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ATLAS REPORT

Mangrove ecosystem report: Somalia

Generated 15 October 2026, 03:52 from live Atlas data

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Executive summary

Atlas holds 70,345 mapped features and 23,095 observations in 23 datasets. The mapped mangrove canopy covers 3,778 ha in 564 polygons across 1 formation classes; Mangrove dominates with 100.0% of the area. The median patch is only 0.357 ha, while patches of 10 ha or more hold 85.8% 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)
Mangrove5643,778.2100.0%6.70
Shannon evenness by area: 0.00

Fragmentation & landscape metrics

Patches
564
Mean / median / largest
6.70 / 0.357 / 418.1 ha
Effective mesh size
111.3 ha
Largest patch index
11.1%
Power-law exponent α
1.53

Spatial clustering

Global Moran’s I = -0.006 (z = 0.1, p = 0.902). Hot-spot cells (Gi*, ≥95%): 0; cold-spot cells: 1.

Top hot-spot cellPolygonsArea (ha)Gi* z
-1.2, 41.7514251.79
-1.15, 41.7542901.58
-0.75, 421651.57
-0.85, 41.8520881.46
-0.9, 41.853651.46
-0.8, 42.0552421.39

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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