Figure 4

The two most influential interactions fitted by the boosted regression tree model. Left: Fitted values are plotted as a function of the change in monthly precipitation over 12 months (PREC_1mo_12mo) and the cumulative precipitation over the preceding 3 months (PREC_3mo). The plot shows higher levels of foraging when decreases compared with the previous year and cumulative amounts of rainfall remain below 200 mm in the preceding 3 months. Right: Fitted values plotted as a function of the minimum temperature anomaly of the preceding 9 months (ANOMtmn_9mo) and the change in the Eucalypt Chlorophyll a Reflectance Ratio over 3 months (ECARR_3mo). Here, highest fitted values correspond with low minimum temperature in the past 9 months and decrease in photosynthetic productivity over 3 months.