Vegetation Extent
Benchmark Value
Scoring Curve
This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context.
Evidence & Context
"To be considered part of the listed ecological community, grassland patches must be at least 0.1 Hectare in size, must have a greater percentage cover of native plants (including annual and perennial species) than the percentage cover of perennial exotic species (i.e. >50% native cover)"
Minimum patch size of naturally treeless grassland required to qualify as the critically endangered Natural Temperate Grassland of the South Eastern Highlands ecological community under the EPBC Act.
Minimum viable spatial extent for naturally treeless grassland to qualify as the critically endangered ecological community.
This is the official statutory threshold in the Approved Conservation Advice under the EPBC Act.
Sources (1)
Approved Conservation Advice for the Natural Temperate Grassland of the South Eastern Highlands
View SourceSupporting Sources (4)
Additional references from the underlying research that informed this benchmark.
An introduction to ecological thresholds
View Source
Approved Conservation Advice for the Grey Box (Eucalyptus microcarpa) Grassy Woodlands and Derived Native Grasslands of South-east Australia
View SourceLandscape-level thresholds of habitat cover for woodland-dependent birds
View SourceWhite Box - Yellow Box - Blakely's Red Gum Grassy Woodland and Derived Native Grassland National Recovery Plan
View Source