Growth and survival patterns of <i>Cardiocrinum cordatum</i> var. <i>glehnii</i> (Liliaceae) based on a 13-year monitoring study: Life history characteristics of a monocarpic perennial herb
Bibliographic record
Abstract
Based on 13 years of monitoring, the fates of individuals and contributions of size and age to demography through the life-history from seedling to flower were investigated in a monocarpic perennial herb, Cardiocrinum cordatum (Thunb.) Makino var. glehnii (F. Schmidt) H. Hara. Of 6155 seedlings, 5264 (85.5%) and 852 (13.8%) plants died at the seedling and one-leaf stage during the 13 years, respectively. Twelve individuals (0.40%) at the three- to seven-leaf stage reproduced after vegetative growth for 7–11 years, and all of them always showed constant positive growth patterns. Significant differences of sizes were detected between surviving and non-surviving individuals in earlier years at the one- and two-leaf stages. Logistic regression models showed that the survival and stage-increase probabilities increased until 5-years-old but decreased over 6-years-old, suggesting the significance of aging effects. At the four-leaf stage, the flowering probability increased with size, while it increased with leaf-stage but not size at greater stages. Individual growth models then suggested that many plants grew moderately: not only slow-growing but also rapidly-growing individuals tended to die within 7 years. Our study clarified three aspects of the life-history of C. cordatum: longevity of about a decade, constantly positive growth to flowering, and aging effects on growth and survival.
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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 | 0.000 | 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".