Bibliographic record
Abstract
69. Barren Ground Shrew Sorex ugyunak French: Musaraigne de Beaufort / German: Kanadische Tundraspitzmaus / Spanish: Musarafna de tierras aridas Taxonomy. Sorex cinereus ugyunak R. M. An- derson & Rand, 1945, “ Tuktuk (Tuktuyak- tok), northeast side of Mackenzie River delta, south of Toker Point, Mackenzie District, Northwest Territories, Canada.” Sorex ugyunak is in the S. cinereus group and subgenus Otisorex. It is included in the Beringian clade along with S. pribilofensis, S. portenkor, S. jackson, S. camtschaticus, and S. leucogaster; all six species might repre-::: sent one wide-ranging species based on genetic information, but they are retained as distinct here until additional research is undertaken. S. ugyunak has been included in S. cinereus, but genetic and morphological evidence supports its recognition as a distinct species. Monotypic. Distribution. N Alaska (USA), N Yukon, N Northwest Territories, Nunavut, extreme NE Saskatchewan, and NW Manitoba (N Canada). Descriptive notes. Head-body 47-70 mm, tail 32-37 mm, hindfoot 12-14 mm; weight 4-5 g. The Barren Ground Shrew is small to medium-sized, with striking pelage. Dorsum is dark brown—darker than in the Pribilof Island Shrew (S. pribilofensis) but lighter than in the Saint Lawrence Island Shrew (S. jacksoni); venter and lower sides are whitish with brownish tone; and distinctive line separates dorsum and sides. Tailis relatively short, narrow, and bicolored, being light brown above and whitish below, with brown or buffy tuft of hair at tip. Juvenile Barren Ground Shrews are more uniformly colored than adults. Teeth are dark red. There are five unicuspid,fifth is minute, and first through fourth get slightly smaller from front to back. Chromosomal complement has 2n = 60 and FN = 62. Habitat. Moist tundra, with shrubby willows and birch, and sedge and grass meadows. Food and Feeding. No information. Breeding. No information. Activity patterns. No information. Movements, Home range and Social organization. No information. Status and Conservation. Classified as Least Concern on The IUCN Red List. The Barren Ground Shrew is widespread with no major threats and is considered relatively common throughout its distribution. Bibliography. Cassola (2016t), Demboski & Cook (2003), Hope et al. (2012), Ivanitskaya & Kozlovsky (1985), van Zyll de Jong (1982, 1991).
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.018 | 0.005 |
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".