Our Vegetation & Flora
Native vegetation in the Northern Agricultural Region (NAR) has been characterised and mapped. The process involved identifying areas of native vegetation, defining the what plants make up plant communities, the geology/soil type and determining the dominant species. Where variation exist particularly relating to the dominant species recorded, this plant community was allocated a unique number to form part of the 168 vegetation associations mapped by Beard (1974 and 1981) in the NAR alone.
According to vegetation statistics available for Western Australia, approximately 56% of native vegetation has been cleared since European settlement and consequently only 43% of native vegetation remains in the NAR. Approximately 29% of the total number of vegetation associations recorded in the area have less than 30% of previous vegetation left and 9% with only 10% of the original vegetation left.
Within the NAR there are areas of natural bushland remaining on pastoral land to the east, and within DPaW tenure Nature Reserves and National Parks. There also still exists remnant vegetation on agricultural properties and within road reserves.
Visit Global Forest Watch to see how tree cover has changed at both a regional and global scale.
More than 4,196 native plant taxa have been recorded within the NAR. Approximately 821 (20%) are considered to be endemic to the region.
Approximately 20% of the recorded flora species have some level of protection. Currently, 138 taxa are rare and listed under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) and Wildlife Conservation Act 1954 (WC Act). A further 721 taxa are Department of Parks and Wildlife listed flora, with a total of 186 Priority 1 flora taxa, 198 Priority 2 flora taxa, 252 Priority 3 flora taxa and 85 Priority 4 flora taxa.
The flora of the NAR are susceptible to becoming endangered, threatened or extinct, as a result of a number of vulnerabilities which have been identified. See key vulnerabilities and management responses for further information.