Molecular Phylogenetics and Taxonomy of the =Subgenus pika (Ochotona, Lagomorpha)
Bibliographic record
Abstract
A phylogenetic analysis based on partial sequences of 2 mitochondrial genes (cytochrome b and cytochrome c oxidase subunit I) confirmed that Ochotona alpina (Pallas, 1773) and O. turuchanensis Naumov, 1934, are sister taxa to all other Palearctic species of the subgenus Pika. O. hyperborea (Pallas, 1811) contains sufficient genetic heterogeneity to define 2 or 3 races within this species. Examination of genetic data supports the recognition of O. scorodumovi Skalon, 1935, as a distinct species. The proper name of the taxon (either O. scorodumovi Skalon, 1935, or O. mantchurica Thomas, 1909) remains to be established. O. hoffmanni Formozov et al, 1996, is probably the closest relative of O. scorodumovi. These 2 taxa constitute a sister group to O. hyperborea. All the above-mentioned Palearctic taxa constitute the monophyletic alpina–hyperborea group. The pallasi group contains at least 3 taxa: O. (p.) pallasi (Gray, 1867), O. (p.)pricei Thomas, 1911, and O. (p.) argentata Howell, 1928. The taxonomic rank of these 3 taxa requires additional careful investigation. Nearctic pikas O. princeps (Richardson, 1828) and O. collaris (Nelson, 1893) constitute a monophyletic group separate from Palearctic taxa.
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) | 0.000 | 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".