Acoustic diversity reduction at Castlereagh

Interpretation

Soundscape index declined. Classifier confidence 0.62. Supports, does not replace, the bird-survey IntelligenceObject.

Effort

Recording duration comparable to 2019 reference window.

Recommended observation

Human validation of a stratified sample of clips.

Alternative explanations

• — recorder placement
• — wind/insect noise
• — classifier drift

Status path

Detected → Unverified → Under review → Corroborated → Escalated → Resolved / Rejected

Current: corroborated