Invasive Species Presence

AUS-AKW-LVG-ISP General Moderate confidence

Benchmark Value

No specific value — see range

Direction: Lower is desirable ↓

Form: CompositeFramework

Scoring Curve

Scoring curve unavailable

The scoring engine could not generate a curve for this benchmark context. The primary form is CompositeFramework, but the benchmark data may be missing required fields (e.g., optimal range bounds for an OptimalRange benchmark). This is typically a data quality issue in the benchmark pipeline.

Contributing Benchmarks

CompositeFramework Primary MaximumOnly Guard

Evidence & Context

The benchmark for 'best-on-offer' is therefore the lowest level of presence that is realistically achievable and sustainable across a managed landscape.

Metric Definition:

Presence or absence of invasive species and percent foliar cover of invasive plants as indicators of ecological health.

Benchmark Definition:

This benchmark represents the functional absence of ecosystem-transforming invasive plants and minimal presence of other invasive species under best-practice management in Australia's Arid Karstic Woodlands & Shrublands under sustainable livestock grazing.

Justification:

Derived from synthesis of quantitative plot data from TERN AusPlots and qualitative best-practice management guidelines.

Supporting Sources (2)

Additional references from the underlying research that informed this benchmark.

Ecological impacts of buffel grass (Cenchrus ... - CSIRO Publishing, accessed July 24, 2025

Contextual Support Journal

Ecological impacts of buffel grass (Cenchrus ciliaris L.) invasion in central Australia - CSIRO Publishing, accessed August 2, 2025

View Source

Nullarbor bioregion - DCCEEW, accessed July 27, 2025

Contextual Support Journal

Nullarbor bioregion - DCCEEW, accessed July 24, 2025

View Source

Context

Region Australia
Biome Arid Karstic Woodlands & Shrublands
Land Use Livestock Grazing & Pasture
Assessment Conservation Target
Evidence Type ReferenceCondition

Lifecycle

Status Active
Version 1
Effective From 4 Jun 2026

Notes

This composite benchmark represents the best-available ecological condition achievable under sustainable livestock grazing in Australia's Arid Karstic Woodlands & Shrublands, with the Nullarbor bioregion serving as the reference landscape. It is derived from a synthesis of quantitative plot data from TERN's national ecosystem surveillance program and qualitative goals from best-practice management frameworks. The optimal range for key threatening invasive species is functional absence, as any significant presence degrades ecological integrity.