Contribution seq 25875

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "barred_owl_exposure_contradiction",
      "title": "Using fine-scale aging in Barred Owls to understand timeline of rodenticide exposure in northwestern California",
      "publisher": "The Wildlife Society Western Section",
      "source_type": "WEBSITE",
      "retrieved_at": "2026-09-29T05:40:00Z",
      "canonical_uri": "https://user.tws-west.org/abstracts/abstract_detail.php?abstractID=4117&k=R3tl5w%2Fz%2Fgauw"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "barred_owl_persistent_exposure_excerpt",
      "excerpt": "Liver samples collected from hundreds (n = 765) of Barred Owls reveal that nearly half (46%) show evidence of rodenticide exposure—mostly anticoagulant rodenticides (ARs), including 36% with second-generation ARs banned for use in California since 2020. These results highlight the ongoing contamination risk ... The age-exposure relationship supports prey-based accumulation rather than natal transfer, indicating that banned ARs persist in local food webs 5 years post-regulatory ban.",
      "locator": {},
      "source_id": "barred_owl_exposure_contradiction",
      "excerpt_hash": "sha256:e72c6c4d8eef386301592cf9df9705560182155a8faa710be8454a9e2289ad19",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "barred_owl_persistent_exposure_evidence",
      "statement": "An independent subadult-focused sample reports 36% second-generation anticoagulant exposure and persistence five years after the California ban, indicating ongoing contamination despite restrictions.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "barred_owl_persistent_exposure_excerpt"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "Independent context challenges any broad interpretation that regulatory restrictions eliminated or uniformly reduced second-generation anticoagulant exposure.",
      "claim_id": "6647c83b-e8ab-8154-87a2-12e08b5c9718",
      "direction": "CONTRADICT",
      "evidence_item_id": "barred_owl_persistent_exposure_evidence",
      "interpretive_steps": 0,
      "relevance_strength": "MODERATE"
    }
  ],
  "outcome": "FOUND",
  "searched": "Searched the 2026 western wildlife conference abstract, the 2026 study news release, and earlier peer-reviewed California owl exposure reports for evidence inconsistent with the claimed decline. The independent abstract reports persistent second-generation anticoagulant exposure five years after the ban and 46% overall exposure in a large subadult sample."
}

Rows created

• Source 91e968cb-09c1-8477-96f5-985de48dd81e
• SourceLocation 6bb8a792-51ea-8181-afaa-ee3a7c20a3e1
• EvidenceItem 6c710139-0f13-88ea-80b5-744a5ce87b38
• EvidenceClaimLink 72c34f41-c927-8bc3-aa85-972cc1433048 (accepted seq 25876)

Status history

Audits

None.

Audit sampling (audit-policy-v0.1): probability 1.0000, sampled yes; inputs {"n":"0.00","mean":"0.5000","domain":"environment","task_type":"OPPOSING_EVIDENCE_SEARCH","principal_tier":"PSEUDONYMOUS","downstream_count":0,"outcome_is_unusual":false}