A Comparison of Dispersal Traits in Dandelions Growing in Urban Landscape and Open Meadows
Bibliographic record
Abstract
The highly fragmented nature of habitats for plant growth in the urban landscape offers unique challenges to these plants and some weedy species have been particularly successful in exploiting these urban habitats. The common dandelion, Taraxacum officinale, is one such highly successful weed that grows profusely in both urban landscapes and open meadows. In this study, the growth, flowering intensity and achene and seed morphology of urban and meadow dandelions were compared. Achenes from urban plants showed higher germination and flowering success, producing significantly higher number of flowers. Achene morphology differed significantly between the two populations such that urban achenes have longer pappus beaks than their meadow counter parts. Urban achenes also dropped quickly to the ground limiting their dispersal capacity from the maternal plant. Morphological traits of urban dandelion achenes are likely to allow for enhanced survival under variable environments in the urban landscapes. Dandelions have been shown to be highly successful and especially capable of adjusting to different environmental pressures which may be the key to their success in colonizing diverse habitats all across the world including urban environments that constantly undergo modification.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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".