Bibliographic record
Abstract
Long-term annual monitoring of coral reef communities on the north coast of Jamaica has revealed dramatic changes over the past two decades caused by natural and human stresses. Coral cover at replicate sites and depths has declined from 27-77% in the 1970's to less than 5% at most locations in 1990. Conversely. macroalgal cover has increased sharply from 1-3% cover before 1983 to >90% today. The species composition of coral. algal and herbivore assemblages has also changed markedly. Several major reef zones described earlier in pioneering studies by T.F. Goreau and colleagues, no longer exist (e.g. those formerly dominated by Zoanthus spp., Acropora palmata and A. cervicornis). Damage from two hurricanes (in 1980 and 1988) has been exacerbated by overfishing. which along with mass-mortalities of sea urchins (1983) has resulted in a sustained algal bloom that continues to prevent normal recovery of corals. Monitoring techniques alone were not always sufficient to uncover the mechanisms causing shifts in species composition. A parallel program of experiments, demographic analysis and life history studies has clarified why some species have declined while others have increased, and suggests some management options. The prospects for recovery of coral abundances in the short- and medium-term are poor. These results have numerous implications for the design of global reef-monitoring programs.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.003 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.004 | 0.006 |
| Open science | 0.003 | 0.004 |
| Research integrity | 0.007 | 0.003 |
| Insufficient payload (model declined to judge) | 0.989 | 0.991 |
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; the direct Gemma label and the distilled Codex classifier agree on what is shown here.
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".