Conservation in New Zealand has a history associated with both Māori and Europeans. Both groups of people caused a loss of species and both altered their behaviour to a degree after realising their effect on indigenous flora and fauna.
New Zealand has fourteen national parks, thirty one marine reserves and many other protected areas for the conservation of biodiversity. The introduction of many invasive species is threatening the indigenous biodiversity since the geographical isolation of New Zealand led to the evolution of plants and animals that did not have traits to protect against predation. New Zealand has a high proportion of endemic species, so pest control is generally regarded as a high priority.
The New Zealand Department of Conservation administers approximately 30% of New Zealand's land, along with less than 1% of the country's marine environment, for conservation and recreational purposes. It has published lists, under the New Zealand Threat Classification System, of flora and fauna which is at risk or declining which are included in national and regional plans.
The Conservation Act 1987 is New Zealand's principal legislation concerning the conservation of indigenous biodiversity. The Act established the Department of Conservation, Fish and Game, and complements the National Parks Act 1980 and the Reserves Act 1977.