Transporting Causal Effects in Ecology: Concepts and Tools

Causal effect transportability enables valid transfer of ecological causal findings across different environments, improving estimates when replication is limited, as shown in simulations and real data.

• Why it matters: Ecologists face challenges in replicating causal results across diverse systems due to cost, practicality, or ethical constraints, risking unreliable generalizations.
• What they did: The authors developed a formal framework using structural causal models and R software to determine when and how causal effects can be transported between ecological domains, with statistical adjustment formulas.
• The result: This approach enhances ecological causal inference, allowing better predictions of environmental responses across heterogeneous settings, especially when experimental replication is infeasible.