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| Subject | English | Norwegian Bokmål |
| environ. | bastardisation of fauna One of the possible consequences of the introduction of animal species in an area where they are not indigenous. Such translocation of species always involves an element of risk if not of serious danger. Newly arrived species may be highly competitive with or otherwise adversely affect native species and communities | faunaforringelse (etter artsinnføring) |
| environ. | fauna restoration The process of returning wildlife ecosystems and habitats to their original conditions | gjenoppretting av dyre- og planteliv |
| environ. | marine fauna Animals which live in the sea | marin fauna |
| environ. | wild fauna Not domesticated animals living independently of man | villfauna |