Growth of Nestling Ipswich Sparrows in Relation to Season, Habitat, Brood Size, and Parental Age
Bibliographic record
Abstract
At 7 days of age, nestling "Ipswich Sparrows" (Passerculus sandwichensis princeps) had attained 79% of the weight of breeding adults.Their weight at 7 days was uncorrelated (r = 0.02) with the exponential rate of weight gain during the period 0-7 days but negatively correlated (r = -0.40)with the rate at which this weight gain is damped.Nestling weight varied inversely with brood size and showed a midsummer minimum, especially with large brood sizes.Nestling tarsus length, growth rate, and damping rate each varied directly with brood size and had a midsummer maximum.Yearling adults raised nestlings with lower damping rates and higher weights than did older adults.Variation in nestling weight is thought to be influenced by sibling competition for food and the amount of time and energy invested by parents in nestlings at the expense of subsequent broods.The thermal consequences of brood size may contribute to the variation in tarsus length.
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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".