eDNA Biodiversity Detection
Benchmark Value
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 2 benchmarks together — the Point form drives the primary score, while 1 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
The degraded site shows a stark reduction in native species richness (from 16 to 5) and a community dominated by invasive species (4 detected).
Lower critical threshold of native vertebrate species richness indicating ecosystem degradation.
This benchmark defines the lower critical threshold of native vertebrate species richness below which the ecosystem is considered degraded in the target biome under livestock grazing land use.
The lower threshold is based on the comparison between a high-integrity benchmark site and a degraded exemplar site, showing a significant drop in native species richness and increase in invasive species.
Sources (1)
Great Australian Wildlife Search - Biodiversity Findings Report Spring 2023
View SourceSupporting Sources (4)
Additional references from the underlying research that informed this benchmark.
Revolutionising environmental monitoring using eDNA - CSIRO
View SourceeDNA explained: unlocking nature's hidden biodiversity - CSIRO
View SourceEnvironmental DNA provides higher resolution assessment of riverine biodiversity and ecosystem function via spatio-temporal nestedness and turnover partitioning
View Source
eDNA results from the Great Australian Wildlife Search | MurrayDarling Basin Authority
View Source