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.
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.
It has published lists, under the New Zealand Threat Classification System, of flora and fauna that is at risk or declining, which are included in national and regional plans.
The black robin (Petroica traversi) was saved from the brink of extinction by a conservation effort led by Don Merton of the New Zealand Wildlife Service.
The brown teal (Anas chlorotis) recovery program has successfully improved the population status from endangered to near threatened on the IUCN Red List.
[4] Perhaps due to the government's initial control over REDD and the trade in carbon credits there was initially an increase in deforestation and it was not until private forestry owners gained access to the trading scheme and to carbon credits that the scheme started to produce reductions in deforestation.
One example is the Cromwell chafer beetle (Prodontria lewisi), which is on the IUCN Red List of critically endangered species.