About bioregions

Bioregions capture the large-scale geophysical patterns across Australia. These patterns in the landscape are linked to animal and plant groupings and processes at the ecosystem scale, and provide a useful way of reporting on more complex patterns of biodiversity.

Bioregional approach to conservation

National Parks and Wildlife Service NSW has adopted a bioregional approach to conserving much of our biodiversity, in response to the need to work with large geographic scales and biological cycles to plan and achieve biodiversity conservation.

Planning for biodiversity at this scale recognises the significance of these natural processes and gives us the greatest opportunity to conserve biodiversity in sufficient numbers and distribution to maximise its chance of long-term survival.

Biodiversity is influenced by but does not recognise administrative boundaries, which is another reason to use a bioregional approach to assess all land across the region.

Areas protected for conservation


Subregions are the basis for determining the major regional ecosystems. Subregions have finer differences in geology, vegetation and other biophysical attributes within a bioregion. The subregions that make up each of the bioregions are useful tools in regional conservation planning and in the development of a conservation reserve system that, if it is to be representative of the natural environment, must contain viable areas of the major ecosystems of each natural region.