Fig. 3: The relationship between the breakpoint date and the primary slow driver (grey) for varying levels of uncoupled noise in the primary slow driver.
From: Earlier collapse of Anthropocene ecosystems driven by multiple faster and noisier drivers
Where normalised primary slow driver (σ) values ≤ 0.333 signify ‘low noise’ (yellow), normalised σ values > 0.333 and ≤ 0.666 signify ‘mid noise’ (orange), and normalised σ values > 0.666 signify ‘high noise’ (red; section on Generation of future scenarios). The normalized primary driver trajectories are apportioned into three discrete ranges: low—0.25–0.35, mid—0.45–0.55 and high—0.65–0.75. a–d, Subplots: Chilika model outputs, primary slow driver—fisher population growth (a); Easter Island model outputs, primary slow driver—tree clearance (b); TRIFFID model outputs, primary slow driver—temperature change (c); Lake Phosphorus model outputs, primary slow driver—phosphorus input (d). Model timestep units and boxplot dimensions are the same as in Fig. 2; see Supplementary Table 3-1 for the number of model simulations underpinning each boxplot.
