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ATLAS REPORT

Mangrove ecosystem report: Republic of the Congo

Generated 15 October 2026, 13:56 from live Atlas data

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Executive summary

Atlas holds 297,487 mapped features and 294,959 observations in 91 datasets. The mapped mangrove canopy covers 3,000 ha in 913 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 80.2% 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)
Mangrove9133,000.0100.0%3.29
Shannon evenness by area: 0.00

Fragmentation & landscape metrics

Patches
913
Mean / median / largest
3.29 / 0.178 / 714.4 ha
Effective mesh size
302.8 ha
Largest patch index
23.8%
Power-law exponent α
1.65

Spatial clustering

Global Moran’s I = -0.168 (z = -1.1, p = 0.260). Hot-spot cells (Gi*, ≥95%): 0; cold-spot cells: 0.

Top hot-spot cellPolygonsArea (ha)Gi* z
-4, 11.2568771.72
-4.05, 11.211301.42
-4, 11.21201.42
-4.45, 11.6530941.39
-4.5, 11.65201.39
-4, 11.370471.20

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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