Assessment of the <i>Aphodius fimetarius</i>–<i>Aphodius pedellus</i> (Coleoptera: Scarabaeidae) species complex in Canada
Bibliographic record
Abstract
Abstract Aphodius fimetarius (Linnaeus, 1758) (Coleoptera: Scarabaeidae: Aphodiinae: Aphodiini) sensu lato is a taxon of probable European origin common in cattle dung across North America. This species has recently been recognised as a species complex composed of A. fimetarius and Aphodius pedellus (De Geer, 1774), with overlapping distributions in North America. A previous report that only A. pedellus is present in Canada was based on examination of specimens almost solely from the United States of America. In the present study, we examined the morphology of specimens ( n = 2091) from localities across Canada. In combination with DNA barcoding, our results confirm that only A. pedellus is present in Canada. Results of similarity analysis confirm reduced genetic diversity among North American specimens of A. pedellus , consistent with the hypothesis that this species was introduced onto the continent during European settlement.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 0.000 |
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 teacher head, 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".