Size and Age of Migrating Eastern Red Efts (Notophthalmus viridescens) from the Laurentian Shield, Quebec
Bibliographic record
Abstract
From June to October 1994, we used drift fences to sample migrating red efts (Notophthalmus viridescens) in terrestrial habitats near a permanent oligotrophic lake in the Mastigouche Reserve, Quebec. Fences were placed up to 200 m from the shore and yielded a total of 1443 efts. Age was estimated by skeletochronology. More than 1200 efts (modal SVL 20 mm, age 0 , 1, and 2 yr) were caught while migrating toward the forest; most (83%) were caught in fences < 15 m from shore between 7 and 30 September. Efts migrating toward the lake (N = 226) were more frequent in June (39.4%) and August (37.6%). Those from three fences nearest shore (< 87 m) were maturing efts (modal SVL 32 mm; age 3–5 yr). Age and SVL were highly correlated in the eft population. Fence distance from shore and the interaction of this factor with fence side accounted for a significant portion of eft body size variation. Results suggest that maturing efts may need more than one season to migrate from terrestrial home range to spawning lake. Reduced migration during midsummer may be the result of adverse conditions on the forest floor. We estimated the median number of breeding seasons (2.5) in the study population by comparing age structure of the maturing eft population with that of adults in the nearby lake.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 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 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".