Influence of Cyclic Pre-lay Attendance on Synchronous Breeding in Common Murres
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Bibliographic record
Abstract
Social stimulation in concert with environmental factors may influence the degree of reproductive synchrony among colonial breeders. Synchronous breeding has been shown to enhance reproductive success by decreasing predation. Although Common Murres (Uria aalge) typically have a cyclic pre-lay attendance pattern, during one of four consecutive breeding seasons we observed one acyclic pre-lay period (1999). The present study investigated how differences in pre-lay attendance patterns may influence breeding synchrony and reproductive success in a Common Murre sub-colony on Great Island, Newfoundland. Compared to the cyclic pre-lay period (2000), the acyclic pre-lay period showed: i) less synchronous egg-laying, ii) pairs spent less time together at their site due to the overall lower attendance by both sexes, but particularly by females, and iii) higher predation during early and first half of peak egg-laying, although overall reproductive success did not differ between years due to high re-laying rates. These results suggest that cyclic attendance during the pre-lay period of Common Murres may influence breeding synchrony within a sub-colony, which may reduce predation during early incubation and late chick rearing.
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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 it