Maternal fitness consequences of interactions among agents of mortality in early life of salmonids
Bibliographic record
Abstract
Maternal effects can be key determinants of female fitness through their influence on survival in early life. In salmonid fishes, three density-dependent sources of offspring mortality are redd superimposition, predation, and starvation. An individual-based model was developed to explore how these sources of mortality can affect functional relationships among maternal fitness, maternal phenotype (body size), spawner density, and spawning timing. We found that the strength of the relationship between maternal size and fitness was highly context-dependent, differing with the source of offspring mortality and with interactions among the mortality agents. Component Allee effects at low spawner densities were also detected in some simulations. The results reveal unanticipated interactions among offspring mortality sources, maternal body size, and fitness. Given the high probability that these mortality sources differ considerably across variable temporal and spatial scales, there would be considerable value in obtaining field-based empirical data to test the predictions proffered here to better understand the correlates of maternal fitness in salmonid fishes.
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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 | 0.001 | 0.002 |
| 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 | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| 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".