The purpose of this layer is to measure the probability of finding a tree species that a koala is known to use for food or shelter.

The statewide Koala Habitat Information Base (KHIB) has been developed as part of the NSW Koala Strategy. It delivers the best available state-wide spatial data on koala habitat, likelihood, koala preferred trees and koala sightings for NSW.

It will be an important resource to assist government agencies, local councils and private land holders with koala conservation decisions.

The Koala Tree Indices v1.0 is one dataset under the KHIB. These models predict spatially the probability of finding a tree species that a koala prefers for food or shelter. They are built off predictive (Boosted Regression) models of individual koala preferred tree species models, developed following a series of expert reviews. This surface is delivered as a set of nine regional models.

Each region's model is available for download below as a zipped 5m tif image readable in any spatial software package. An ArcGIS mxd is also supplied for suggested symbology.

All Koala Habitat Information Base datasets are available for download at the links below under 'Dataset relationship'.

For further information on the data layers and their development, please see the Koala Habitat Information Base Technical Guide.