A Characterization of the Vegetation Communities of Three Retrogressive Thaw Slumps on Herschel Island, Yukon Territory, Canada
Bibliographic record
Abstract
Retrogressive thaw slumps are landscape features resulting from thawing ice-rich permafrost which tend to go through cycles of activity. This cycle of disturbance and stabilization results in distinctive geomorphic units reflecting the stage of stabilization and the time since disturbance. This thesis describes the vegetation and soil characteristic of geomorphic units for three active, polycyclic retrogressive thaw slumps on Herschel Island, YT. At each unit, 60m transects with six 1m x 1m plots were established and species presence, diversity, and percent cover were used to define the plant community. Distinct vegetation communities are associated with the geomorphic units of each thaw slump, representing their relative age and stabilization. Where anomalies exist, they can be explained by the presence of vegetation remnants. Since vegetation exerts strong controls on local ecosystem processes, recognizing the effects of disturbance on revegetation patterns is critical to understanding climate change in the Arctic.
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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 | 0.002 |
| Science and technology studies | 0.003 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 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".