Document ID: chunk:federal_register_of_legislation:F2022L00195:reg:3:p8
Version: federal_register_of_legislation:F2022L00195
Segment Type: reg
Provision Reference: reg 3 (pt 8/11)
Character Range: 34962–37983

to supplement the diet throughout the year or may support dens within live emergents near the rainforest edge. In some situations, this category may provide food resources at certain times that are crucial for survival, especially for subpopulations living in habitat that is highly fragmented due to clearing. The invasion of these habitats by rainforest species is so far advanced that their control by fire is difficult or impossible. Efforts must be made to maintain, consolidate and/or link this habitat with OF habitat. Emergents are classified as habitat dominated by unsuitable species but that contains a minor element of suitable species (for example, rainforest with Corymbia torelliana emergents that are utilised by the Mahogany Glider).
Poorly known (PK)       These are other areas of native vegetation within which no suitable food plant species are thought to be present. These areas include mangroves, rainforest without emergent sclerophyll species, and treeless vegetation such as grasslands and sedgelands. These communities may contain resources used by the glider, but their nature and significance are currently unknown. These areas are treated as non-habitat for the glider and were excluded from further analysis.

Note: Adapted from Jackson et al. (2011).
Map 1 Current distribution of Mahogany Glider habitat
Note: Areas that are not marked in the legend, and within the distribution limit, contain cleared land or habitat types that are not used by Mahogany Gliders.
Note: Adapted from Jackson et al. (2011).
Map 2 Historic distribution of Mahogany Glider habitat before broadscale clearing
Areas that are not marked in the legend, and within the distribution limit, contain cleared land or habitat types that are not used by Mahogany Gliders.
Note: Adapted from Jackson et al. (2011).

3.6                 Habitat critical to survival
The key threats to the Mahogany Glider associated with habitat loss and the increasing fragmentation of the remaining habitat strongly indicate that all available habitat should be considered critical to its survival (see Map 2). This includes 'Essential Habitat' as defined under the Queensland Vegetation Management Act 1999 (VMA) and all other vegetation, both remnant and non-remnant located within corridors linking 'Essential Habitat'.
Limited observations suggest the Mahogany Glider can live within fragmented habitat as long as it is sufficiently wide (about 60 m) and contains sufficient number of food trees to provide a year-round supply of food (Jackson, 2000b). Creeklines may also be useful as they often include a relatively denser population of tree species, including Corymbia intermedia, C. tessellaris, Eucalyptus tereticornis, Lophostemon suaveolens, Melaleuca dealbata, and M. leucadendra. Despite this food availability within riparian corridors there are a number of disadvantages that include:
    * The occurrence and spread of rainforest resulting in medium to long-term loss of habitat.
    * Potentially higher predation due to