The Georges River Biodiversity Study comprises four main components, the mapping of vegetation communities within the catchment, habitat modelling for priority fauna and flora species and a conservation assessment to identify areas of likely high biodiversity value. The area of extant native vegetation was estimated for the Cumberland Plain using aerial photograph interpretation (API). Aerial photographs flown between November 1997 and March 1998 were interpreted at a scale of 1:16000 using a stereoscope. Remnants were classified into 6 classes according to remnant size and the density of Eucalyptus tree cover. The floristic composition of the overstorey was estimated for Classes A, B and C. Class C polygons included remnants with a non-Eucalyptus tree stratum and remnants with no tree stratum (eg shrublands). Descriptions of the understorey were mainly qualitative (eg presence/absence of shrubs, weeds, mesic species or vines), but dominance by particular genera was noted where possible (eg Casuarina, Melaleuca, Olea). Class B polygons of area less than 5 ha were mapped as class TX (scattered trees). Areas of scattered trees where agricultural activities were evident (eg heavily grazed areas, mustering yards, cropped land) were mapped as TXR. Areas of scattered trees with building structures present were mapped as TXU. VIS_ID 4166

The estuarine vegetation of the lower Georges River was mapped using a combination of air photo interpretation and field survey techniques, thereby updating the maps of West et al. (1985) and Watford and Williams (1998). The new map extends the upstream coverage of wetlands identified by West et al. (1985) to Sylvania Waters, up the Woronora River and up the Georges River from Milperra to the Liverpool Weir. As a result, a uniform map of the type and distribution of estuarine macrophytes for the whole of the Georges River and the Kurnell peninsula now exists. Eight vegetative complexes have been described and located. A complex is considered to be a group of communities, and saltmarsh, for example, contains several recognisable communities. VIS_ID 4135

Vegetation associations of the Gwydir Watercourse were mapped from 1:50,000 scale colour aerial photographs taken during the period 26 August 2005 – 10 October 2005. VIS_ID 3921

Vegetation map digitised from Porteners, M.F. (1998). The composition and extent of the present vegetation in Weetalibah Nature Reserve is described and mapped at 1:50 000 scale from quadrat samples, field traverses and aerial photograph interpretation. Three vegetation communities are described and 125 species (127 taxa) of vascular plants recorded from 38 families, several of which are at their north-western geographical limit or regionally restricted. One species is listed under Schedule 2 of the 1995 NSW Threatened Species Conservation Act." VIS_ID 1014

The composition and extent of the present vegetation within Ginghet Nature Reserve (former property Wyninebah) is described and mapped by Porteners (2010). Twenty-five quadrat-based sites were sampled, with intensive field traverses, opportunistic sampling and aerial photograph interpretation. The survey sites were selected using stratified random sampling with replication where possible within the attribute class. The sites were distributed primarily to reflect the geomorphological gradients and soil changes across the study area, and to a lesser extent the structural variation of the vegetation. The data were then analysed using PATN multivariate analysis and identified five vegetation communities. 136 taxa of vascular plants were recorded from 36 families, eight of which are considered to be regionally significant. At each site, all vascular plant species were recorded within 20 by 20 metre (0.04 hectare) quadrats, and assigned a cover abundance rating based on a modified Braun-Blanquet six-point scale (Poore 1955). Bryophytes were not included in the survey. Vegetation structure was described by measuring the height and canopy cover of the dominant species in each stratum. Physiographic data additional to those defined by the stratification were also recorded, including soil type, landform, fire history and disturbance. All sites were located using a GPS, photographed and nested from the south-west corner Vegetation communities were mapped using colour aerial photographs at approximately 1: 50 000 scale (runs dated 3rd April 2005). The air photos formed the basis of the vegetation map polygons, supplemented by various orthophoto, SPOT satellite and other GIS layers. The photos were interpreted stereoscopically for patterns of vegetation and geomorphology, and then matched to the vegetation site data via direct visual assignment of floristic group attributes on the remote imagery. A provisional vegetation map was drafted and the study area traversed, with particular sites investigated to confirm polygon labels and resolve vegetation boundaries. The final vegetation polygons were transferred and visually corrected (orthorectified) to the orthophoto map and coded, ready for digitising into the GIS. The final vegetation map was digitised by DECCW Scientific Services (Dubbo) using ArcGIS. VIS_ID 3975

The composition and extent of the present vegetation within Wongarbon Nature reserve is described and mapped. The existing plant community descriptions were classified into Plant Community Types. A total of 94.6 hectares were mapped and plant communities aligned. One quadrat-based site was sampled for full floristics, with an additional 2 condition-assessed sites, intensive field traverses, opportunistic sampling and aerial photograph interpretation. Three plant community types are described and 91taxa of vascular plants recorded from 32 families, including one listed threatened species. VIS_ID 4212

The vegetation of Gundabooka National Park in North Western NSW was assessed using intensive quadrat sampling and mapped using extensive ground truthing and interpretation of aerial photograph and Landsat Thematic Mapper satellite images in 2015. Two hundred and seventy six species of vascular plants were recorded from this survey from 62 families. Species recorded from previous studies but not noted in the present study have been added to give a total of 298 vascular plant species for the Park including 31 (10%) introduced species. Twenty one vegetation communities were identified and mapped, the most widespread being Eucalyptus populnea / Acacia aneura / Acacia excelsa open woodland and Acacia aneura tall shrubland. VIS_ID 3969

Gwydir River National Park and State Conservation Area vegetation mapping was undertaken in various stages by Dr John T. Hunter from 2009 to 2012 by contract for the NPWS Northern Tableland Region. The Gwydir River National Park consists of: - the Mehi Section (approx.15km east of Bingara) mapped in 2010 with the Noonga Addition being mapped in 2012 - the Munro South Section (approx. 30km east south east of Bingara) mapped in 2011. The State Recreation Area consists of: - the Sepoy Section (approx. 35km east of Bingara) mapped in 2009 - Salmon and Murchinson Section (approx. 30km east of Bingara) mapped in 2012 The vegetation of the Mehi section of the Gwydir River National Park is described and mapped (scale 1:25 000). Eight communities are defined. The vegetation of the Noonga section of the Gwydir River National Park is described and mapped (scale 1:25 000). Three communities are defined. The vegetation of the Munro South section of the Gwydir River National Park is described and mapped (scale 1:25 000). Six communities are defined. The vegetation of the Sepoy section of the Gwydir River SCA is described and mapped (scale 1:50 000). Five communities are defined. The vegetation of the Salmon and Murchison sections of the Gwydir River SCA is described and mapped (scale 1:25 000) based on SPOT imagery. Seven communities are defined. All communities were defined based on classification (Kulczynski association) and mapped based on ground truthing, air photo interpretation and landform. VIS_ID 4806