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Fig. 1 | Fire Ecology

Fig. 1

From: Fuel dynamics after a bark beetle outbreak impacts experimental fuel treatments

Fig. 1

Conceptual diagram of mediation analysis testing the effect of fuel treatment (versus control) on fuel and crown fire potential as mediated by mountain pine beetle outbreak in the northern Rocky Mountains’ Fire and Fire Surrogate Study, 2002 to 2016. Upper panel illustrates overall conceptual framework, with the direct effect as the solid arrow and the indirect effect represented by the dashed-arrow pathway. As an example, the lower panel illustrates regression coefficients linking treatment (Burn-only, Thin-only, Thin+Burn) to canopy base height (CBH2016) with the number of trees killed by mountain pine beetles (n killed) representing outbreak severity.

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