Invasive Species Presence

AUS-TMS-LVG-ISP General High confidence

Benchmark Value

5 %
Direction: Lower is desirable ↓
Form: MaximumOnly

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

In this optimal state, the cover of invasive species is negligible, defined as ²6le5%.

Metric Definition:

Cover percentage of invasive plant species in the grazing landscape

Benchmark Definition:

The benchmark represents the upper limit for invasive weed cover in a grazing landscape classified as "Class A" (Very Good) condition within a State and Transition Model (STM) framework.

Justification:

This value is from a quantitative, field-based land assessment framework and aligns with the principle that minimal invasive presence is integral to high ecological health.

Sources (2)

Preview of A strategy for dealing with invasive species in Australia, accessed August 12, 2025,
A strategy for dealing with invasive species in Australia, accessed August 12, 2025, GreyLiterature

A Landscape Approach to Invasive Species Management - PMC - PubMed Central

View Source
Preview of Grazing Management in Tropical Savannas: Utilization and Rest Strategies to Manipulate Rangeland Condition - Journals, accessed July 19, 2025
Grazing Management in Tropical Savannas: Utilization and Rest Strategies to Manipulate Rangeland Condition - Journals, accessed July 19, 2025

Grazing management impacts on vegetation, soil biota and soil chemical, physical and hydrological properties in tall grass prairie, accessed July 23, 2025,

View Source

Supporting Sources (27)

Additional references from the underlying research that informed this benchmark.

Preview of (PDF) Best-bet practices for managing grazing lands in the Barkly Tableland region of the Northern Territory. A technical guide to options for optimising land condition, animal production and profitability. - ResearchGate, accessed July 23, 2025
(PDF) Best-bet practices for managing grazing lands in the Barkly Tableland region of the Northern Territory. A technical guide to options for optimising land condition, animal production and profitability. - ResearchGate, accessed July 23, 2025
Contextual Support GreyLiterature

(PDF) Best-bet practices for managing grazing lands in the Barkly Tableland region of the Northern Territory. A technical guide to options for optimising land condition, animal production and profitability. - ResearchGate, accessed July 23, 2025

View Source
Preview of Advice to the Minister for the Environment, Water, Heritage and the Arts from the Threatened Species Scientific Committee (the C - DCCEEW, accessed July 23, 2025,
Advice to the Minister for the Environment, Water, Heritage and the Arts from the Threatened Species Scientific Committee (the C - DCCEEW, accessed July 23, 2025,
Contextual Support Journal

Advice to the Minister for the Environment, Water, Heritage and the Arts from the Threatened Species Scientific Committee (the C - DCCEEW, accessed July 23, 2025,

View Source
Preview of Arresting grazing land condition decline in Queensland's northern gulf should be framed around improving business performance, accessed July 23, 2025
Arresting grazing land condition decline in Queensland's northern gulf should be framed around improving business performance, accessed July 23, 2025
Contextual Support Journal

A contemporary assessment of land condition in the Northern Gulf region of Queensland, accessed July 23, 2025

View Source
Preview of CHAPTER 8: - Targeted Livestock Grazing to Suppress Invasive Annual Grasses - Society for Range Management, accessed July 23, 2025
CHAPTER 8: - Targeted Livestock Grazing to Suppress Invasive Annual Grasses - Society for Range Management, accessed July 23, 2025
Regulatory Framework Government

CHAPTER 8: - Targeted Livestock Grazing to Suppress Invasive Annual Grasses - Society for Range Management, accessed July 23, 2025

View Source
Preview of Control gamba grass | NT.GOV.AU, accessed July 23, 2025
Control gamba grass | NT.GOV.AU, accessed July 23, 2025
Regulatory Framework Government

Gamba grass | Business Queensland, accessed July 23, 2025

View Source
Preview of Effects of Andropogon gayanus (gamba grass) invasion on ecosystem nitrogen dynamics in an Australian tropical savanna - CDU Research Webportal, accessed July 23, 2025
Effects of Andropogon gayanus (gamba grass) invasion on ecosystem nitrogen dynamics in an Australian tropical savanna - CDU Research Webportal, accessed July 23, 2025
Contextual Support GreyLiterature

