{ "model": { "rank": 12063, "code": "thing-q866283", "model_id": "vr.tr.carrying-capacity", "name": "carrying capacity", "purpose": "Let an agent explain carrying capacity in ecology and its extensions, describe how it is estimated and used in management, present debates about human carrying capacity with attribution, and support learning.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.QTY", "industry": "", "version": "", "url": "/models/thing/q866283/", "tier": 2, "score": 40, "payload": { "layer": "wikidata", "aliases": [], "aliasCount": 0, "merged": 0, "knownIn": 40, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q866283", "url": "https://www.wikidata.org/wiki/Q866283", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T01:28:50Z", "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" }, "metaModel": { "id": "THING-Q866283", "registryId": "vr.tr.carrying-capacity", "name": "carrying capacity", "version": "0.2.0-wave.2", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QTY" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q866283/", "model": { "registry_id": "vr.tr.carrying-capacity", "name": "carrying capacity", "purpose": "Let an agent explain carrying capacity in ecology and its extensions, describe how it is estimated and used in management, present debates about human carrying capacity with attribution, and support learning.", "definition": "The maximum population of a species that an environment can sustain indefinitely given available food, water, habitat and other resources, used in ecology for populations of animals and plants, in wildlife and range management for stocking rates, and by extension for the number of people or level of activity a place, facility or system can support, as in tourism, transport and planetary carrying capacity; the concept is modelled in population ecology and debated when applied to human societies.", "what_it_is_for": "Sustainable maximum population or load.", "affordances": [ "explain the concept", "describe estimation and management use", "present debates", "support learning" ], "distinguishing_features": [ "Resource limits", "Logistic growth parameter", "Management use", "Contested human application" ], "appearance": "Not physical; a parameter in population models.", "visual_identification": [ "Maximum sustainable population", "Resource-limited", "Capacity in engineering is a maximum throughput rather than population" ], "physical_properties": [], "families_and_kinds": [ "ecological carrying capacity of populations", "range and wildlife stocking capacity", "tourism and recreational carrying capacity", "infrastructure and facility capacity", "human and planetary carrying capacity" ], "related_models": [ { "relation": "is a kind of", "target": "capacity", "why": "category" }, { "relation": "is related to", "target": "livestock", "why": "stocking rates" }, { "relation": "is related to", "target": "antelope", "why": "wildlife populations" }, { "relation": "is related to", "target": "parameter", "why": "a model parameter" } ], "identifiers": [], "standards_and_regulation": [ "Wildlife and range management guidelines", "Tourism planning standards", "No regulation of the concept" ], "failure_modes_and_hazards": [ "Treating carrying capacity as fixed", "Misapplying ecological concepts to human societies", "Overstocking and habitat degradation" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What carrying capacity is.", "rationale": "Ecology.", "layers": [ { "id": "concept", "name": "Concept", "description": "Concept and models.", "findings": [ { "id": "concept-finding", "name": "Concept", "description": "Concept.", "questions": [ { "text": "What is carrying capacity in population ecology, and how does it appear in the logistic growth model?", "kind": "definition" }, { "text": "Which sense of carrying capacity is meant here?", "kind": "boundary" } ] } ] }, { "id": "dynamics", "name": "Dynamics", "description": "Dynamics.", "findings": [ { "id": "dynamics-finding", "name": "Dynamics", "description": "Dynamics.", "questions": [ { "text": "Why does carrying capacity vary over time, and what happens when populations overshoot?", "kind": "definition" }, { "text": "Which entry fits population dynamics?", "kind": "action" } ] } ] } ] }, { "id": "apply", "name": "Apply", "description": "Estimation and management.", "rationale": "Practice.", "layers": [ { "id": "estimate", "name": "Estimate", "description": "Estimating capacity.", "findings": [ { "id": "estimate-finding", "name": "Estimate", "description": "Estimation.", "questions": [ { "text": "How is carrying capacity estimated for a population, range or habitat?", "kind": "provenance" }, { "text": "Which entry fits wildlife management?", "kind": "action" } ] } ] }, { "id": "tourism", "name": "Tourism", "description": "Tourism and facilities.", "findings": [ { "id": "tourism-finding", "name": "Tourism", "description": "Tourism.", "questions": [ { "text": "How is carrying capacity applied to tourism, parks and facilities?", "kind": "provenance" }, { "text": "Which entry fits sustainable tourism?", "kind": "action" } ] } ] } ] }, { "id": "debate", "name": "Debate", "description": "Human carrying capacity.", "rationale": "Attribution.", "layers": [ { "id": "human", "name": "Human", "description": "Human and planetary capacity.", "findings": [ { "id": "human-finding", "name": "Human", "description": "Human.", "questions": [ { "text": "What are the attributed positions in debates on human and planetary carrying capacity, from Malthus to planetary boundaries?", "kind": "provenance" }, { "text": "Is the presentation neutral and does it avoid deterministic claims?", "kind": "boundary" } ] } ] }, { "id": "critique", "name": "Critique", "description": "Critiques of the concept.", "findings": [ { "id": "critique-finding", "name": "Critique", "description": "Critique.", "questions": [ { "text": "What critiques do ecologists and social scientists make of carrying capacity as a concept?", "kind": "provenance" }, { "text": "Which findings are contested?", "kind": "boundary" } ] } ] } ] }, { "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 concept develop from shipping and range management to ecology?", "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 carrying capacity be taught with population models?", "kind": "action" }, { "text": "Which misconceptions arise?