Reproductive ecology of the western silvery aster Symphyotrichum sericeum in Canada
Bibliographic record
Abstract
Previous studies suggest that low seed production due to pollinator competition and seed predation may negatively affect the reproduction of the rare forb western silvery aster Symphyotrichum sericeum in Canada. Research was conducted to determine normal flower and seed production and the impact of seed predation, and to ascertain whether clipping surrounding vegetation and/or fertilizing with nitrogen stimulates flower and seed production in S. sericeum. Only 41% of all stems observed produced capitula, and less than 40% of the seeds in each capitulum were filled. Flower production was negatively correlated with percentage vascular plant cover and positively correlated with percentage cryptogamic cover. The main seed predator was a weevil (Anthonomus sp.) that destroyed about one-third of all capitula produced. None of the treatments applied (e.g. clipped, fertilized and clipped fertilized) significantly increased stem height, the percentage of flowering stems or seed production over the control; clipping actually decreased stem height. Fertilizing was the only treatment that showed some promise as it increased the number of capitula per flowering stem. Flower and seed production in S. sericeum may be facilitated by the presence of other species that modify the microenvironment. Low flower and seed production of plants in Canada is likely due to limited soil resources and pollen, and seed predation.
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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) | 0.000 | 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".