Andropogon gayanus - Wikipedia, accessed July 23, 2025

View Source
Preview of Gamba grass a declared weed in QLD and the Northern Territory - Invasive Species Council, accessed July 23, 2025
Gamba grass a declared weed in QLD and the Northern Territory - Invasive Species Council, accessed July 23, 2025
Contextual Support GreyLiterature

env301 | The Impacts - Gamba Grass - Learnline, accessed July 23, 2025

View Source
Preview of Gamba Grass Management Guide - Northern Territory Government, accessed July 23, 2025
Gamba Grass Management Guide - Northern Territory Government, accessed July 23, 2025
Regulatory Framework Government

Gamba Grass Management Guide - Northern Territory Government, accessed July 23, 2025

View Source
Preview of Habitat structure facilitates coexistence of native and invasive mesopredators in an Australian tropical savanna - CSIRO PUBLISHING | Wildlife Research
Habitat structure facilitates coexistence of native and invasive mesopredators in an Australian tropical savanna - CSIRO PUBLISHING | Wildlife Research
Contextual Support Journal

Cane Toad Risk Assessment - Department of Primary Industries, Queensland

View Source
Preview of In Australian Outback, Fight Against Invasive Grass Advances Slowly | The Pew Charitable Trusts, accessed July 23, 2025
In Australian Outback, Fight Against Invasive Grass Advances Slowly | The Pew Charitable Trusts, accessed July 23, 2025
Contextual Support Journal

In Australian Outback, Fight Against Invasive Grass Advances Slowly | The Pew Charitable Trusts, accessed July 23, 2025

View Source
Preview of Invasive Andropogon gayanus (gamba grass) is an ecosystem transformer of nitrogen relations in Australian savanna
Invasive Andropogon gayanus (gamba grass) is an ecosystem transformer of nitrogen relations in Australian savanna
Contextual Support Journal

How researchers are mapping an invasive species advancing across an entire region, accessed July 23, 2025

View Source
Preview of Invasive pasture grasses in northern Australia - gamba grass, para ..., accessed July 23, 2025
Invasive pasture grasses in northern Australia - gamba grass, para ..., accessed July 23, 2025
Contextual Support Journal

Australian Pest Animal Strategy 2017-2027

View Source
Preview of Invasive species are Australia's number-one extinction threat - CSIRO
Invasive species are Australia's number-one extinction threat - CSIRO
Contextual Support Government

Invasive species, problematic native species, and diseases | Australia state of the environment 2021, accessed July 21, 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

National RD&E Priorities for Invasive Plants and Animals, accessed July 27, 2025

View Source
Preview of Inviting trouble: Introduced pasture species in northern Australia - ResearchGate, accessed July 23, 2025
Inviting trouble: Introduced pasture species in northern Australia - ResearchGate, accessed July 23, 2025
Contextual Support Journal

Inviting trouble: Introduced pasture species in northern Australia - ResearchGate, accessed July 23, 2025

View Source
Preview of Modelling the resilience of Australian savanna systems to grazing impacts - Natural Resource Ecology Laboratory, accessed July 23, 2025
Modelling the resilience of Australian savanna systems to grazing impacts - Natural Resource Ecology Laboratory, accessed July 23, 2025
Contextual Support Journal

Modelling the resilience of Australian savanna systems to grazing impacts - Natural Resource Ecology Laboratory, accessed July 23, 2025

View Source
Preview of New ways to manage gamba grass & fire in the NT's Mary River National Park - Resilient Landscapes Hub, accessed July 23, 2025
New ways to manage gamba grass & fire in the NT's Mary River National Park - Resilient Landscapes Hub, accessed July 23, 2025
Contextual Support Journal

Mammals of Australia's tropical savannas: a conceptual model of assemblage structure and regulatory factors in the Kimberley region - PubMed, accessed July 23, 2025

View Source
Preview of Northern Territory's Weeds Management Act 2001
Northern Territory's Weeds Management Act 2001
Contextual Support Government

