Monitoring Climate Related Changes in the Availability of Ringed Seal Pupping Habitat in Coastal Labrador
Bibliographic record
Abstract
No abstracts are to be cited without prior reference to the author.Relatively little is known about the adaptive capacity of ringed seals (Phoca hispida) to climate change in many parts of their range. However, because the species requires certain sea ice and snow conditions to successfully overwinter and rear a pup, ringed seals are thought to be sensitive to climatic variability that alters these required habitat characteristics. The pups are born in a protective snow cave (lair) constructed by the female near a well-drifted pressure ridge or ice hummock on landfast ice or relatively stable pack-ice. Adequate snow cover and/or appropriate ice roughness have been correlated with increased survival of ringed seal pups in the High Arctic and in Hudson Bay. The objective of this study was to map and quantify the available habitat for breeding ringed seals using RADARSAT imagery of ice conditions during February and March and data collected by on-ice teams of hunters from the communities of Nain, Hopedale and Rigolet, Labrador. Ice and snow condition data from 2001-2006 at the Nain study area illustrated how expansive intrusions of highly deformed rough ice (2004), extensive sheets of smooth ice (2006), inadequate snow cover (2001 and 2002), an abrupt and early spring melt (2003), and spring storm events (2005, 2006) impacted the availability of suitable pupping habitat. Although, the occurrence and degree of ice deformation was the key determinant of quality habitat, persistent snow accumulation on the ice and the maintenance of a stable ice platform despite severe, unseasonable spring storms (i.e. high seas and rain) appeared to be critical.
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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 | 0.000 | 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".