Invasive Species Presence

AUS-TMS-CON-ISP General Moderate confidence

Benchmark Value

0 presence/absence & %
Thresholds: Lower: 0, Upper: —
Direction: Lower is desirable ↓
Form: LowerThreshold

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.

Evidence & Context

Lower Critical Threshold: The presence of any individuals or populations of highly transformative invasive species (e.g., Gamba grass) that begin to alter ecosystem processes (e.g., fire regimes, native species recruitment) or structure is considered above a critical threshold.

Metric Definition:

Level of invasive species presence at which negative ecological impacts begin.

Benchmark Definition:

Threshold below which invasive species presence does not cause significant ecological harm.

Justification:

Based on ecological impacts of highly transformative invasive species like Gamba grass, where any presence altering ecosystem processes is detrimental.

Sources (1)

Preview of (PDF) Defining and Measuring the Health of Savanna Landscapes ..., accessed May 20, 2025,
(PDF) Defining and Measuring the Health of Savanna Landscapes ..., accessed May 20, 2025, GreyLiterature

(PDF) Defining and Measuring the Health of Savanna Landscapes ..., accessed May 20, 2025

View Source

Supporting Sources (16)

Additional references from the underlying research that informed this benchmark.

Preview of 'This is a crisis': The Territory's peak environment groups respond to State of the Environment Report - NationBuilder, accessed May 20, 2025,
'This is a crisis': The Territory's peak environment groups respond to State of the Environment Report - NationBuilder, accessed May 20, 2025,
Contextual Support Journal

'This is a crisis': The Territory's peak environment groups respond to State of the Environment Report - NationBuilder, accessed May 20, 2025

View Source
Preview of 'This is a crisis': The Territory's peak environment groups respond to State of the Environment Report, accessed May 20, 2025,
'This is a crisis': The Territory's peak environment groups respond to State of the Environment Report, accessed May 20, 2025,
Contextual Support GreyLiterature

'This is a crisis': The Territory's peak environment groups respond to State of the Environment Report, accessed May 20, 2025

View Source
Preview of (PDF) Biogeography of the Australian monsoon tropics - ResearchGate, accessed May 20, 2025,
(PDF) Biogeography of the Australian monsoon tropics - ResearchGate, accessed May 20, 2025,
Contextual Support Journal

(PDF) Biogeography of the Australian monsoon tropics - ResearchGate, accessed May 20, 2025

View Source
Preview of A national‐scale dataset for threats impacting Australia's imperiled flora and fauna - PMC, accessed May 20, 2025,
A national‐scale dataset for threats impacting Australia's imperiled flora and fauna - PMC, accessed May 20, 2025,
Contextual Support Direct Evidence Journal

A national‐scale dataset for threats impacting Australia's imperiled flora and fauna - PMC, accessed May 20, 2025

View Source
Preview of Australia's Fight to Stop Invasive Gamba Grass Is Noble—But Not ..., accessed May 20, 2025,
Australia's Fight to Stop Invasive Gamba Grass Is Noble—But Not ..., accessed May 20, 2025,
Contextual Support GreyLiterature

Australia's Fight to Stop Invasive Gamba Grass Is Noble—But Not ..., accessed May 20, 2025

View Source
Preview of Best Management Practices for Invasive Plants - Mayors' Monarch Pledge, accessed May 20, 2025,
Best Management Practices for Invasive Plants - Mayors' Monarch Pledge, accessed May 20, 2025,
Contextual Support Journal

Best Management Practices for Invasive Plants - Mayors' Monarch Pledge, accessed May 20, 2025

View Source
Preview of Conservation Management Zones of Australia - North ... - DCCEEW, accessed May 20, 2025,
Conservation Management Zones of Australia - North ... - DCCEEW, accessed May 20, 2025,
Contextual Support Journal

Quantifying interception associated with large-scale plantation forestry in the Northern Territory - Resilient Landscapes Hub

View Source
Preview of How researchers are mapping an invasive species advancing ..., accessed May 20, 2025,
How researchers are mapping an invasive species advancing ..., accessed May 20, 2025,
Contextual Support Methodology Source GreyLiterature

How researchers are mapping an invasive species advancing ..., accessed May 20, 2025

View Source
Preview of Invasive species, problematic native species, and diseases ..., accessed May 20, 2025,
Invasive species, problematic native species, and diseases ..., accessed May 20, 2025,
Contextual Support Government

Serrated tussock (Nassella trichotoma) - Australian Association of Bush Regenerators

View Source
Preview of IR532 - Kakadu National Park Landscape Symposia Series 2007–2009. Symposium 1 - DCCEEW, accessed May 20, 2025,
IR532 - Kakadu National Park Landscape Symposia Series 2007–2009. Symposium 1 - DCCEEW, accessed May 20, 2025,
Contextual Support

IR532 - Kakadu National Park Landscape Symposia Series 2007–2009. Symposium 1 - DCCEEW, accessed May 20, 2025

View Source
Preview of The impacts of invasive plant species on biodiversity of Australian ..., accessed May 20, 2025,
The impacts of invasive plant species on biodiversity of Australian ..., accessed May 20, 2025,
Contextual Support

The impacts of invasive plant species on biodiversity of Australian rangelands, accessed August 12, 2025

View Source
Preview of www.publish.csiro.au, accessed May 20, 2025,
www.publish.csiro.au, accessed May 20, 2025,
Contextual Support Journal

The threats to Australia's imperilled species and implications for a national conservation response - CSIRO Publishing, accessed July 19, 2025,

View Source
Preview of www.sprep.org, accessed May 20, 2025
www.sprep.org, accessed May 20, 2025
Contextual Support

www.sprep.org, accessed May 20, 2025

Preview of www.sprep.org, accessed May 20, 2025
www.sprep.org, accessed May 20, 2025
Contextual Support

www.sprep.org, accessed May 20, 2025

Preview of www.sprep.org, accessed May 20, 2025
www.sprep.org, accessed May 20, 2025
Contextual Support

www.sprep.org, accessed May 20, 2025

Preview of www.sprep.org, accessed May 20, 2025,
www.sprep.org, accessed May 20, 2025,
Contextual Support

www.sprep.org, accessed May 20, 2025,

Context

  • Region Australia
  • Biome Tropical Monsoonal Savannas
  • Land Use Conservation / Protected Natural Areas
  • Assessment Conservation Target
  • Evidence Type DegradationThreshold

Lifecycle

  • Status Retired
  • Version 1
  • Effective From 16 Mar 2026

Notes

Threshold is very low for highly transformative species; for less aggressive species, threshold relates to abundance causing detectable declines in native species.