A Appendix A: Downgrade criteria codes

Table A.1: Downgrade criteria codes used by the classification key.
Code Description
RUN_COVERAGE Run window coverage gaps (missed start or end of run).
VISITS Too few site visits for the claimed precision tier.
BREACH_BYPASS Bypass or breach risk at a counting site.
UPTIME Device outages or unobserved intervals.
REVIEW_QA Insufficient review of automated events.
VISIBILITY Poor visibility or lighting limits detection.
REACH_COVERAGE Intended reaches or segments not surveyed.
TIMING Visits not aligned with migration peak or plateau.
EFF_STD Inconsistent effort standardization.
XSEC_COVERAGE Partial cross-section coverage.
CLASSIFICATION Species or target classification error.
TRAP_EFF Unmeasured or uncertain trap efficiency.
DETECTABILITY Redd or carcass detectability bias.
DEVICE_CONFIG Device settings not documented or unstable.
ENV_COND Environmental conditions bias detection.
MR_ASSUMP Mark-recapture assumption violations.
INFILL_METHOD Interpolation or infilling not documented.
DOC Documentation or evidence missing.
PRECISION_ACCURACY Precision or accuracy weaker than candidate Type.
METHOD_UNKNOWN Survey or analysis method not identified.