Actual and potential host range of Arsenophonus nasoniae in an ecological guild of filth flies and their parasitic wasps
Bibliographic record
Abstract
The gammaproteobacterium Arsenophonus nasoniae infects Nasonia vitripennis (Hymenoptera: Pteromalidae), a parasitic wasp that attacks filth flies. This bacterium kills virtually all male offspring of infected females. Female wasps transmit A. nasoniae both vertically (from mother to offspring) and horizontally (to unrelated Nasonia developing in the same fly). This latter mode may enable the bacterium to colonize novel species and spread throughout a filth fly-parasitoid guild. This spread may be important for maintenance of the bacterium. The ecology of novel hosts may be significantly impacted by infection. The actual and potential host range of A. nasoniae was assessed. I used Arsenophonus-specific primers to screen a large sample of filth flies and their parasitoids. The bacterium infects a wide range of wasp species in the environment. The potential host range was determined by inoculating three wasp and one fly species with an isolate of A. nasoniae from Lethbridge, AB. The bacterium successfully infected all insects and was transmitted by two wasp species. It reduced host longevity, but did not kill males, in Trichomalopsis sarcophagae. It also caused pupal mortality in Musca domestica.
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 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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 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".