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ATLAS REPORT
Mangrove ecosystem report: Cameroon
Generated 15 October 2026, 02:45 from live Atlas data
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Executive summary
Atlas holds 374,330 mapped features and 295,035 observations in 92 datasets. The mapped mangrove canopy covers 212,245 ha in 5,630 polygons across 1 formation classes; Mangrove dominates with 100.0% of the area. The median patch is only 0.089 ha, while patches of 10 ha or more hold 98.9% of the area. 0 ha (0.0%) lies within 10 km of the LAPSSET development footprint.
Single mapping epoch (2019). Areas are geodesic hectares recalculated from geometry.
Species & formations
| Formation | Polygons | Area (ha) | Share | Mean patch (ha) |
|---|---|---|---|---|
| Mangrove | 5,630 | 212,245.2 | 100.0% | 37.70 |
Shannon evenness by area: 0.00
Fragmentation & landscape metrics
- Patches
- 5,630
- Mean / median / largest
- 37.70 / 0.089 / 27,996.3 ha
- Effective mesh size
- 7,761.8 ha
- Largest patch index
- 13.2%
- Power-law exponent α
- 1.47
Spatial clustering
Global Moran’s I = 0.143 (z = 3.5, p < 0.001). Hot-spot cells (Gi*, ≥95%): 20; cold-spot cells: 2.
| Top hot-spot cell | Polygons | Area (ha) | Gi* z |
|---|---|---|---|
| 4, 9.45 | 5 | 2,359 | 3.57 |
| 4.55, 8.55 | 2 | 1,380 | 3.27 |
| 4, 9.4 | 5 | 4,585 | 3.19 |
| 3.95, 9.35 | 3 | 2,481 | 2.93 |
| 3.95, 9.4 | 6 | 3,870 | 2.84 |
| 4.75, 8.6 | 9 | 3,365 | 2.77 |
Methods & limits
Areas and lengths are recomputed on the WGS 84 ellipsoid; units are harmonised (ha, m, %, UTC). The mapping is a single 2019 epoch; the source publishes no licence; field plots are a sample; scenario figures are illustrative assumptions. Cite the original publishers listed above. Full methods: Methodologies page.