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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
| Formation | Polygons | Area (ha) | Share | Mean patch (ha) |
|---|---|---|---|---|
| Mangrove | 564 | 3,778.2 | 100.0% | 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 cell | Polygons | Area (ha) | Gi* z |
|---|---|---|---|
| -1.2, 41.75 | 14 | 25 | 1.79 |
| -1.15, 41.75 | 42 | 90 | 1.58 |
| -0.75, 42 | 1 | 65 | 1.57 |
| -0.85, 41.85 | 20 | 88 | 1.46 |
| -0.9, 41.85 | 3 | 65 | 1.46 |
| -0.8, 42.05 | 5 | 242 | 1.39 |
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.