Biometrics of adult Grey Plovers<i>Pluvialis squatarola</i>breeding in the Lena Delta, NE‐Siberia (the Sakha republic, Yakutia)
Bibliographic record
Abstract
The Grey Plover Pluvialis squatarola is a circumpolar breeding wader with slight clinal but discontinuous morphometric variations in the Palearctic. Birds breeding in eastern Siberia seem to be larger than birds breeding in western Siberia as well as those breeding in northern Canada and Alaska. Biometric data on 15 Grey Plovers trapped in the Lena Delta 1997 are supplied. In all morphometrical measurements females were on average larger than males, and significant differences occurred for tarsus length (48.1 vs 45.9mm). Furthermore, during incubation females were significantly heavier than males (228.9 vs 217.7g). Sexes could be distinguished by discriminant functions. Most measurements support the view that Palearctic birds are larger than Nearctic ones, but differentiation within the Palearctic remains obscure. Wing, tarsus and bill length of the Lena birds correspond with data from western Siberian birds rather than from eastern Siberia/Alaska; bill length coincides with measurements from Wrangel Island. Besides sex‐specific and geographical differences, migration routes and location of overwintering areas are discussed.
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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 | 0.000 | 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 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".