DESICCATION FREQUENCY REDUCES SPECIES DIVERSITY AND PREDICTABILITY OF COMMUNITY STRUCTURE IN COASTAL ROCK POOLS
Bibliographic record
Abstract
Success of aquatic organisms in temporary ponds depends on both survival through the dry period (i.e., resting eggs) and population dynamics through the wet period (i.e., recolonization, dispersal). We hypothesized that pools with high desiccation frequency would contain simpler communities (fewer species), and these communities would have greater compositional constancy (persistence) due to a restricted set of species. To test these hypotheses we examined diversity, species richness, abundance, evenness, community persistence, and community structure (species ranking) over time using 49 erosional rock pools located on the north coast of Jamaica. Diversity, species richness, and abundance decreased with increased frequency of pool desiccation. Pools were classified as temporary or permanent. In temporary pools, despite substantial inter-pool differences, diversity, species richness, evenness, and abundance did not change significantly over time. Contrary to our hypothesis, community persistence (compositi...
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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 | 0.000 | 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) | 0.001 | 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".