Between 1990-1993, the native vegetation communities in the bushland of Hornsby Shire were identified and mapped. The present study, carried out between 2006 and 2008, updates the classification and mapping of the communities. The survey area included all of the Hornsby LGA, from Eastwood to Brooklyn to Wisemans Ferry, excluding Marramarra NP, Muogamarra NR, Long Island NR, and Ku-ring-gai Chase NP east of the Sydney-Newcastle Freeway.

In the initial study, the classification of the plant communities was based on the floristic composition of the tallest vegetation layer (usually the tree species composition). The assessment was subjective but based on species data from a total of 404 sample sites. An additional 209 sites were examined for the updated study. The classification has been refined to include 8 EECs, two rainforest communities (instead of one in the original classification), and recognition of the distinctive vegetation of Dangar Island as a separate community. VIS_ID 4471

Please note the related datasets: 1. Hornsby Local Government Area Threatened Ecological Communities, 2008. VIS_ID 4470 2. Hornsby Local Government Area Remnant Trees, 2008. VIS_ID 4472