Document ID: chunk:federal_register_of_legislation:F2023L01376:reg:2:p7
Version: federal_register_of_legislation:F2023L01376
Segment Type: reg
Provision Reference: reg 2 (pt 7/8)
Character Range: 34773–38094

typically scantily distributed within the vegetation matrix. In disturbed riparian zones, it tends to occur in a clumped pattern of distribution in small remnant patches of habitat that are prone to weed invasion.

Habitat critical to the survival of the species
Macadamia integrifolia is found in a range of vegetation communities comprising complex and simple notophyll vine forests, simple microphyll-notophyll vine forest with emergent Araucaria and Argyrodendron, and sclerophyll forests where rainforest is subdominant, and its presence is mediated by fire (Powell et al. 2010).
The Queensland Herbarium Regional Ecosystem Description Database (REDD) identifies four Regional Ecosystems (REs) 12.3.1, 12.8.3, 12.11.10 and 12.12.16 as habitat for M. integrifolia (see Table 3). Up to 66% of recorded populations of M. integrifolia occurring in remnant vegetation are located in these four RE types (Powell et al. 2010; Powell unpublished data). The majority of the other populations in remnant vegetation are found in riparian RE types or areas mapped as sclerophyll communities where rainforest is subdominant, and its presence is frequently fire mediated (Powell et al. 2014).
A substantial number of populations occur in areas not mapped as remnant vegetation; areas where stands of M. integrifolia have been preserved, but other native vegetation has been cleared.
Table 3. Habitat critical to survival of Macadamia integrifolia
Regional Ecosystem  Short Description                                                                           VMA Status1
12.3.1              Gallery rainforest (notophyll vine forest) on alluvial plains                               E
12.8.3              Complex notophyll vine forest on Cainozoic igneous rocks. Altitude <600 m                   LC
12.11.10            Notophyll vine forest +/- Araucaria cunninghamii on metamorphics +/- interbedded volcanics  LC
12.12.16            Notophyll vine forest on Mesozoic to Proterozoic igneous rocks                              LC

1 VMA Status: status under the Vegetation Management Act 1999 (Qld); E = Endangered, OC = Of Concern; LC = Least Concern

Priority populations
Populations of M. integrifolia have been prioritised using criteria including population size, proximity to other populations (based on pollen transfer distance) and occurrence within remnant vegetation. To account for mapping error, any population mapped as being within 50 m of remnant vegetation is assumed to be located within remnant vegetation.
Table 4. Priority populations of Macadamia integrifolia
Priority    Criteria
VERY HIGH   Populations with at least two neighbouring populations within 3 km AND within 50 m of remnant vegetation AND Population Class 26–49 or greater
            OR
            Populations where two Macadamia species are recorded as present
HIGH        Populations with at least two neighbours within 3 km AND within 50 m of remnant vegetation AND Population Class 11–26 or greater
            OR
            Populations with at least two neighbours within 3 km AND Population Class 26–49 or greater
            OR
            Populations within 50 m of remnant vegetation AND Population Class 26–49 or greater
MEDIUM      All other populations

The known population clusters of M. integrifolia throughout its distribution