Swan Coastal Plain Remnant Vegetation Extent 2005

Western Australia's Swan Coastal Plain and Perth-Peel region features polygon data representing remnant native vegetation extent for 2005. The dataset is part of a multi-temporal series mapping pre-1750 vegetation remnants for 2000, 2005, 2010, 2015, 2020, and 2024. Polygons were interpreted using historical and current aerial photography dating from 1953 to the present.

Use Cases

• Analyze changes in vegetation extent by comparing the 2005 polygon data against other years in the series (2000, 2010, etc.)
• Model vegetation condition patterns using the simplified condition attribute attached to some polygons
• Conduct spatial analysis of remnant vegetation coverage across the defined Swan Coastal Plain bioregion polygons
• Integrate polygon data with vegetation complexes data (DBCA-046) for ecological regionalization studies

Strengths

• Provides temporal context as part of a 5-year interval series spanning from 2000 to 2024
• Based on interpreted aerial photography sources covering a long historical period from 1953 onward
• Covers a defined biogeographic region using the Interim Biogeographic Regionalisation of Australia V 7.1

Limitations

• Vegetation condition data is simplified and only attributed to some polygons, not all
• Sample data and specific row/column counts are unavailable for assessing dataset scale
• Relies on interpretation of imagery, which may introduce classification subjectivity

Provenance

Source

Department of Water and Environmental Regulation, Director Nature.

Collection Method

Polygons interpreted from current and historical digital aerial photography sourced from State Government repositories and commercial products.

Time Range

Primary mapping year is 2005, with historical reference imagery from 1953 onward.

Freshness

Data was last updated in March 2026.

Geography

Swan Coastal Plain bioregion and Metropolitan and Peel Region Scheme areas in Western Australia.