Ecology of Pacific white-sided dolphins (Lagenorhynchus obliquidens) in the coastal waters of British Columbia, Canada
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The ecology of Pacific white-sided dolphins (Lagenorhynchus obliquidens) in the Broughton \nArchipelago, British Columbia (BC), Canada was explored through photo-identification, mark- \nrecapture, acoustics, and sociality studies. New population parameters were estimated from \nphoto-ID data for the first time in this species. Abundance was highly variable, ranging from \n546 (95% CI: 293-1,018) to 2,889 (95% CI: 1,424-5,863), after accounting for the proportion \n(0.57; 95% CI: 0.55 - 0.60) of marked dolphins. A “match uncertainty” analysis showed that \nless strict matching criteria caused negative bias in abundance estimates and an apparent \nimprovement in precision. Estimates of survival rate ranged from 0.907 (SE=0.03) to 0.989 \n(SE= 0.066). Robust design analyses revealed random temporary emigration movement at 0.14 \n(SE=0.318) annually and no movement seasonally. The study revealed new evidence for \nphilopatry and sociality: some individuals were resighted over 19-year periods, and associated \npairs more than a decade apart. Evidence was found for a high degree of sociality. The mean \nproportion of calves was estimated as 0.0597 (SE=0.0083, 95% CI: 0.045-0.079) per capita, \ntranslating to an average probability of pregnancy in adult females of 0.238 (95% CI: 0.180- \n0.316) and an average interbirth interval of 4.2 years. Approximately 3.9% of dolphins bore \ninjuries from killer whales, but only 0.5% showed evidence of interactions with fishing gear or \npropellers. Acoustic evidence for population structure was equivocal, but warrants additional, \ntargeted research. Population viability analysis predicted an average rate of annual decline of - \n0.122 (95% CI: -0.143 to -0.101), given a range of input values in a sensitivity test, over the \nnext 50 years.
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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 | 0.007 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.000 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.002 | 0.003 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.003 | 0.001 |
| Research integrity | 0.001 | 0.003 |
| 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 it