Breeding, dispersal and migration of urban Peregrine falcons in eastern North America
Bibliographic record
Abstract
The recovery of the Peregrine Falcon (Falco peregrinus) in eastern North America is a great conservation success, but the largely new urban population that it has produced has received remarkably little study. Satellite telemetry, detailed monitoring of active nests, and a review of archived nesting data since the resumption of breeding in the east were used to characterize aspects of the ecology of this rebuilding population. The accuracy of small satellite transmitters was confirmed to be appropriate for tracking long-distance movements, and they were used to compare the dispersal and migration of 34 Peregrine Falcons. Adults from Alberta migrated farther than juveniles from eastern North America. Among the juveniles, those raised at natural nest sites or in rural habitat departed earlier, while males were much more likely to migrate long distances than females. Siblings varied considerably in their migratory strategies, and the one juvenile tracked over multiple years adapted his behaviour annually, suggesting that there are many factors involved in determining migratory movements in Peregrine Falcons, and that their relative importance may change with time. In Ontario, the Peregrine Falcon population has grown to a record size, initially due to an intense captive-breeding and release effort, and more recently to considerable immigration from adjacent states. This influx resulted in a substantial dilution of the original F.p. anatum gene pool, in part because anatum juveniles appear to have been recruited to the breeding population at a lower rate. The shift was also facilitated by a small number of immigrant adults producing a disproportionate percentage of the off
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How this classification was reachedexpand
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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".