This document discusses using Bayesian modeling and uncertainty analysis to evaluate management actions for ecological systems. It presents the motivation for including uncertainty in forecasts to support policy. The document outlines a general Bayesian modeling approach and shows an example of using it to evaluate actions to reduce brucellosis transmission in Yellowstone bison. Vaccinating seropositive females each year was found to have the highest probability of meeting the goal of reducing transmission probability by half within five years, compared to other actions like culling or hunting. The document concludes by discussing limitations and benefits of the approach for informing management conversations.