{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.extinction","code":"thing-q123509","url":"https://ver.cy/models/thing/q123509/","name":"extinction","alternateNames":["locally extinct species","biodiversity loss","Doomsday event","extinction event","male extinction","species eradication","evolutionary suicide","extermination","eradication of infectious diseases","extinction of Ammonoidea","Neanderthal extinction","decline in wild mammal populations"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Cross-cutting context","entryKind":"thing","plane":"XCT","domain":["XCT.STA"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Extinction is the termination of a taxon, such as a species or subspecies, through the death of its last living member anywhere; it occurs through natural processes and, at accelerated rates, through human activity, while the disappearance of a local population with survivors elsewhere is local extirpation rather than extinction in this sense; mass extinction events have punctuated Earth history, and current biodiversity loss is assessed by bodies such as the IUCN and IPBES.","purpose":"Let an agent explain extinction and its causes, report conservation status from authoritative sources, describe mass extinctions, and support conservation action without alarmism or dismissal.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["No living members of the taxon remain.","Extinction terminates the taxon globally rather than only removing a local population.","Extinction can result from natural processes and human activity.","Authorities assess evidence to determine extinction status."],"structure":{"bundles":[{"id":"status","name":"Status","description":"Is it extinct.","layers":[{"id":"check","name":"Check","description":"Conservation status.","findings":[{"id":"check-finding","name":"Check","description":"Conservation status.","questions":[{"text":"What is the status of this species, according to the IUCN Red List?","kind":"provenance"},{"text":"When was it last recorded?","kind":"provenance"}]}]},{"id":"scope","name":"Scope","description":"Global or local.","findings":[{"id":"scope-finding","name":"Scope","description":"Scope.","questions":[{"text":"Is the extinction global, local or in the wild only?","kind":"boundary"},{"text":"Are there captive populations?","kind":"provenance"}]}]}]},{"id":"causes","name":"Causes","description":"Why species die out.","layers":[{"id":"drivers","name":"Drivers","description":"Main drivers.","findings":[{"id":"drivers-finding","name":"Drivers","description":"Drivers.","questions":[{"text":"What drove this species decline, according to assessments?","kind":"provenance"},{"text":"Which drivers dominate globally, according to IPBES?","kind":"provenance"}]}]},{"id":"rates","name":"Rates","description":"Extinction rates.","findings":[{"id":"rates-finding","name":"Rates","description":"Rates.","questions":[{"text":"How do current extinction rates compare with background rates, according to research?","kind":"measurement"},{"text":"How uncertain are the estimates?","kind":"boundary"}]}]}]},{"id":"history","name":"History","description":"Mass extinctions.","layers":[{"id":"events","name":"Events","description":"The big five.","findings":[{"id":"events-finding","name":"Events","description":"Mass extinction events.","questions":[{"text":"What were the major mass extinction events and their causes, according to geologists?","kind":"provenance"},{"text":"Is a sixth mass extinction under way, and who argues so?","kind":"provenance"}]}]},{"id":"recovery","name":"Recovery","description":"After extinction.","findings":[{"id":"recovery-finding","name":"Recovery","description":"Recovery.","questions":[{"text":"How did life recover after past mass extinctions?","kind":"provenance"},{"text":"Over what timescales?","kind":"measurement"}]}]}]},{"id":"act","name":"Act","description":"Conservation.","layers":[{"id":"actions","name":"Actions","description":"What helps.","findings":[{"id":"actions-finding","name":"Actions","description":"Actions.","questions":[{"text":"Which conservation actions have prevented extinctions, according to evidence?","kind":"provenance"},{"text":"How can individuals contribute?","kind":"action"}]}]},{"id":"debates","name":"Debates","description":"De-extinction and priorities.","findings":[{"id":"debates-finding","name":"Debates","description":"Debates.","questions":[{"text":"What are the arguments about de-extinction and conservation priorities, attributed to their proponents?","kind":"provenance"},{"text":"Is the description balanced?","kind":"boundary"}]}]}]}]},"agentConduct":{"may":["Report extinction status from recognized assessments and cite the assessment date.","Monitor and record evidence of surviving populations for the responsible bodies."],"mustNot":["Declare a species extinct or recovered without an authoritative assessment.","Help trade in specimens of extinct or critically endangered species.","Encourage collecting from a population that may be the last of its kind.","Present de-extinction proposals as a reason to lower protection."],"requiresHuman":["Any intervention in a critically endangered population, including collection or captive breeding."]},"ethics":{"considerations":["Extinction is irreversible and takes with it the knowledge and cultures tied to a species.","Premature extinct declarations end the protection a species still needs."],"affectedParties":["The species and ecosystems concerned","Future generations","Indigenous and local communities"]},"owners":{"steward":"Nobody: wild species are protected by law; conservation bodies assess and record their status.","roles":[],"masterSystems":["IUCN Red List assessments","National protected species registers"]},"relations":[{"target":"Q105766453","type":"parent","note":"registry parent class"},{"target":"Q16672848","type":"parent","note":"registry parent class"},{"target":"Q4","type":"parent","note":"registry parent class"},{"target":"biological risk","type":"related","note":"category"},{"target":"IUCN Red List","type":"related","note":"authority"},{"target":"Carnivora","type":"related","note":"threatened species"},{"target":"algae","type":"related","note":"ecosystem base"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.extinction","Wikidata: Q123509 (https://www.wikidata.org/wiki/Q123509)"]},"properties":{"applicability":"not-applicable","items":[]},"recognition":{"applicability":"optional","items":["Declared by conservation bodies after searches","Local extinction differs from global","Extinct in the wild means survival only in captivity","Not physical; the absence of a species, documented in records."]},"capabilities":{"applicability":"required","items":["check whether a species is extinct or threatened","explain causes of extinction","describe mass extinction events","find conservation actions and organisations"]},"hazards":{"applicability":"required","items":["Premature declarations of extinction","Alarmist or dismissive framing","Confusing local and global extinction"]},"interfaces":{"applicability":"required","items":["IUCN Red List categories and criteria","Convention on Biological Diversity","CITES"]},"context":{"applicability":"required","items":["Understanding biodiversity loss and conservation.","global extinction","local extinction and extirpation","extinction in the wild","mass extinction events","functional extinction"]}},"sources":[{"title":"Wikidata item Q123509: extinction","url":"https://www.wikidata.org/wiki/Q123509","note":"identity and sense of the item"},{"title":"Wikipedia: Extinction","url":"https://en.wikipedia.org/wiki/Extinction","note":"general description of the item"}],"openQuestions":["Should mass extinctions be separate entries?","How should Red List data be linked?","How should de-extinction debates be attributed?"],"resources":{"spec":"/models/things/publications/thing-q123509/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q123509/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T15:46:30Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:25+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane XCT: no invented physical properties."},"score":1.0}}