Eastern quoll (Dasyurus viverrinus Shaw, 1800): a review of recent sightings on mainland Australia
Bibliographic record
Abstract
Whether the eastern quoll (Dasyurus viverrinus) is extinct on mainland Australia, particularly New South Wales (NSW), is the focus of this study. The species declined rapidly during the mid to late 1800s in parts of south-east Australia and in the early 1900s around Bega (New South Wales). The last definite live individual was recorded at Vaucluse, NSW in 1963. The recent emergence of a specimen from Barrington Tops, NSW, in 1989 caused much public interest and enabled us to seek reports of sightings after we advertised publicly for any records. Here we document numerous post-1963 records, the most noteworthy including: a photograph of an eastern quoll (reported to be taken in 2013 in the Nungatta area of NSW), records from Wollemi National Park (2002 and 2006) and multiple observations from the 1990s from around Barrington Tops and Carrai. There has been insufficient recent mammal survey effort to definitively support these public reports but at this stage there are sufficient recent credible records to consider that this species may not be extinct on mainland Australia.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.004 | 0.003 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".