boat approaches. Dashed lines represent 25-m approaches. Solid lines represent 75-m approaches. Triangles show approaches conducted in the morning (08:00–11:00) and circles show approaches conducted in the afternoon (13:00–16:00). The grey shading shows the period the boat stayed at either 25 m or 75 m. Tick lines on the x-axis show time points where observations were recorded.