Investigating changes in Mangrove cover and conservation policy in the protected area of Yum Balam, Mexico, 1981-2020
Bibliographic record
Abstract
Mangrove forests are endangered ecosystems that provide many environmental services.This research documents changes in mangrove cover in the protected area Yum Balam, in Mexico, from 1981 to 2020; reviews conservation policy; and examines the area's current land management plan.Results show an early period of significant losses, followed by a period of relative stability, and a recent period of losses in areas close to the communities of Chiquila and Holbox, with significant gains elsewhere.Comparative analysis of results using spatial data from government agencies, Global Mangrove Watch, and Google Engine revealed some discrepancies, but similarities in the overall trend.The current land management plan favours tourism over strict protection, allowing development within newly defined sub-zones.Tourism, urbanization, and changes in land tenure are likely causes of recent mangrove losses.Further investigation of these drivers and monitoring mangrove cover will be important for elaborating informed conservation policy for Yum Balam.
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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 | 0.001 |
| 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".