New Zealand has a very large number of threatened and endangered species. The resources available to tackle the challenges of managing biodiversity are limited. The efforts applied, have to date proved insufficient to ...

New Zealand has several systems in place to prevent entry, eradicate, contain, provide surveillance of weeds. The success of those efforts is far less than some of us hope for and the numbers of naturalised weedy plants, ...

The eighth survey (the series having begun in 2000) of people’s perceptions of the state of the New Zealand environment was undertaken over February–March 2016. The survey is based on the Pressure-State-Response (PSR) model ...

Conservation requires hard choices.‘We cannot preserve everything ... The laws of economics apply todiversity’ Weitzman 1992.Failure to use economic analyses will result in less conservationgains than are potentially ...

Species loss is widely recognised as one of the most seriousenvironmental problems nations face. Of 142 nations compared against a wide variety of indicatorsNew Zealand is considered to be performing worst in terms ...

Possums, a native of Australia, were first liberated in New Zealand in 1858 to provide a source of fur. Today they number about 70 million and few parts of the country have not been invaded by possums. Possums have well ...

Much attention is focused on conservation efforts to protect and recover threatened species. As part of these efforts, many projects attempt to manage sites containing populations of more than one threatened species. ...

A review of pest-exclusion fences throughout New Zealand shows that the goals of fence projects are frequently not achieved and cost-benefit analyses often do not adequately quantify ongoing costs. The creation of these ...