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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

FormationPolygonsArea (ha)ShareMean patch (ha)
Mangrove5,630212,245.2100.0%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 cellPolygonsArea (ha)Gi* z
4, 9.4552,3593.57
4.55, 8.5521,3803.27
4, 9.454,5853.19
3.95, 9.3532,4812.93
3.95, 9.463,8702.84
4.75, 8.693,3652.77

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.
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