Invasive Species Presence

AUS-TMI-LVG-ISP General High confidence

Benchmark Value

No specific value — see range
Thresholds: Lower: 0, Upper: —
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 UpperThreshold Guard MaximumOnly Guard CompositeFramework Guard CompositeFramework Guard

Evidence & Context

The reference value for Invasive Species Presence is the achievement of this managed state. A grazing property or landscape within this biome is considered to be in the "best available condition" if it is operating in alignment with, and contributing to the goals of, a comprehensive management plan like those implemented on Lord Howe and Norfolk Islands.

Metric Definition:

Active implementation of a comprehensive, scientifically-grounded invasive species management plan with clear, quantitative targets for suppression or eradication of identified threatening species.

Benchmark Definition:

This benchmark represents the best available condition for invasive species presence in tropical and subtropical maritime island grazing landscapes, defined as the active implementation of a comprehensive invasive species management plan with clear quantitative targets for suppression or eradication.

Justification:

This management-centric approach is necessitated by the ecological reality of island invasions where complete absence is aspirational and the true measure is the capacity to mitigate threats and demonstrate progress towards targets.

Sources (3)

Preview of Lord Howe Island Biodiversity Management Plan - DCCEEW, accessed August 4, 2025,
Lord Howe Island Biodiversity Management Plan - DCCEEW, accessed August 4, 2025, Journal

Geology | Norfolk Island National Park | Parks Australia

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Preview of Norfolk Island Region Threatened Species Recovery Plan - DCCEEW
Norfolk Island Region Threatened Species Recovery Plan - DCCEEW Journal

Norfolk Island - DCCEEW

View Source
Preview of Rodent eradication on Lord Howe Island: challenges posed by people, livestock, and threatened endemics - ResearchGate
Rodent eradication on Lord Howe Island: challenges posed by people, livestock, and threatened endemics - ResearchGate GreyLiterature

Rodent eradication on Lord Howe Island: challenges posed by people, livestock, and threatened endemics - ResearchGate

View Source

Supporting Sources (18)

Additional references from the underlying research that informed this benchmark.

Preview of Conservation | Lord Howe Island
Conservation | Lord Howe Island
Contextual Support GreyLiterature

Conservation | Lord Howe Island

View Source
Preview of Conservation | Lord Howe Island, accessed August 3, 2025,
Conservation | Lord Howe Island, accessed August 3, 2025,
Contextual Support

History | Christmas Island National Park | Parks Australia

View Source
Preview of Do regenerative grazing management practices improve vegetation and soil health in grazed rangelands? Preliminary insights from a space for time study in the Great Barrier Reef catchments - CSIRO Research Publications Repository
Do regenerative grazing management practices improve vegetation and soil health in grazed rangelands? Preliminary insights from a space for time study in the Great Barrier Reef catchments - CSIRO Research Publications Repository
Contextual Support Journal

Do regenerative grazing management practices improve vegetation and soil health in grazed rangelands? Preliminary insights from a space for time study in the Great Barrier Reef catchments - CSIRO Research Publications Repository

View Source
Preview of Environment Monitoring Systems & Data for Ecosystem Studies ..., accessed July 30, 2025,
Environment Monitoring Systems & Data for Ecosystem Studies ..., accessed July 30, 2025,
Contextual Support Government

(PDF) Evaluation of genetic markers for the metabarcoding of ...

