EntityQ5333261· pop 7· linked from 234 articlesEcological thresholdSign in to savethe point at which a relatively small change in external conditions causes a rapid change in an ecosystemConnectionsprimary nutritional groupEntityecosystemEntityecological nicheEntityecologyEntityphotosynthesisEntitynatural environmentEntityArchaeaEntitymicroorganismEntityWayback MachineEntitybiodiversityEntitydigital object identifierEntityInternational Standard Serial NumberEntityparasitismEntityherbivoreEntitycarnivoreEntitybiogeographyEntitysymbiosisEntitypredationEntityfood chainEntityhabitatEntityCategoriesEcological economicsEcology terminology