Fig. 2: Piecewise structural equation modeling (SEM) for sessile invertebrate cover and species richness.
From: The Blob marine heatwave transforms California kelp forest ecosystems

Arrows indicate directionality of effects on (a) invertebrate cover and (b) species richness. Red arrows show negative relationships; black arrows show positive relationships. R2 values are conditional R2. Arrow widths are proportional to effect sizes as measured by standardized regression coefficients (shown next to arrows). ***p < 0.001, **p < 0.01, *p < 0.05. Insignificant pathways are not included.