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should tourism carrying capacity be a separate entry?", "How should ecological models be linked?", "How should debates be attributed?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "unit, quantity or measure", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a carrying capacity, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain carrying capacity in ecology and its extensions, describe how it is estimated and used in management, present debates about human carrying capacity with attribution, and support learning.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Described in 40 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a carrying capacity, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Nothing to see: a unit is a convention. What is seen is an instrument reading in it." ], "relatedModels": [], "standing": "Described in 40 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one carrying capacity from another, and a carrying capacity from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a carrying capacity, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a carrying capacity, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a carrying capacity is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a carrying capacity, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a carrying capacity, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a carrying capacity is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a carrying capacity sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a carrying capacity, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a carrying capacity, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a carrying capacity is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a carrying capacity from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a carrying capacity, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a carrying capacity, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a carrying capacity is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a carrying capacity passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a carrying capacity between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a carrying capacity, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a carrying capacity, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a carrying capacity is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a carrying capacity, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a carrying capacity is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a carrying capacity, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a carrying capacity, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a carrying capacity is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definition-and-realisation", "name": "Definition, dimension and realisation", "description": "What carrying capacity is defined as and how it is realised in practice.", "rationale": "A unit is not the quantity it measures, and its definition has a history that older data still depends on.", "layers": [ { "id": "definition", "name": "Definition and dimension", "description": "The defining relation and the quantity it measures.", "findings": [ { "id": "definition-record", "name": "Definition, body and date", "description": "What defines it now, and what defined it before.", "questions": [ { "id": "definition-record-q01", "text": "How is carrying capacity defined, by which body, and since when?", "kind": "definition" }, { "id": "definition-record-q02", "text": "What was the previous definition, and what data still depends on it?", "kind": "provenance" } ] } ] }, { "id": "conversion", "name": "Conversion and compatibility", "description": "Relations to other units, exact or approximate.", "findings": [ { "id": "conversion-record", "name": "Conversions and their exactness", "description": "Factors, and whether each is exact by definition.", "questions": [ { "id": "conversion-record-q01", "text": "What conversions relate carrying capacity to other units, and which are exact by definition?", "kind": "measurement" }, { "id": "conversion-record-q02", "text": "Where does rounding a conversion change a decision, and how should that be recorded?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a carrying capacity came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a carrying capacity and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a carrying capacity, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a carrying capacity, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a carrying capacity is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a carrying capacity is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a carrying capacity, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a carrying capacity, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a carrying capacity is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 4, "layers": 8, "findings": 10, "questions": 28 } } } }