View Source
Preview of Graziers contribute to preserving the Great Barrier Reef
Graziers contribute to preserving the Great Barrier Reef
Contextual Support GreyLiterature

Graziers contribute to preserving the Great Barrier Reef

View Source
Preview of History - Shire of Cocos
History - Shire of Cocos
Contextual Support Government

History - Shire of Cocos

View Source
Preview of How regenerative farming practices are revolutionising biodiversity in agriculture - Institute of Sustainability Studies, accessed July 25, 2025,
How regenerative farming practices are revolutionising biodiversity in agriculture - Institute of Sustainability Studies, accessed July 25, 2025,
Contextual Support GreyLiterature

managing cattle grazing on norfolk island to enhance water quality - MEDIA RELEASE

View Source
Preview of Invasive Species 2021 | NSW State of the Environment
Invasive Species 2021 | NSW State of the Environment
Contextual Support Journal

Invasive Species 2021 | NSW State of the Environment

View Source
Preview of Lord Howe Island subtropical forests | EBSCO Research Starters, accessed August 3, 2025,
Lord Howe Island subtropical forests | EBSCO Research Starters, accessed August 3, 2025,
Contextual Support

Norfolk Island Plant Communities - Jerry Coleby-Williams

View Source
Preview of Lord Howe Island, NSW 2898 Telephone: (02) 65632066
Lord Howe Island, NSW 2898 Telephone: (02) 65632066
Contextual Support

Lord Howe Island, NSW 2898 Telephone: (02) 65632066

View Source
Preview of Lord Howe Island, NSW 2898 Telephone: (02) 65632066, accessed August 4, 2025,
Lord Howe Island, NSW 2898 Telephone: (02) 65632066, accessed August 4, 2025,
Contextual Support Journal

UN Food and Agriculture Organization (FAO) definition of forest canopy cover minimum

View Source
Preview of Managing Cattle Grazing on Norfolk Island to Enhance Water Quality
Managing Cattle Grazing on Norfolk Island to Enhance Water Quality
Contextual Support GreyLiterature

Managing Cattle Grazing on Norfolk Island

View Source
Preview of Managing cattle grazing on Norfolk Island tos enhance water quality - Agronomist visit
Managing cattle grazing on Norfolk Island tos enhance water quality - Agronomist visit
Contextual Support Government

Norfolk Island Public Land Grazing Management Strategy

View Source
Preview of The farmers of Lord Howe Island - The Farmer Magazine
The farmers of Lord Howe Island - The Farmer Magazine
Contextual Support GreyLiterature

The farmers of Lord Howe Island - The Farmer Magazine

View Source
Preview of The Longest Paddock: Cattle on Norfolk Island
The Longest Paddock: Cattle on Norfolk Island
Contextual Support GreyLiterature

The Longest Paddock: Cattle on Norfolk Island

View Source
Preview of The Lord Howe Island Rodent Eradication: Social and Technical Lessons for Inhabited Islands - DigitalCommons@USU, accessed August 3, 2025,
The Lord Howe Island Rodent Eradication: Social and Technical Lessons for Inhabited Islands - DigitalCommons@USU, accessed August 3, 2025,
Contextual Support

Government funding to increase biosecurity measures - Lord Howe Island Museum, accessed August 2, 2025

View Source
Preview of Understanding pasture management and sustainability | Business Queensland, accessed July 18, 2025,
Understanding pasture management and sustainability | Business Queensland, accessed July 18, 2025,
Contextual Support Government

GONE: Australian animals extinct since the 1960s | Invasive Species Council

View Source
Preview of Weeding out a pesky problem on Lord Howe Island - CSIRO, accessed August 3, 2025,
Weeding out a pesky problem on Lord Howe Island - CSIRO, accessed August 3, 2025,
Contextual Support Government

How regenerative farming practices are revolutionising biodiversity in agriculture - Institute of Sustainability Studies

View Source

Context

  • Region Australia
  • Biome Tropical & Subtropical Maritime Islands
  • Land Use Livestock Grazing & Pasture
  • Assessment Not Stated
  • Evidence Type ReferenceCondition

Lifecycle

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

Notes

A simple quantitative metric is insufficient. The best available condition is a managed state with active, targeted invasive species control. The upper detrimental threshold is the point triggering major management response; the optimal and lower thresholds are zero presence due to risk. No upper detrimental threshold — higher values are always worse. AssessmentContext defaulted to 'Not Stated' because the source document did not state one.