BioMetric and Threatened Species Profiles data sets were originally defined under the repealed Native Vegetation Act 2003 and the Environmental Outcomes Assessment Methodology.
Over-cleared vegetation types
Over-cleared vegetation types, otherwise known as BioMetric vegetation types (BVT), were a list of vegetation communities that occur within each NSW catchment management authority (CMA) region.
BioMetric Vegetation Types were retired from the VIS Vegetation Classification (previously known as VIS Classification) system on 21 August 2017, and were replaced with Plant Community Types (PCT). Reasons for this change include:
- to simplify the NSW vegetation classification system
- to facilitate development of quantitative plant community types and seamless state-wide plant community type mapping.
Vegetation condition benchmarks
Vegetation condition benchmarks transitioned to a new quantitatively derived benchmark system on 21 August 2017.
Threatened Species Profiles Database
The Threatened Species Profiles Database (TSPD) was a module in the BioNet-Atlas application until 21 August 2017. At this point, the name of this module was changed to Threatened Biodiversity Profiles data collection, and a number of core attributes used to calculate biodiversity credits were changed.
Over-cleared landscapes data remains unchanged following the introduction of the Biodiversity Conservation Act 2016 on 25 August 2017.
The over-cleared landscape values comprise the percentage-cleared estimate for each Mitchell Landscape. This data set is framed around a threshold of 70 per cent cleared per landscape. To obtain these estimates, the landscapes were intersected with a presence/absence layer of native vegetation in NSW.
The ecosystem classification used for this purpose (Mitchell Landscapes) is mapped at a 1:250,000 scale. In 2006, the NSW vegetation presence/absence mask was updated and intersected with the Mitchell Landscapes layer to produce revised percentage-cleared estimates for each Mitchell Landscape.
In 2008, the Mitchell Landscapes line work was systematically reviewed and revised where necessary, at 1:100 000 scale. Download Mitchell Landscapes Final Report.
Access to the most up to date, comprehensive and approved 'over-cleared landscapes' data is via BioNet Vegetation Classification dataset. Refer to the User Manual for instructions on exporting data from the application.
Access the latest NSW Mitchell Landscapes v3.1 layer, which is now maintained with over-cleared landscape values included.