EntityQ5422090· pop 6· linked from 208 articlesExtinction thresholdSign in to saveA numerical value of a variable characterizing a population or metapopulation, below which it is believed that population or metapopulation cannot surviveConnectionsextinctionEntityprotected areaEntityhabitat destructionEntityrestoration ecologyEntityelephantEntityspeciesEntityendangered speciesEntityWayback MachineEntityInternational Union for Conservation of NatureEntitybiodiversityEntitydigital object identifierEntityJurassicEntityIUCN Red ListEntityconservation statusEntityPlioceneEntitypopulationEntityenvironmental protectionEntityendemismEntityCretaceous-Paleogene mass extinctionEntityinvasive speciesEntityCategoriesConservation biologyExtinction