Anatomy and Histology of the Gastrointestinal Tract of European Starlings ( <i>Sturnus Vulgaris</i> )
Bibliographic record
Abstract
There is a dearth of published data related to, or describing, the detailed anatomy and histology of the avian gut from oesophagus to cloaca, apart from that relating to commercial poultry. Without an accepted description of normal anatomy it is difficult for researchers to know whether observations in a specific population are normal or not, or for veterinarians to know what to expect during surgery or necropsy, and impedes the understanding of the remarkable adaptations among or within species. Also, as interest in the physiological role played by gut microbiota increases in avian studies, knowledge of species-specific gastrointestinal anatomy is essential. European Starlings ( Sturnus vulgaris) are a prolific, well-studied invasive species across much of the world, and yet there is no information describing the anatomy of the gastrointestinal tract, or how it compares to similar species. Here, we describe the anatomy, histology and histochemistry of gastrointestinal tracts from 15 day old starlings from the proximal oesophagus to distal cloaca in order to facilitate comparison among species and different populations of the same species.
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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 | 0.000 |
| 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) | 0.002 | 0.001 |
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".