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ATLAS REPORT

Mangrove ecosystem report: Djibouti

Generated 15 October 2026, 08:22 from live Atlas data

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Executive summary

Atlas holds 66,847 mapped features and 38,022 observations in 25 datasets. The mapped mangrove canopy covers 555 ha in 82 polygons across 1 formation classes; Mangrove dominates with 100.0% of the area. The median patch is only 0.875 ha, while patches of 10 ha or more hold 78.7% 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)
Mangrove82554.5100.0%6.76
Shannon evenness by area: 0.00

Fragmentation & landscape metrics

Patches
82
Mean / median / largest
6.76 / 0.875 / 205.2 ha
Effective mesh size
105.1 ha
Largest patch index
37.0%
Power-law exponent α
1.63

Spatial clustering

Global Moran’s I = -0.337 (z = -1.0, p = 0.341). Hot-spot cells (Gi*, ≥95%): 0; cold-spot cells: 0.

Top hot-spot cellPolygonsArea (ha)Gi* z
12.15, 43.4152391.82
12.4, 43.39270.31
12.45, 43.39300.14
12.45, 43.252120.14
11.5, 43.1531-0.31
11.7, 43.2734-0.33

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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