Observations of change in the cover of Polargrass, Arctagrostis latifolia, and Arctic Lupine, Lupinus acticus, in upland tundra on Hershel Island, Yukon Territory
Bibliographic record
Abstract
Herschel Island is located in the southern Beaufort Sea off the northern coast of the Yukon Territory and has acted as an excellent observatory of environmental change in the Canadian western Arctic.Between 1986 and 1999 the percentage cover of Polargrass (Arctagrostis latifolia (R.Br.)Griseb.) was observed to increase from 1% to >5% in a dominant upland tundra vegetation type on Herschel Island.For example, the Arctic Willow/Dryas-Vetch type which occurs extensively on undulating portions of the island's upland and is associated with periglacial processes leading to patterned ground formation, has undergone a notable physiognomic change.Initially characterized by low shrubs and forbs, it is now characterized by grass.Similarly, the cover value of Arctic Lupine (Lupinus arcticus S. Wats.) increased markedly on many of the sites inventoried within this same vegetation type.Temperature records from Inuvik in the nearby Mackenzie Delta, suggest that the last 15 years have been warmer and somewhat drier than the 30 year normal in the region.Much of this increased cover of Arctagrostis latifolia and Lupinus arcticus is occurring on the bare patches of soil (frost boils or mud hummocks) that make up the patterned ground features of the vegetation type, an indication that these soil features generated and maintained by frost churning have stabilized to some degree.We speculate that periodic stabilization would be consistent with lower soil moisture levels in the active layer of underlying Cryosolic soils, resulting from warmer, drier climatic conditions.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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".