Distribution and habitat features associated with remnant populations of New England cottontails in Maine
Bibliographic record
Abstract
We investigated the distribution and habitat associations of New England cottontails (Sylvilagus transitionalis; NEC) at the northern edge of their historic range (state of Maine) during the winters of 19992000 and 20002001. We compared features of regions ([Formula: see text]100 km2), landscapes (multiple home ranges of NEC within 1 km of suitable habitat), and patches (usually <0.1 km2) among sites that were occupied by NEC, occupied by a potential competitor (snowshoe hares, Lepus americanus), or vacant. The current range of NEC in Maine is approximately 1600 km2 versus a recent historic range of 9400 km2 (83% decline). Loss of early-successional forests may explain the decline in abundance but does not explain the pattern of range contraction. Patches occupied by NEC were larger, had a greater density of understory vegetation, and were more frequently associated with idle agricultural lands than vacant patches. Habitats occupied by snowshoe hares were characterized by a greater proportion of forest and a lower density of roads in the surrounding landscape, were more often associated with recent clearcuts, and had a lower density of understory vegetation than sites occupied by NEC. Based on current land-use patterns, remaining populations of NEC in Maine are vulnerable to extirpation.
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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 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| 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".