Decomposition process and arthropod succession on pig carcasses in Quebec (Canada)
Bibliographic record
Abstract
Necrophagous arthropods are essential ecosystem decomposers and are important indicator species in the discipline of forensic entomology. Studies around the world have evaluated the succession of arthropods on animal carcasses, but no published data are available for the province of Quebec (Canada). The objective of this study was to evaluate the diversity of arthropods associated with pig carcasses in Quebec, and to determine the colonization sequence of the different families/species throughout the decomposition process. Three pig carcasses were deposited in a small woodland area in Trois-Rivières, in mid-June 2019. The decomposition process and the arthropod community were studied until the beginning of November (first snowfall) by visual observation, and sample collection on the carcasses, using an entomological net and pitfall traps. Five species of blow fly (Diptera: Calliphoridae) were found to lay eggs on the carcasses: Calliphora livida, C. vomitoria, Lucilia illustris, Phormia regina, and Protophormia terraenovae. Eggs/larvae of the first three species were recorded during the first week only (fresh stage-beginning of active decay), while the other two species were recorded throughout the decomposition process until the dry remains stage. Coleoptera were observed from day 0 to day 141 (end of experiment). Some families/species were associated with early stages of decomposition (e.g. Necrophila americana, Silphidae), while others were only found during the dry remains stage (e.g. Carnicops pumilio, Histeridae).
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".