Effects of Elevated Soil Temperature on the Growth of Cirsium arvense (Canada Thistle)
Bibliographic record
Abstract
Canada thistle (Cirsium arvense) is an invasive plant species that came from Europe and reproduces using both seeds and rhizomes. This species and other invasives may opportunistically invade disturbed patches in riparian forests. In addition to increased development and riparian deforestation, global climate change may increase the potential growth and reproduction of Canada thistle. The purpose of this study is to develop a method for examining the effects of elevated soil temperatures on plant growth using Canada thistle as a model organism. Canada thistle was grown from rhizomes in one gallon pots with 8 pots on soil heating mats. A subset pots with normal and elevated temperatures were monitored with soil temperature sensors. We recorded mortality and the height of each plant during several periods throughout the study. Preliminary results indicate that sunlight may have a stronger effect on plant growth than soil temperature. Overall, assessing the effects of soil warming on Canada thistle growth can provide some insight into how climate change may affect the health of riparian forests.
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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 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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".