Data and analysis
The data used to describe the conservation status of each bioregion were provided from analysis undertaken by the State Conservation Monitoring Project (SCMP). Not all conservation mechanisms analysed are mutually exclusive, and there is some overlap. This means that figures cannot simply be aggregated to provide accurate protected area totals for all programs.
While areas and percentages for the majority of mechanisms are generally not accurate to two decimal places, we have included data to this level of accuracy to show the contribution made by small but important initiatives such as Wildlife Refuges, Voluntary Conservation Agreements and Property Agreements.
The area of each bioregion has been derived from IBRA version 5.1 and analysed. These areas may not perfectly match the areas of the bioregions calculated from the SCMP because of variations in grid size. 1km grid cells were used in the SCMP to calculate the area of landscapes and both vegetated and cleared areas of the bioregion.
The NSW Listing of Ecosystems was developed by the Conservation Assessment and Priorities Unit of the NPWS and Groundtruth Consulting as part of the NSW Biodiversity Strategy. The conservation status of the western bioregions was derived using the mapped landscape units resulting from the NSW Listing of Ecosystems project.
At the time of analysis, this landscape mapping (Mitchell in prep) was not complete for the east of the State, so an alternative landscape classification (NPWS in prep) was used as the basis for the statistics for the eastern bioregions. Further details on data sets and analysis can be obtained from the State Conservation Monitoring Project (NPWS in prep).
A map of the location of protected areas in each bioregion is contained in the chapter for that bioregion. It should be noted that these maps do not indicate the locations of Voluntary Conservation Agreements, Wildlife Refuges or Property Agreements in order to protect the privacy of the landholders involved.
Finally, figures provided in the conservation status section of each chapter apply to the NSW portion of the bioregions only. As the majority of bioregions in NSW extend across the borders of adjoining States, the data provided is insufficient to give a complete picture of the bioregions for the purposes of bioregional planning across State administrative boundaries.
We hope in the future to be able to incorporate a more complete and comprehensive analysis of the whole of each bioregion.
Page last updated: 27 February 2011