Conservation Status
Likelihood of Occurrence
Significant Residual Impact Not Significant Not Significant Not Significant
Matter
NC Act 1
EPBC Act 2
NT
NL NL NL
Possible Possible Possible
Bertya pedicellata
E
Capparis humistrata
NT
Cerbera dumicola
V
V
Likely
Not Significant
Samadera bidwillii
Regulated Vegetation – Category B ‘Of Concern’ Regional Ecosystem
N/A
N/A
Known
Significant
All the updated Impact assessments are provided in the following sections:
4.1.Cycas megacarpa Cycas megacarpa is listed as endangered under the EPBC Act and NC Act.
Wulguru Technical Services Pty Ltd – Heritage Minerals Upper Mundic Gully TSF – Fauna Survey Assessment Report 41 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. This may explain the observed potential decline of the population within the project area, as there is circumstantial evidence to suggest that seedlings/juveniles may disappear from populations during drought, and that drought may affect the coning cycles of some species, (Queensland Herbarium, 2007). C. megacarpa is endemic to south-east Queensland. The Australasian Virtual Herbarium has 200 records of C. megacarpa which range from as far south as Goomeri (60 km west of Gympie) to north of Rockhampton with the furthest record 42 km northwest of Rockhampton (AVH, 2025). This distribution aligns with Queensland Government’s potential habitat model for Cycas megacarpa found on the species’ profile (DETSI, 2025) and the distribution mapped under the SPRAT database (DCCEEW, 2025). C. megacarpa occurs in in woodland, open woodland and forests with a grassy understorey and rocky substrates to clay/loam soils (DCCEEW, 2025), with some observations of the species growing along rainforest margins. Typical habitat for the species is dominated by Corymbia citriodora , Corymbia erythrophloia , Eucalyptus melanophloia and Lophestemon confertus . However, the species has been recorded in a range of habitats and REs not with previously mentioned species included (DCCEEW, 2025). C. megacarpa was confirmed present within the project area during ecological surveys. A population survey was conducted which involved transversing all areas within which C. megacarpa was confirmed. In total 95 individuals of C. megacarpa were confirmed during field surveys, of which 46 occur within the project area. Individuals ranged in height from 0.3-5.5 m tall, with multiple individuals noted with fruit. Health varied across the population. Some individuals presented healthy foliage and new growth, while others presented signs of chlorosis (yellowing) and/or insect herbivory. Multiple dead trunks believed to be C. megacarpa were noted amongst live individuals. Dead trunks were noted at a higher frequency that juvenile individuals, this may suggest that the population is currently in decline. This is probable considering historical practices that have degraded and contaminated the habitat within which the population occurs. Approximately 32.33 ha of potentially suitable habitat was mapped for the species within the project area.
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