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 ...

The long term sustainability of oil and natural gas supply in New Zealand will depend upon several factors, in particular the size and location of commercially exploitable resources, and the success of industry in ...

Protection of species and ecosystems from damage by introduced species typically involves use of taxpayer funds. Governments are increasingly concerned to ensure value for money is achieved, and request evaluation of these ...

A very large proportion of New Zealand's land area is reserved for conservation and recreation purposes. The Department of Conservation claims responsibility for the management of thirty percent of New Zealand land. Entry ...

Plant protection can encompass a number of activities. Weed control in cereals, competitor suppression for pine seedlings, weevil control in lucerne, control of fruit worm in tomatoes, black spot on apples, powdery mildew ...

Measuring consumer benefits associated with a policy or a project in a world where prices and outcomes are known with certainty is, at least in theory, straightforward. Changes in consumer surplus provide an appropriate ...

Although possums have been controlled by government agencies for more than 4 decades, there is little quantitative information available on the costs of controlling possums or the extent to which costs vary. A number of ...

The term biodiversity conservation can be applied to efforts to conserve genetic diversity, species diversity and ecosystem diversity. This paper focuses on efforts to conserve species and ecosystem diversity. Efforts to ...

The Auckland Regional Council (ARC) maintains and administers a network of countryside and conservation parks, as well as the Botanic Gardens and stadia at Mount Smart. The annual budget of the Auckland Regional Parks ...

Unit Day Values (UDV) have been widely used in North America to estimate the recreational and related benefits from parks and similar non-market resources. In essence they rely upon expert assessments based on previous ...