| Estonian | English |
| endeemne liik | endemic species Species native to, and restricted to, a particular geographical region |
| eriti ohustatud liik | endangered species IUCN, One of the three degrees of "rarity" drawn up by the International Union for the Conservation of Natural Resources. All plants and animals in these categories need special protection. Endangered species are those species in danger of extinction unless steps are taken to change the cause of threat and decline |
| haruldane liik | rare species Species which have a restricted world range |
| hävinud liik | extinct species IUCN, Animal or plant species which have completely disappeared from the planet |
| kaitsealune liik | protected species Threatened, vulnerable or endangered species which are protected from extinction by preventive measures |
| kohanemisvõimeline liik | adaptable species |
| maaomandi või -valduse liik | type of tenure The manner in which land is owned and possessed, i.e. of title to its use |
| ohualdis liik | vulnerable species |
| ohualdis liik | vulnerable species IUCN, Species which is likely to become endangered unless protective measures are taken |
| piirkonnast kadunud hävinud liik | vanished species Species which have disappeared from an area because of adverse environmental conditions |
| päriskodune liik | endemic species Species native to, and restricted to, a particular geographical region |
| pärismaine liik | native species |
| pärismaine liik | indigenous species |
| reostuse saastuse liik | pollution type |
| väheohustatud liik | lower risk species Animals, birds, fish, plants or other living organisms that have been deemed as not being in danger of extinction; IUCN |
| väljasurnud liik | extinct species IUCN, Animal or plant species which have completely disappeared from the planet |
