DNA analysis of clonal structure of an old growth, isolated forest of <i>Cryptomeria japonica </i>in a snowy region
Bibliographic record
Abstract
The regeneration system and clonal structure of Cryptomeria japonica D. Don were investigated in an old growth forest at an altitude of 1420 m, by examining root connections and DNA analysis. The C. japonica at this site was found to regenerate mostly by layering, and we found no clear evidence of regeneration through seedlings. Determining the clonal structure of this stand is much simpler by DNA analysis than by tracing root interconnections. The results of the DNA analysis suggest that all the C. japonica individuals present have close kinship. The study also supported earlier suggestions that the stand is becoming increasingly dominated by a few C. japonica clones with high levels of cold tolerance and good rooting ability. The formation of this type of stand appears to be strongly related to environmental factors such as the mean temperature and snow depth in winter.
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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 | 0.003 |
| 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".