Purple martin stewardship and recovery in British Columbia—two decades of successes and challenges
Bibliographic record
Abstract
Abstract: The western subspecies of the purple martin (Progne subis arboricola: Behle 1968)1, the largest North American member of the swallow family (Hirundinidae), is red-listed in British Columbia because of ongoing loss of nesting habitat and severe competition for nest cavities from two introduced bird species, the European starling (Sturnus vulgaris) and the house sparrow (Passer domesticus). By 1985, this subspecies had been reduced to about 5 breeding pairs in British Columbia, all of which were nesting in natural cavities in offshore pilings. The population has since rebounded to over 200 nesting pairs in 2003. This increase was entirely the result of nest boxes being built, erected, monitored, and maintained, mainly by volunteers, at many marine coastal locations along southeast and east Vancouver Island, the British Columbia Lower Mainland, the Gulf Islands, and the Sunshine Coast within the Georgia Basin. Due to changes in provincial government funding and management priorities in 2002, the Georgia Basin Ecological Assessment and Restoration Society (a Nanaimo-based nonprofit conservation organization) agreed to provide ongoing overall project coordination and management for the continuation of the British Columbia Purple Martin Nest Box Stewardship and Recovery Program. This program consists of a long-term nest box colony monitoring and
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".