Management options for gamba grass (Andropogon gayanus) in conservation areas of Cape York Peninsula - Resilient Landscapes Hub, accessed July 23, 2025,

View Source
Preview of Overgrazing & Reducing Grazing Pressure | Bush Heritage Australia, accessed July 28, 2025,
Overgrazing & Reducing Grazing Pressure | Bush Heritage Australia, accessed July 28, 2025,
Contextual Support Journal

Cycling of phosphorus in grazing systems - NSW Department of Primary Industries

View Source
Preview of Overgrazing & Reducing Grazing Pressure | Bush Heritage Australia, accessed July 30, 2025,
Overgrazing & Reducing Grazing Pressure | Bush Heritage Australia, accessed July 30, 2025,
Contextual Support

Soil PhD Research | Bush Heritage Australia, accessed July 28, 2025

View Source
Preview of Progressive rehabilitation and closure plan schedule for P-PRCP-100812653 - NET, accessed July 18, 2025,
Progressive rehabilitation and closure plan schedule for P-PRCP-100812653 - NET, accessed July 18, 2025,
Contextual Support Journal

Ian Partridge - FutureBeef, accessed July 23, 2025

View Source
Preview of Restoring Your Invasive Perennial-Dominated Grassland to Conservation Prairie, accessed July 23, 2025
Restoring Your Invasive Perennial-Dominated Grassland to Conservation Prairie, accessed July 23, 2025
Contextual Support

Restoring Your Invasive Perennial-Dominated Grassland to Conservation Prairie, accessed July 23, 2025

View Source
Preview of Savanna carbon emissions improved by dead reckoning - CSIRO, accessed July 23, 2025
Savanna carbon emissions improved by dead reckoning - CSIRO, accessed July 23, 2025
Contextual Support Government

Savanna carbon emissions improved by dead reckoning - CSIRO, accessed July 23, 2025

View Source
Preview of Spatial and temporal effects of grazing management and rainfall on the vertebrate fauna of a tropical savanna - CSIRO Publishing, accessed July 19, 2025
Spatial and temporal effects of grazing management and rainfall on the vertebrate fauna of a tropical savanna - CSIRO Publishing, accessed July 19, 2025
Contextual Support Journal

Spatial and temporal effects of grazing ... - CSIRO Publishing, accessed July 23, 2025

View Source
Preview of Submission - Regulation, control and management of invasive species and the Environment Protection and Biodiversity Conservation, accessed August 12, 2025,
Submission - Regulation, control and management of invasive species and the Environment Protection and Biodiversity Conservation, accessed August 12, 2025,
Contextual Support Journal

Gamba Army | Territory NRM, accessed July 23, 2025

View Source
Preview of Submission - Regulation, control and management of invasive species and the Environment Protection and Biodiversity Conservation, accessed July 23, 2025
Submission - Regulation, control and management of invasive species and the Environment Protection and Biodiversity Conservation, accessed July 23, 2025
Contextual Support Journal

Submission - Regulation, control and management of invasive species and the Environment Protection and Biodiversity Conservation, accessed July 23, 2025

View Source
Preview of The Top End's tropical savannas are a natural wonder – but weak environment laws mean their future is uncertain - Yahoo, accessed July 23, 2025
The Top End's tropical savannas are a natural wonder – but weak environment laws mean their future is uncertain - Yahoo, accessed July 23, 2025
Contextual Support GreyLiterature

A strategy for dealing with invasive species in Australia, accessed July 23, 2025

View Source

Context

  • Region Australia
  • Biome Tropical Monsoonal Savannas
  • Land Use Livestock Grazing & Pasture
  • Assessment Conservation Target
  • Evidence Type ReferenceCondition

Lifecycle

  • Status Active
  • Version 1
  • Effective From 6 Jun 2026

Notes

Exceeding this level signifies a transition to a degraded state. The optimal state is functionally zero presence, while the upper detrimental threshold is a state of ecosystem transformation (e.g., >75% cover by an invasive grass) rather than a specific percentage.