Habitat and movements of overwintering Blanding's turtles (Emydoidea blandingii) in Nova Scotia
Bibliographic record
Abstract
Winter habitats of Blanding's turtle in a disjunct population complex in southwest Nova Scotia were examined to aid the Blanding's Turtle Recovery Team in conserving critical habitat for this species. Habitat (physical structure, vegetation, water, and substrate depth) and environmental conditions (water and substrate temperature, ice cover, dissolved oxygen, and pH) were examined at eight overwintering (OW) sites, occupied by 46 turtles, and seven paired control (CL) sites. Environmental conditions were measured bi-weekly over two years (January-April 2005 and October 2005-April 2006). To investigate factors affecting turtle location and movement, 25 individuals were regularly radiotracked in the second year. Turtles overwintered fully or partially buried under organic substrate, resting on the bottom, or nestled in submerged vegetation just under the water surface or ice layer. Movement to OW sites was gradual, but departure was rapid, and individual movements during winter did not exceed 11 m; movements were positively correlated with water temperature. Many physical factors and environmental conditions differed among OW sites, but were similar between OW and CL sites. OW sites had variable physical structure and vegetation, and contained abundant of submerged vegetation. Temperature ranged from 0.3-8.6°C in the organic substrate and from 0.3-7.6°C in the water column. Ice cover reached a maximum thickness of 30 cm. In OW sites, median DO ranged from 19.5-91.7 % and median pH ranged from 4.59-5.51. Data suggest that overwintering Blanding's turtles in Nova Scotia can tolerate a wide range of environmental conditions, but that suitable OW sites could be limited because of communal, regular use of several OW sites.
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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 | 0.000 |
| 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".