Appendix A

This file contains a processed sample of simulated data and the results from their analysis. The structure of the contents is described below. 1. Simulations For each functional group, the dataset includes 5 simulations per simulation scenario. Included in the section "simulated_parameters_real_values": - Nitd: Total number of daily roadkills at site i, month t, day d. - NitD: Total number of roadkills during the maximum number of days a carcass remains visible in the survey area at site i and month t. - NtD: Total number of roadkills across all survey sites combined in month t. Additionally, this section includes the true probability values of detection biases: - pL: Carcass location bias - pP: Carcass persistence bias - pOwalking: Carcass observation bias for walking surveys - pOcycling: Carcass observation bias for cycling surveys - pOdriving: Carcass observation bias for driving surveys 2. Bayesian Parameter Estimation Included in the section "Bayesian_parameter_estimation": - Posterior estimates for the following parameters: - totalN (NtD): Estimated total number of roadkills - pL - pP - pOwalking - pOcycling - pOdriving Each parameter includes: - Posterior mean - R̂ (R-hat) convergence diagnostic - Full posterior distribution