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
"There was strong evidence for a threshold response in species richness: non-linear models (broken-stick, exponential, inverse) exhibiting a sharp decline in species richness in landscapes with less than 10% habitat cover provided a better fit to the observed data than linear models."
Landscape-scale threshold of woody native vegetation cover (measured as % cover within a 100 km2 landscape) below which severe bird species loss occurs.
Landscape-scale threshold below which severe bird species loss occurs.
Direct empirical evidence of landscape-level thresholds from a fragmented agricultural environment in southeastern Australia.
Sources (1)
Landscape-level thresholds of habitat cover for woodland-dependent birds
View SourceSupporting Sources (4)
Additional references from the underlying research that informed this benchmark.
An introduction to ecological thresholds
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Approved Conservation Advice for the Grey Box (Eucalyptus microcarpa) Grassy Woodlands and Derived Native Grasslands of South-east Australia
View Source
Approved Conservation Advice for the Natural Temperate Grassland of the South Eastern Highlands
View SourceWhite Box - Yellow Box - Blakely's Red Gum Grassy Woodland and Derived Native Grassland National Recovery Plan
View Source