First confirmed report of a primary freshwater crab (Brachyura: Pseudothelphusidae) associated with bromeliads in the Neotropics
Bibliographic record
Abstract
Bromeliads can hold water in their axils, which can harbor an astonishing diversity of macro invertebrates, including decapod crustaceans. Except of a casual report from Trinidad, true freshwater crabs in these phytotelmata have been found exclusively in the Old World, and observations in the New World of crabs associated with bromeliads have been limited to sesarmid crabs, non-primary freshwater crabs that generally do not breed in freshwater. Here we report the presence of a true, or primary, freshwater crab in water-filled axils of a bromeliad in the Neotropics. Immature specimens of the pseudothelphusid crab provisionally identified as Epilobocera cf. gilmanii (Smith, 1870) were collected from inside the bromeliad Hohenbergia penduliflora (A. Richard) Mez. in western Cuba. Pseudothelphusid crabs have developed additional respiratory structures, which make them suitable candidates for a life in phytotelmic microhabitats. It is still uncertain whether in Cuba these crabs actually breed in phytotelmata or only use this microhabitat during their early life stages.
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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 | 0.001 |
| 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 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".