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ATLAS REPORT

Mangrove ecosystem report: Ghana

Generated 15 October 2026, 09:15 from live Atlas data

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Executive summary

Atlas holds 118,503 mapped features and 37,971 observations in 29 datasets. The mapped mangrove canopy covers 9,126 ha in 2,198 polygons across 1 formation classes; Mangrove dominates with 100.0% of the area. The median patch is only 0.178 ha, while patches of 10 ha or more hold 86.9% 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)
Mangrove2,1989,125.9100.0%4.15
Shannon evenness by area: 0.00

Fragmentation & landscape metrics

Patches
2,198
Mean / median / largest
4.15 / 0.178 / 3,425.3 ha
Effective mesh size
1,382.6 ha
Largest patch index
37.5%
Power-law exponent α
1.70

Spatial clustering

Global Moran’s I = 0.248 (z = 3.3, p = 0.001). Hot-spot cells (Gi*, ≥95%): 8; cold-spot cells: 2.

Top hot-spot cellPolygonsArea (ha)Gi* z
5.75, 0.6593963.94
5.8, 0.65991693.56
5.75, 0.7795653.51
5.75, 0.7536213.30
5.8, 0.71283,6672.66
5.85, 0.65412.49

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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