Distyly, floral visitors, and fructification in 2 natural populations of <i>Psychotria nervosa</i> (Rubiaceae)
Bibliographic record
Abstract
Distyly is a common reproductive strategy in the family Rubiaceae. Studies on tropical species of the genus Psychotria present several cases of atypical distyly, e.g., the absence of reciprocal positioning of sexual organs between morphs, anisoplethy, limited pollen availability, and monomorphy. To describe the floral polymorphism and reproductive ecology of Psychotria nervosa, I studied the proportion of morphs, the floral morphology, the number of inflorescences, flowers, and fruits set between morphs, and the diversity and behaviour of floral visitors in 2 natural populations of the species in a seasonally dry tropical forest in Mexico. Psychotria nervosa is a distylous species; both populations presented a 1:1 morph ratio, with reciprocal positioning of sexual organs between morphs, as well as a suite of ancillary floral traits associated to polymorphism. The diversity and behaviour of the floral visitor assemblage caused a higher fruit set in the long-styled morph than in the short-styled morph in both populations. Furthermore, the highest fruit set was observed in the most morphologically reciprocal population.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".