{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T05:47:46Z",
    "providers": [
      "Claude"
    ],
    "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
    "pass": 2,
    "wave": 2,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-05T23:50:00Z",
      "ingestedAt": "2026-10-05T20:54:12+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
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      "version": "1.0",
      "at": "2026-10-06T19:51:59+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q3738459",
    "registryId": "vr.tr.relative-species-abundance",
    "name": "relative species abundance",
    "version": "0.2.0-wave.2",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "XCT.REL"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q3738459/",
  "model": {
    "registry_id": "vr.tr.relative-species-abundance",
    "name": "relative species abundance",
    "purpose": "Let an agent explain relative species abundance and how it is measured and modelled, describe its patterns and their explanations with attribution, support calculating diversity indices, and support ecology learning.",
    "definition": "The proportion of individuals or biomass in a community that belongs to each species, describing how common or rare species are relative to one another, typically showing a few abundant and many rare species, summarised by rank-abundance curves and models such as log-series, log-normal and neutral distributions; relative species abundance is a core descriptor of community structure in ecology and underlies diversity indices and conservation assessment.",
    "what_it_is_for": "Proportions of species in a community.",
    "affordances": [
      "explain the concept",
      "describe patterns and models",
      "support calculations",
      "support learning"
    ],
    "distinguishing_features": [
      "Relative proportions",
      "Rank-abundance curves",
      "Models of distribution",
      "Basis of diversity indices"
    ],
    "appearance": "Not physical; a distribution.",
    "visual_identification": [
      "Proportion of each species in a community",
      "Few common, many rare species",
      "Species richness counts species; absolute abundance counts individuals"
    ],
    "physical_properties": [],
    "families_and_kinds": [
      "relative abundance by individuals",
      "relative abundance by biomass",
      "rank-abundance curves",
      "log-series and log-normal models",
      "neutral theory models"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "abundance",
        "why": "category"
      },
      {
        "relation": "is related to",
        "target": "natural region",
        "why": "communities compared across regions"
      },
      {
        "relation": "is related to",
        "target": "biological selection",
        "why": "processes shaping abundance"
      },
      {
        "relation": "is related to",
        "target": "nature conservation",
        "why": "assessment of communities"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "Ecological survey standards",
      "Biodiversity monitoring protocols",
      "No regulation of the concept"
    ],
    "failure_modes_and_hazards": [
      "Sampling bias",
      "Overinterpreting model fits",
      "Confusing relative and absolute abundance"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Explain relative species abundance and rank-abundance curves.",
        "Compute relative abundance from survey data, stating the sampling method.",
        "Describe models such as log-series and neutral theory with attribution."
      ],
      "must_not": [
        "Present relative abundance as absolute population size.",
        "Overinterpret a model fit as proof of a mechanism.",
        "Ignore sampling bias in survey data.",
        "Publish locations of rare species in ways that expose them to collectors."
      ],
      "requires_human": [
        "Using abundance data in conservation or land-use decisions."
      ]
    },
    "ethics": {
      "considerations": [
        "Rare species can be overlooked by misused statistics.",
        "Publishing locations of rare species can harm them."
      ],
      "affected_parties": [
        "Rare species",
        "Ecologists",
        "Conservation planners"
      ]
    },
    "owners": {
      "steward": "Nobody: an ecological measure held in common.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q3738459: relative species abundance",
      "url": "https://www.wikidata.org/wiki/Q3738459",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Relative species abundance",
      "url": "https://en.wikipedia.org/wiki/Relative_species_abundance",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "understand",
        "name": "Understand",
        "description": "What relative abundance is.",
        "rationale": "Ecology.",
        "layers": [
          {
            "id": "concept",
            "name": "Concept",
            "description": "Concept and patterns.",
            "findings": [
              {
                "id": "concept-finding",
                "name": "Concept",
                "description": "Concept.",
                "questions": [
                  {
                    "text": "What is relative species abundance, and why do most communities show few common and many rare species?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which community or measure is meant?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "models",
            "name": "Models",
            "description": "Models.",
            "findings": [
              {
                "id": "models-finding",
                "name": "Models",
                "description": "Models.",
                "questions": [
                  {
                    "text": "What do log-series, log-normal and neutral models propose, and how do they compare, with positions attributed?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which findings are contested?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "measure",
        "name": "Measure",
        "description": "Measurement and analysis.",
        "rationale": "Practice.",
        "layers": [
          {
            "id": "sampling",
            "name": "Sampling",
            "description": "Sampling.",
            "findings": [
              {
                "id": "sampling-finding",
                "name": "Sampling",
                "description": "Sampling.",
                "questions": [
                  {
                    "text": "How is relative abundance sampled and estimated in the field, and what biases arise?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Which entry fits ecological sampling?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "indices",
            "name": "Indices",
            "description": "Diversity indices.",
            "findings": [
              {
                "id": "indices-finding",
                "name": "Indices",
                "description": "Indices.",
                "questions": [
                  {
                    "text": "How are diversity and evenness indices calculated from relative abundances?",
                    "kind": "action"
                  },
                  {
                    "text": "Which entry fits biodiversity indices?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "apply",
        "name": "Apply",
        "description": "Applications.",
        "rationale": "Applications.",
        "layers": [
          {
            "id": "conservation",
            "name": "Conservation",
            "description": "Conservation.",
            "findings": [
              {
                "id": "conservation-finding",
                "name": "Conservation",
                "description": "Conservation.",
                "questions": [
                  {
                    "text": "How is relative abundance used in conservation assessment and monitoring change?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits biodiversity monitoring?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "theory",
            "name": "Theory",
            "description": "Community ecology.",
            "findings": [
              {
                "id": "theory-finding",
                "name": "Theory",
                "description": "Theory.",
                "questions": [
                  {
                    "text": "What do abundance patterns reveal about competition, niches and neutral processes?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits community ecology?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "learn",
        "name": "Learn",
        "description": "History and teaching.",
        "rationale": "Education.",
        "layers": [
          {
            "id": "history",
            "name": "History",
            "description": "History.",
            "findings": [
              {
                "id": "history-finding",
                "name": "History",
                "description": "History.",
                "questions": [
                  {
                    "text": "How did the study of abundance distributions develop from Fisher and Preston to neutral theory?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which references are standard?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "teach",
            "name": "Teach",
            "description": "Teaching.",
            "findings": [
              {
                "id": "teach-finding",
                "name": "Teach",
                "description": "Teaching.",
                "questions": [
                  {
                    "text": "How can relative abundance be taught with field data?",
                    "kind": "action"
                  },
                  {
                    "text": "Which misconceptions arise?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should diversity indices be a separate entry?",
    "How should monitoring datasets be linked?",
    "How should model literature be linked?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}