FIRST RECORD OF MULTIPLE LEUCISM IN COASTAL TAILED FROG TADPOLES (ASCAPHUS TRUEI; ANURA: ASCAPHIDAE)
Bibliographic record
Abstract
Albinism is a chromatic disorder that inhibits melanin production and is rarely observed in natural populations, with occurrences often limited to only single individuals. Here, we report on the 1st documented case of multiple leucism in Coastal Tailed Frog (Ascaphus truei) tadpoles observed in a small stream in British Columbia, Canada. During intensive surveys of 21 streams in 2021, we captured 3 leucistic tadpoles (0.10% of all tadpoles captured) at the same site. Leucistic tadpoles lacked pigmentation on all body surfaces but possessed black eyes. Relative to individuals with typical coloration, leucistic tadpoles may be rarely observed due to higher mortality rates and delayed time to metamorphosis, but the effect of leucism on fitness is poorly understood.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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 | 0.001 |
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".