Impact of hydroelectric operations on the physiology of songbirds during fall migration
Bibliographic record
Abstract
Habitat quality in riparian zones used by Neotropical migrants, important for migration, will vary with changes in water level, an important management consideration for operation of hydroelectric facilities.I conducted a three-year study monitoring physiological condition of Fall migrants in relation to variation in water levels in four passerine species in Revelstoke, BC.Birds were blood-sampled during migration and I measured plasma metabolites (triglyceride, glycerol, & β-hydroxybutyrate) and corticosterone (CORT) as indicators of fattening rate and environmental stress, respectively.Migrants had low baseline CORT and showed a robust stress response following capture, contradicting the Migration-Modulation Hypothesis.Estimated fattening rate (triglyceride) increased with time of day and date, reflecting diurnal and seasonal variation in fattening, and among species.However, fattening rate did not vary among-years despite marked annual variation in water levels.Plasma glycerol and βhydroxybutyrate varied among years, but this was not consistently associated with high or low water levels.
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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".