Invasive Species Presence

AUS-TSW-FOR-ISP General Moderate confidence

Benchmark Value

50 %

Thresholds: Lower: —, Upper: 50

Direction: Lower is desirable ↓

Form: UpperThreshold

Scoring Curve

This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context. The scoring engine uses 3 benchmarks together — the Point form drives the primary score, while 2 guard(s) constrain the result.

Contributing Benchmarks

Point Primary UpperThreshold Guard MaximumOnly Guard

Evidence & Context

It permits the clearing of INS where they "comprise at least 50% of the trees and shrubs in an area".

Metric Definition:

Percentage composition of Invasive Native Species (INS) in trees and shrubs in an area

Benchmark Definition:

This benchmark defines the upper detrimental threshold for invasive native species presence, indicating the point at which INS comprise 50% or more of trees and shrubs, triggering management intervention in temperate semi-arid shrublands and open woodlands under production forestry.

Justification:

This codifies the point at which the native species' density has become so dominant that it is considered ecologically unbalanced and requires intervention.