Invasive Species Presence

AUS-TDG-FOR-ISP General Moderate confidence

Benchmark Value

50 %

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 Point Guard MaximumOnly Guard MaximumOnly Guard OptimalRange Guard MaximumOnly Guard

Evidence & Context

Proposed Limit: >50% total projective foliage cover of perennial exotic invasive plant species.

Metric Definition:

total projective foliage cover of perennial exotic invasive plant species

Benchmark Definition:

This benchmark defines a severe upper limit of 50% invasive perennial exotic plant species cover in temperate dry woodlands and native grasslands under production forestry, indicating severe ecosystem degradation and potential irreversibility.

Justification:

Exceeds 'moderate quality' inverse; invasive dominance likely alters ecosystem processes fundamentally; severe biodiversity loss expected.

Sources (1)

Preview of Natural Temperate Grassland of the South Eastern Highlands: a nationally protected ecological community - DCCEEW, accessed August 12, 2025,

Natural Temperate Grassland of the South Eastern Highlands: a nationally protected ecological community - DCCEEW, accessed August 12, 2025, Journal

Natural Temperate Grassland of the South Eastern ... - DCCEEW

View Source

Supporting Sources (9)

Additional references from the underlying research that informed this benchmark.

2024 State of the Environment Report - Tasmanian Planning Commission, accessed on May 25, 2025,

Contextual Support Journal

Biodiversity impacts of Chilean needle grass Nassella neesiana on Australia's indigenous grasslands - VU Research Repository

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Abstracts - SER AUSTRALASIA

Contextual Support Journal

Management approaches | Australia state of the environment 2021

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Australia state of the environment 2021: land

Contextual Support Journal

Australia state of the environment 2021: land

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Fauna Conservation in Australian Plantation Forests – A Review ...

Contextual Support Journal

openresearch-repository.anu.edu.au

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Preview of Forest Stewardship Council and Responsible Wood certification in the integrated pest management in Australian forest plantations | Request PDF - ResearchGate

Forest Stewardship Council and Responsible Wood certification in the integrated pest management in Australian forest plantations | Request PDF - ResearchGate

Contextual Support Journal

Forest Stewardship Council and Responsible Wood certification in the integrated pest management in Australian forest plantations | Request PDF - ResearchGate

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invasives.com.au

Direct Evidence Journal

invasives.com.au

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Research supporting restoration aiming to make a fragmented landscape 'functional' for native wildlife | Request PDF - ResearchGate

Contextual Support Journal

Research supporting restoration aiming to make a fragmented landscape 'functional' for native wildlife | Request PDF - ResearchGate

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Preview of Threat-abatement framework confirms habitat retention and invasive species management are critical to conserve Australia's threatened species | Request PDF - ResearchGate

Threat-abatement framework confirms habitat retention and invasive species management are critical to conserve Australia's threatened species | Request PDF - ResearchGate

Contextual Support Journal

Weeds - Department of Biodiversity, Conservation and Attractions

View Source

Weed Risk Assessment for Nassella neesiana (Trin. & Rupr.) Barkworth (Poaceae) – Chilean needlegrass - APHIS

Contextual Support Journal

Weed Risk Assessment for Nassella neesiana (Trin. & Rupr.) Barkworth (Poaceae) – Chilean needlegrass - APHIS

View Source

Context

Region Australia
Biome Temperate Dry Woodlands & Native Grasslands
Land Use Production Forestry
Assessment Conservation Target
Vegetation Woodland
Evidence Type DegradationThreshold

Lifecycle

Status Active
Version 2
Effective From 10 Jun 2026

Notes

Upper Detrimental Limit representing severe degradation and potential irreversibility.

Related Benchmarks

Other benchmarks in the AUS-TDG-FOR-ISP family.