Relative contribution of vegetative propagation and sexual reproduction in the maintenance of Acrosiphonia (Chlorophyta) populations
Bibliographic record
Abstract
Abstract We provide evidence for new vegetative growth in spring from overwintering basal remnants of the green alga Acrosiphonia (Codiolales sensu van den Hoek et al. 1995) long after mortality of the filamentous thalli at two independent study sites in Barkley Sound, British Columbia, Canada. The two study sites differed in Acrosiphonia species composition, abundance and seasonality, but were both characterised by disturbance. At Prasiola Point we estimated approximately 15–30% Acrosiphonia recruitment to originate from vegetative regrowth (based on mapping individual thalli). At Seppings Island significantly lower Acrosiphonia recruitment on cleared boulders than uncleared boulders provided an estimate of approximately 50% recruitment from vegetative regrowth. These results increase our understanding of the complex life history of Acrosiphonia in southwestern British Columbia by detecting the role of vegetative propagation in the maintenance of sexually reproducing populations. The previously undocumen...
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 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".