Asexual regeneration and its implications for local bryophyte establishment in a Brazilian tropical rain forest
Bibliographic record
Abstract
Bryophyte spores commonly show ready germination under laboratory conditions and are assumed to be responsible for long-distance dispersal, but their role in plant establishment under field conditions is considered less important overall than asexual vegetative propagation. Local establishment from spores or vegetative propagules have not been extensively examined among tropical bryophyte species, making it difficult to test hypotheses concerning their roles under natural conditions. I examined 11 bryophyte species from two sites in a tropical rain forest in Brazil to investigate the regenerative capacities of detached leaves (vegetative propagules) under laboratory and field conditions. Spore germination and early gametophyte development were also analyzed for the most prolific spore-producing species. Detached leaves, in contrast to spores, promoted the most rapid plant local establishment, and performed similarly under both culture conditions. Most prolific spore-producing species did not necessarily demonstrate the lowest leaf-regeneration rates. Roles of detached leaves in the persistence strategies of bryophyte species from the Brazilian Atlantic rain forest (especially the dioecious mosses Leucoloma serrulatum Brid., Leucobryum clavatum Hampe, and Pyrrhobryum spiniforme (Hedw.) Mitt.) are reported for the first time, and information concerning the production and germination of spores under field conditions likewise contributes to our understanding of the roles of spores in bryophyte establishment.
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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 | 0.001 | 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".