In the Brigalow Belt Bioregion, greater gliders typically require between 4 and 20 den trees per individual
and are most commonly observed denning in Eucalyptus fibrosa , followed by E. moluccana and
Corymbia citriodora (Eyre et al., 2022). Within the project area, C. citriodora is present in RE 11.10.1.
Field surveys identified one hollow bearing Eucalypt in RE 11.10.4, featuring an opening approximately
10 cm in diameter and another hollow bearing C citriodora in the non-remnant area, featuring an
opening of around 15 cm in diameter. This hollow density falls far short of the threshold required to
support greater gliders. However, REs 11.10.1, 11.10.2, 11.10.3 11.10.4 within the project area do
support tree species associated with potentially suitable foraging habitat for greater gliders, including
Syncarpia glomulifera , C. trachyphloia , and C. citriodora (Eyre et al., 2022). While the area does not
contain sufficient hollow-bearing trees to support denning, it may still provide suitable foraging and
dispersal habitat. Therefore, the greater glider has the potential to occur within these REs for foraging
and dispersal across the project area. In total, 19.95 ha of potential habitat for the greater glider is
present within the project area. Habitat within the project area has been described as a mixture of
remnant and non-remnant vegetation.
During investigation of the Project area’s history, the majority of the potentially suitable habitat that was
identified within the project area was found to occur within a historically highly disturbed area. Prior to
mining activities occurring at the Mount Morgan Mine, the headwater of the Mundic Gully flowed north
to south before flowing in an easterly direction towards the Dee River. What should be the headwater
of the Upper Mundic Creek is now an ephemeral waterbody at the lowest topographical point of the
Upper Mundic Gully that drains through a stormwater diversion tunnel into Dam 8 located to the
northeast, and as such less water is likely available within the project area compared to prior to
disturbance. Due to the degraded nature of the project area, this habitat is likely less preferable than
intact habitat in the surrounding region.
Therefore, the Project is not anticipated to result in a significant impact on the greater glider.
Table 47. SRI assessment - greater glider ( Petauroides volans )
Significant Residual Impact criteria Lead to a long- term decrease in the size of a local population of the species;
Assessment
Unlikely
Ecological surveys did not identify a suitable density of potential breeding habitat within the project area. Whilst there is the potential for the project area to be used by greater gliders for foraging and/or dispersal, it is unlikely a population will occur within the project area that could be impacted. Additionally, to mitigate potential impacts to individuals, pre-clearance surveys will be conducted, with all activities supervised by qualified fauna spotter-catchers. As such, the project is considered unlikely to lead to a long-term decrease in the size of a local population of the species. Ecological surveys did not identify a suitable density of potential breeding habitat within the project area. Whilst there is the potential for the project area to be used by greater gliders for foraging and/or dispersal, it is unlikely a population will occur within the project area that could be impacted. As such, the Project is considered unlikely to reduce the extent of occurrence of the species.
Reduce the extent of occurrence of the species;
Unlikely
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Wulguru Technical Services Pty Ltd – Supporting Information to Amend an Environmental Authority
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