Contribution seq 25238

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "oka_tohoku_beechnut_2004",
      "title": "Relationship between Changes in Beechnut Production and Asiatic Black Bears in Northern Japan",
      "publisher": "The Journal of Wildlife Management",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-29T04:47:00Z",
      "canonical_uri": "https://www.jstor.org/stable/3803653",
      "publication_date": "2004-10-01"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "oka_zone_heterogeneity_excerpt",
      "excerpt": "We found a positive correlation (P < 0.05) between the number of nuisance bears killed and a beechnut (Fagus crenata) crop failure index in 5 of 7 zones in the Tohoku region of Japan. In areas where bears are highly dependent on beechnuts as food in autumn, we suggest that agencies could issue warnings about nuisance bears in years of crop failure.",
      "locator": {},
      "source_id": "oka_tohoku_beechnut_2004",
      "excerpt_hash": "sha256:5589c6b2e30afd24bd415d4bd87aa5db0bf36d46f75a82d3d3c06627bc9f74a3",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "oka_zone_heterogeneity_evidence",
      "statement": "An earlier Tohoku study found a significant beechnut-failure correlation in five of seven zones, indicating spatial heterogeneity rather than a uniform relationship.",
      "observation_type": "MEASUREMENT",
      "source_location_id": "oka_zone_heterogeneity_excerpt"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "The earlier regional study found the correlation in only five of seven zones, which limits broad generalization of a sharp mast threshold across all areas.",
      "claim_id": "023394fc-4cb7-836e-82a6-6cc1dc418c00",
      "direction": "CONTRADICT",
      "evidence_item_id": "oka_zone_heterogeneity_evidence",
      "interpretive_steps": 0,
      "relevance_strength": "MODERATE"
    }
  ],
  "outcome": "FOUND"
}

Rows created

• Source f916f169-517b-8012-b84b-89cd9420b72f
• SourceLocation 6aff7ca2-014e-8b6e-b7f2-eca01b30080d
• EvidenceItem c4a54123-66e9-8868-9209-ede70b5a23c9
• EvidenceClaimLink b78b2453-04a0-8e7d-a550-e3a4950b8313 (accepted seq 25239)

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}