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ATLAS REPORT
Mangrove ecosystem report: Egypt
Generated 15 October 2026, 13:02 from live Atlas data
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Executive summary
Atlas holds 97,910 mapped features and 38,022 observations in 31 datasets. The mapped mangrove canopy covers 205 ha in 83 polygons across 1 formation classes; Mangrove dominates with 100.0% of the area. The median patch is only 0.319 ha, while patches of 10 ha or more hold 61.4% 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 | 83 | 205.0 | 100.0% | 2.47 |
Shannon evenness by area: 0.00
Fragmentation & landscape metrics
- Patches
- 83
- Mean / median / largest
- 2.47 / 0.319 / 34.8 ha
- Effective mesh size
- 16.3 ha
- Largest patch index
- 17.0%
- Power-law exponent α
- 1.67
Spatial clustering
Global Moran’s I = 0.384 (z = 1.5, p = 0.128). Hot-spot cells (Gi*, ≥95%): 0; cold-spot cells: 0.
| Top hot-spot cell | Polygons | Area (ha) | Gi* z |
|---|---|---|---|
| 26.75, 33.95 | 5 | 37 | 1.86 |
| 26.7, 33.95 | 3 | 18 | 1.86 |
| 27.2, 33.85 | 6 | 32 | 1.48 |
| 28.1, 34.4 | 6 | 10 | 1.45 |
| 28.15, 34.4 | 12 | 38 | 1.16 |
| 28.2, 34.4 | 2 | 6 | 1.14 |
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.