Mercury in eastern coyotes from Nova Scotia, Canada: Effects of geography and trophic position
Bibliographic record
Abstract
Mercury (Hg) is a global environmental concern due to its wide distribution and myriad of deleterious effects on biota. We studied hepatic Hg in a widespread, top predator in the terrestrial ecosystem of Nova Scotia, Canada, the eastern coyote (Canis latrans), to determine recent concentrations, identify drivers of variation in Hg levels, and assess the utility of this species as a mercury biomonitor for this ecosystem. Coyotes feeding at higher trophic levels, and those in the south and east of the province, had higher Hg concentrations, but there was high variability within and among age-sex groupings. We conclude that coyotes may be useful biomonitors at larger regional scales (e.g., the Maritimes), but we recommend additional research on fishers (Pekania pennanti), a species which we used to compare to coyotes, and for which trophic position and Hg concentrations were surprisingly high at smaller scales within Nova Scotia.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".